BMW Drivetrain Parts

Street Density Transmission Mount - Sold as Set of 2

2X Entries Into Our F80 M3 Sweepstakes

T#:24079616

Part#: 034-509-4062

In Stock

Sale - Save 10% $ 25.00

This product was last offered at the strikethrough price on
08-17-2026

$ 22.50 USD

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Sale - Save 10%

$ 25.00

This product was last offered at the strikethrough price on
08-17-2026

$ 22.50 USD

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Designed with both comfort and performance in mind, the Street-Density line from 034Motorsport is the perfect choice for the OEM+ enthusiast. These mounts feature high-durometer rubber construction to keep NVH low. However, they do not utilize the same fluid-filled technology as the factory mounts, eliminating all slop to deliver power more efficiently.

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034Motorsport Density Line Solid Rubber Motor Mount Set - E36 E46 non...

2X Entries Into Our F80 M3 Sweepstakes

T#:568474

Part#: 034-509-0064KT

In Stock

$ 210.00 USD

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$ 210.00 USD

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Collapsing and worn engine mounts can mean big trouble for BMWs. The stock mounts are filled with fluid that can leak or evaporate over time. That leaves the mount unstable and too flexible to properly support the engine. The side effects of a worn engine mount are: shaking and vibrating engine, driveline twist from engine torque that can break or snap bushings, and broken motor mount arms and bolts. If you're tired of replacing engine mounts you'll be very pleased with these solid rubber versions. Not only are these more reliable than stock fluid-filled mounts, they are slightly stiffer than new stock mounts thanks to a solid rubber construction (no voids in the rubber) but designed for street use so they remain quiet and comfortable. The solid rubber has less deflection than a stock mount, so no wasted engine motion. Less wasted motion gives you more torque to the wheels (it's not spent twisting the engine) and better engine response.

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GSP Rear Axle Assembly - E36

T#:389719

Part#: NCV27503

In Stock

$ 164.99 USD

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$ 164.99 USD

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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E36 BMW M3

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Density Line Solid Rubber Engine And Trans Mount Set - E82/E9X ...

2X Entries Into Our F80 M3 Sweepstakes

T#:389756

Part#: 034-509-N5X

In Stock

$ 330.00 USD

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$ 330.00 USD

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Collapsing and worn engine mounts can mean big trouble for N52/N54/N55 cars. The stock mounts are filled with fluid that can leak or evaporate over time. That leaves the mount unstable and too flexible to properly support the engine. The side effects of a worn engine mount are: shaking and vibrating engine, driveline twist from engine torque that can break or snap bushings, and broken motor mount arms and bolts. If you're tired of replacing engine mounts you'll be very pleased wtih these solid rubber versions.

Not only are these more reliable than stock fluid-filled mounts, they are slightly stiffer than new stock mounts thanks to a solid rubber construction (no voids in the rubber) but designed for street use so they remain quiet and comfortable. The solid rubber has less deflection than a stock mount, so no wasted engine and transmission motion. Less wasted motion gives you more torque to the wheels (it's not spent twisting the engine) and better shifts.

Sold as a set of matching engine and transmission mounts.

This item fits the following BMWs:
2008-2013 E82 E88 BMW 128i 135i 1M Coupe
2006-2011 E90 BMW 325i 325xi 328i 328xi 330i 330xi 335i 335xi - Sedan
2007-2011 E91 BMW 325i 325xi 328i 328xi - Touring Wagon
2007-2013 E92 BMW 328i 328xi 335i 335is 335xi - Coupe
2007-2013 E93 BMW 328i 335i 335is - Convertible
2009-2016 E89 BMW Z4 sDrive30i Z4 sDrive35i Z4 sDrive35is

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GSP Rear Axle Assembly - E24, E28, E34

T#:389693

Part#: NCV27526

In Stock

$ 104.99

This product was last offered at the strikethrough price on
08-31-2026

$ 91.99 USD

Limited Qty Sale

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$ 104.99

This product was last offered at the strikethrough price on
08-31-2026

$ 91.99 USD

Limited Qty Sale

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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E24 BMW 633CSi M6

E28 BMW 524td 528e 533i 535i 535is M5

E34 BMW 530i 535i 540i M5

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GSP Rear Axle Assembly - E34

T#:389698

Part#: NCV27527

Ships in 2 Business Days

$ 104.99 USD

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$ 104.99 USD

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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E34 BMW 525i 525iT 530i 535i

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GSP Front Axle Assembly - Left - E46

T#:389705

Part#: NCV27522

In Stock

$ 90.99 USD

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$ 90.99 USD

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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E46 BMW 325xi 330xi

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034Motorsport Density Line Solid Rubber Motor Mount Set - E8X/E9X ...

2X Entries Into Our F80 M3 Sweepstakes
[Z4] - For Roadster Models Only

T#:388772

Part#: 034-509-005X

In Stock

$ 264.00 USD

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$ 264.00 USD

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Collapsing and worn engine mounts can mean big trouble for N52/N54/N55 cars. The stock mounts are filled with fluid that can leak or evaporate over time. That leaves the mount unstable and too flexible to properly support the engine. The side effects of a worn engine mount are: shaking and vibrating engine, driveline twist from engine torque that can break or snap bushings, and broken motor mount arms and bolts. If you're tired of replacing engine mounts you'll be very pleased wtih these solid rubber versions.

Not only are these more reliable than stock fluid-filled mounts, they are slightly stiffer than new stock mounts thanks to a solid rubber construction (no voids in the rubber) but designed for street use so they remain quiet and comfortable. The solid rubber has less deflection than a stock mount, so no wasted enginemotion. Less wasted motion gives you more torque to the wheels (it's not spent twisting the engine) and better engine response.

This item fits the following BMWs:
2008-2013 E82 E88 BMW 128i 135i 1M Coupe
2006-2011 E90 BMW 325i 325xi 328i 328xi 330i 330xi 335i 335xi - Sedan
2007-2011 E91 BMW 325i 325xi 328i 328xi - Touring Wagon
2007-2013 E92 BMW 328i 328xi 335i 335is 335xi - Coupe
2007-2013 E93 BMW 328i 335i 335is - Convertible
2009-2016 E89 BMW Z4 sDrive30i Z4 sDrive35i Z4 sDrive35is

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GSP Front Axle Assembly - Right - E46

T#:389709

Part#: NCV27523

In Stock

$ 117.99 USD

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Qty

$ 117.99 USD

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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E46 BMW 325xi 330xi

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034Motorsport Solid Rubber Engine And Trans Mount Set - E36 E46 non-M...

2X Entries Into Our F80 M3 Sweepstakes

T#:568476

Part#: 034-509-3646

In Stock

$ 276.00 USD

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Qty

$ 276.00 USD

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Collapsing and worn engine mounts can mean big trouble for BMWs. The stock mounts are filled with fluid that can leak or evaporate over time. That leaves the mount unstable and too flexible to properly support the engine. The side effects of a worn engine mount are: shaking and vibrating engine, driveline twist from engine torque that can break or snap bushings, and broken motor mount arms and bolts. If you're tired of replacing engine mounts you'll be very pleased wtih these solid rubber versions. Not only are these more reliable than stock fluid-filled mounts, they are slightly stiffer than new stock mounts thanks to a solid rubber construction (no voids in the rubber) but designed for street use so they remain quiet and comfortable. The solid rubber has less deflection than a stock mount, so no wasted engine and transmission motion. Less wasted motion gives you more torque to the wheels (it's not spent twisting the engine) and better shifts.

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E36 M3, MZ3 JB Racing Lightweight Aluminum Flywheel

T#:3771

Part#: 520-010-240

Ships in 9 Business Days

$ 602.00 USD

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$ 602.00 USD

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch). In addition to the standard replacement clutches, we also sell Sachs Performance sprung hub clutches that also work with the JB flywheels.

Stock Flywheel Weight = 25.5lbs
JB Flywheel Weight = 10.0lbs

This item fits the following BMWs:
1995-1999 E36 BMW M3
1998-2002 Z3 BMW Z3 M Roadster M Coupe

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GSP Rear Axle Assembly - Left - E36, E46, E82, E88, Z3, Z4

T#:389676

Part#: NCV27990

In Stock

$ 111.99 USD

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Qty

$ 111.99 USD

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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E82/88 BMW 128i

E46 BMW 323i 323is 325Ci 325i 325xi 328CI 328i

E36 BMW 323is 328i 328is

Z3 BMW 1.9 2.3i 2.5i 2.8 3.0i

Z4 BMW 2.5i 3.0i

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E30 318i/is, E36 318i, Z3 1.9 JB Racing Lightweight Aluminum Flywheel...

T#:3769

Part#: 520-040-215

Ships in 3 Business Days

11% off MSRP $ 765.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 679.00 USD

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11% off MSRP

$ 765.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 679.00 USD

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

Stock Flywheel Weight = 27.0lbs
JB Flywheel Weight = 9.0lbs

This item fits the following BMWs:
1989-1992 E30 BMW 318i 318is 318ic
1992-1997 E36 BMW 318i 318is 318ti 318ic
1996-1997 Z3 BMW Z3 1.9

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E60, E82, E85, E9X, E89 (N52 Engine) JB Racing Lightweight Aluminum F...

T#:2801

Part#: 520-200-240

In Stock

$ 714.00 USD

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$ 714.00 USD

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

This JB flywheel replaces the stock flywheel and can be used with either the stock 228mm or stock 240mm clutch discs. Depending on the model you may have either clutch size in your car but this flywheel is compatible with both. You can install a 240mm clutch as a mild upgrade.

Stock Flywheel Weight = 24-31.0lbs
JB Flywheel Weight = 12.0lbs

This item fits the following BMWs:
2006-2010 E60 BMW - 525i, 528i, 530i
2006-2013 E90, E91, E92, E93 BMW - 325i, 328i, 330i
2007-2013 E82 BMW - 125i, 128i
2006-2008 E85, E86 BMW - Z4 3.0i, Z4 3.0si
2009-later E89 BMW - Z4 3.0i

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E46 M3 6MT JB Racing Lightweight Aluminum Flywheel

T#:302739

Part#: 520-180-240

Ships in 8 Business Days

$ 602.00 USD

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Qty

$ 602.00 USD

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch). In addition to the standard replacement clutches, we also sell Sachs Performance sprung hub clutches that also work with the JB flywheels.

Stock Flywheel Weight = 25.0lbs
JB Flywheel Weight = 10.0lbs

This item fits the following BMWs:
2001-2006 E46 BMW M3 (6-speed manual only, not for SMG)

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JB Racing Single Mass Lightweight Aluminum Flywheel - 6-speed - E46 3...

T#:3474

Part#: 520-190-240

Ships in 4 Business Days

$ 672.00 USD

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Qty

$ 672.00 USD

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This is a performance replacement for BMW Part # 21207533868 Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

The JB Flywheel includes the pilot bearing mounted in the flywheel hub, just like the factory configuration.

Stock Flywheel Weight = 25.0lbs
JB Flywheel Weight = 10.5lbs

This item fits the following BMWs:
2002-2005 E46 BMW 325i 330i (with 6-speed manual transmission)

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E34 M5 JB Racing Lightweight Aluminum Flywheel

T#:3772

Part#: 520-090-240

Ships in 3 Business Days

$ 581.00 USD

Add to Wish List

Qty

$ 581.00 USD

Add to Wish List

Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable.

Stock Flywheel Weight = 16.0lbs
JB Flywheel Weight = 8.0lbs

This item fits the following BMWs:
1991-1995 E34 BMW M5

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E30 325i, E34 525i (M20) JB Racing Lightweight Aluminum Flywheel (Rep...

T#:385699

Part#: 520-060-228

Ships on Sep 23, 2026

$ 581.00 USD

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Qty

$ 581.00 USD

Add to Wish List

Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

This flywheel replaces the stock original single-mass flywheel and should only be used with the corresponding 'single-mass' clutch kit. According to BMW the single mass flywheel was installed in all 325i up to 12/86 production date but we have seen some later cars with a single-mass flywheel. The age of the car almost guarantees one or more clutch replacements and possibly a change to the original flywheel as well. You may not know which flywheel is currently installed until the flywheel cover or the transmission is removed.

Stock Flywheel Weight = 18.0lbs
JB Flywheel Weight = 8.0lbs

This item fits the following BMWs:
1984-1991 E30 BMW 325i 325ic 325is (with single-mass flywheel)
1989-1990 E34 BMW 525i (with single-mass flywheel)

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034 Motorsport Density Line Transmission Mounts- 60D - BMW E9X M3, E6...

2X Entries Into Our F80 M3 Sweepstakes

T#:50731689

Part#: 034-509-4065

In Stock

$ 29.00 USD

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$ 29.00 USD

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Eliminate drivetrain slop and restore your BMW's shifting precision.

E46 323/325/328/330 5-speed, Z3 2.3/2.8/3.0 JB Racing Lightweight Alu...

T#:4227

Part#: 520-140-240

In Stock

$ 602.00

This product was last offered at the strikethrough price on
09-02-2026

$ 550.99 USD

Limited Qty Sale

Add to Wish List

Qty

$ 602.00

This product was last offered at the strikethrough price on
09-02-2026

$ 550.99 USD

Limited Qty Sale

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch). In addition to the standard replacement clutches, we also sell Sachs Performance sprung hub clutches that also work with the JB flywheels.

Stock Flywheel Weight = 25.0lbs
JB Flywheel Weight = 10.0lbs

This item fits the following BMWs:
1999-2002 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci (with 5-speed manual transmission)
2001-2005 E46 BMW 325xi 330xi
1997-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i

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E30 M3 JB Racing Lightweight Aluminum Flywheel

T#:3768

Part#: 520-050-228

Ships in 4 Business Days

$ 630.00 USD

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Qty

$ 630.00 USD

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

The JB flywheel includes ignition trigger wheel.

Stock Flywheel Weight = 19.5lbs
JB Flywheel Weight = 8.0lbs

This item fits the following BMWs:
1987-1991 E30 BMW M3

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2002, E21 320i, E30 318i (M10) JB Racing Lightweight Aluminum Flywhee...

T#:3647

Part#: 520-110-215

Ships in 2 Business Days

$ 581.00 USD

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Qty

$ 581.00 USD

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can be rebuilt too with a new clutch contact surface.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

Stock Flywheel Weight = 16.5lbs
JB Flywheel Weight = 8lbs

This item fits the following BMWs:
1974-1976 2002 BMW 2002
1977-1983 E21 BMW 320i
1984-1985 E30 BMW 318i

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E39 540i 97-03 JB Racing Lightweight Aluminum Flywheel

T#:1339

Part#: 520-150-240

In Stock

$ 903.00 USD

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Qty

$ 903.00 USD

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

Stock Flywheel Weight = 33.0lbs
JB Flywheel Weight = 13.0lbs

This item fits the following BMWs:
1997-2003 E39 BMW 540i

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GSP Front Wheel Hub & Bearing Assembly - F01, F02, F06, F07, F10, F12...

T#:1196237

Part#: 270010

Ships in 2 Business Days

$ 115.99 USD

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$ 115.99 USD

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Replace your worn wheel hub assembly with this assembly

GSP Rear Axle Assembly - E32

T#:389692

Part#: NCV27528

Ships in 2 Business Days

$ 156.99 USD

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Qty

$ 156.99 USD

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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E32 BMW 735i 735iL 740i 740iL

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GSP Rear Axle Assembly - Left/Right - E39

T#:389707

Part#: NCV27504

Ships in 2 Business Days

$ 180.99 USD

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Qty

$ 180.99 USD

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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E39 BMW 540i M5

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E24 633/635CSi/M6, E28 535i/M5 JB Racing Lightweight Aluminum Flywhee...

T#:3770

Part#: 520-080-240

Ships in 8 Business Days

$ 630.00 USD

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Qty

$ 630.00 USD

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

Stock Flywheel Weight = 22.0lbs
JB Flywheel Weight = 8.5lbs

This flywheel includes the ignition trigger wheel.

This item fits the following BMWs:
1982-1987 E23 BMW 733i 735i
1982-1989 E24 BMW 633csi 635csi M6
1985-1988 E28 BMW 535i 535is M5

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GSP Front Wheel bearing & hub assembly - E60, E63, E64

T#:389675

Part#: 274210

Ships in 2 Business Days

$ 105.99 USD

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Qty

$ 105.99 USD

Add to Wish List

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E39 BMW 525i 528i 530i

E60 BMW 525i 525xi 528i 528i xDrive 530i 530xi 535i 535xi 545i 550i

E63 BMW 645Ci 650i

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GSP Rear Axle Assembly - Right - E46, Z4

T#:389701

Part#: NCV27516

Ships in 2 Business Days

$ 183.99 USD

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Qty

$ 183.99 USD

Add to Wish List

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E46 BMW M3

E85 BMW Z4M

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JB Racing Lightweight Aluminum Flywheel - E39 M5

T#:16606

Part#: 520-160-240

Ships in 8 Business Days

$ 903.00 USD

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Qty

$ 903.00 USD

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

Stock Flywheel Weight = 40.0lbs
JB Flywheel Weight = 13.0lbs

This item fits the following BMWs:
1999-2003 E39 BMW M5

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BMW E36 328i, Z3 2.8 JB Racing Lightweight Aluminum Flywheel ...

T#:3774

Part#: 520-030-240

In Stock

$ 714.00

This product was last offered at the strikethrough price on
06-08-2026

$ 652.99 USD

Limited Qty Sale

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Qty

$ 714.00

This product was last offered at the strikethrough price on
06-08-2026

$ 652.99 USD

Limited Qty Sale

Add to Wish List

BMW E36 328i, Z3 2.8 JB Racing Lightweight Aluminum Flywheel offers a significant performance upgrade by replacing the heavy stock steel flywheel with a much lighter aluminum version. This JB Racing flywheel is designed to deliver faster acceleration, improved throttle response, and enhanced overall performance for your BMW.

The modern stock flywheels are burdened with additional components meant to dampen vibrations, which unfortunately adds unnecessary weight. The JB Racing aluminum flywheel, weighing just 10.0 lbs compared to the stock 25.0 lbs, eliminates this excess mass, allowing more power to reach the wheels and reducing the energy wasted on spinning the flywheel. Engine builders prioritize lightweight flywheels when optimizing race engines for maximum efficiency, and the difference is especially noticeable in how quickly the engine revs and reaches its power band.

This JB Racing lightweight flywheel is a direct replacement for the stock flywheel and is compatible with the factory BMW organic clutch. This compatibility ensures that you can use standard replacement clutches, making maintenance simple and cost-effective. The flywheel can also be resurfaced for a fresh contact surface, so there’s no need to buy a new one when it’s time to replace the clutch.

While single-mass aluminum flywheels like this one may result in slightly more noise and vibration compared to dual-mass designs, this can be managed with heavier transmission oil and sprung hub clutches, such as the Sachs Performance clutch available through Turner Motorsport.

Faster acceleration: Reduces the rotational mass for quicker engine response.
Improved throttle response: Engine revs more freely and builds RPM faster.
Enhanced performance: More power delivered to the wheels for better driving dynamics.
Cost-effective maintenance: Compatible with factory BMW organic clutches and can be resurfaced.
Direct replacement: Easy upgrade with no modifications required.

Vehicle Compatibility:

1996-1999 E36 BMW 328i, 328is, 328ic
1997-1998 Z3 BMW Z3 2.8

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2002, 2002Tii JB Racing Lightweight Aluminum Flywheel 228mm

T#:3762

Part#: 520-100-228

In Stock

$ 581.00 USD

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Qty

$ 581.00 USD

Add to Wish List

Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can be rebuilt too with a new clutch contact surface.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

Stock Flywheel Weight = 16.5
JB Flywheel Weight = 8lbs

This item fits the following BMWs:
1968-1973 2002 BMW 2002 2002tii

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E36, E46 JB Racing Ultra-Light Racing Clutch/Flywheel Assembly ...

T#:340509

Part#: WCCLUTCH

Ships in 5 Business Days

Starting at $ 1,999.00 USD

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Starting at $ 1,999.00 USD

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The ultimate in a racing flywheel and clutch! This was developed for use in our E36 and E46 World Challenge Touring Cars. The combined weight of the clutch and flywheel is only 11lbs!!!

This multi-disc (2 or 3 disc setups) offer a minimal flywheel mass (enough to include a factory ring gear for the starter) and a small 5.5" clutch assembly rated to 500hp. By saving as much weight as possible less energy is used in simply spinning the flywheel/clutch assembly and that means a lot more power and torque is available at the drive wheels. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines and this is among the most advanced and lightest racing clutch kits available for your BMW race car.

The JB Ultra-Light Performance racing clutch is available in 2-disc or 3-disc setups. We used the 5.5"/140mm size in our Touring Cars but larger sizes are available too. This is a turn-key racing clutch and flywheel kit that you don't have to engineer or spec yourself. This is the same clutch setup we used when winning the 2003 and 2004 Touring Car Championships - the quality and performance is unquestionable. That series also employed standing starts at each race and this clutch setup performed flawlessly with nearly a full season of racing on them before needing a change.

JB Ultra-Light flywheels include:

precision CNC machined aluminum flywheel

zero-balanced up to 10,000 RPM

replaceable hardened steel clutch friction surface

Helicoil threaded inserts

high-strength grade 10.9 hardware

multi-disc racing clutch with Performance racing pressure plate

JB Racing throw-out bearing with custom bobbin
This is a true racing clutch and will not function as a street-able clutch at all. It behaves as an on/off switch with no slippage allowed. Extreme care must be used when driving on to trailers and around the paddock. But when driven correctly the life span of this clutch is amazing - we could get a full season of racing a 300hp M54 from this clutch setup including standing starts at every race! Replacement clutch components and flywheel rebuilding are available.

A properly adjusted clutch stop is required for use with this clutch kit.

Stock Flywheel + Clutch Weight = 45+lbs
JB Ultra-Light Flywheel & Clutch Weight = 11lbs

This item fits the following BMWs:
1992-1999 E36 BMW 325i 325is 328i 328is M3
1999-2006 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci (5-speed)
1997-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe
2003-2005 E85 BMW Z4 2.5i (5-speed)

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GSP Front Axle Assembly - Right - E53

T#:389722

Part#: NCV27502

Ships in 2 Business Days

$ 123.99 USD

Add to Wish List

Qty

$ 123.99 USD

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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E53 BMW X5

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E30 325e JB Racing Lightweight Aluminum Flywheel (Replaces Single-Mas...

T#:3763

Part#: 520-070-228

Ships in 5 Business Days

$ 630.00 USD

Add to Wish List

Qty

$ 630.00 USD

Add to Wish List

Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

The JB flywheel includes ignition trigger wheel.

This flywheel replaces the stock original single-mass flywheel and should only be used with the corresponding 'single-mass' clutch kit. According to BMW the single mass flywheel was installed in all 325e up to 5/86 production date but we have seen some later cars with a single-mass flywheel. The age of the car almost guarantees one or more clutch replacements and possibly a change to the original flywheel as well. You may not know which flywheel is currently installed until the flywheel cover or the transmission is removed.

Stock Flywheel Weight = 24.0lbs
JB Flywheel Weight = 8.5lbs

This item fits the following BMWs:
1984-1988 E30 BMW 325e 325es (with single mass flywheel)

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GSP Rear Axle Assembly - Left - E46, Z4

T#:389714

Part#: NCV27500

Ships in 2 Business Days

$ 178.99 USD

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Qty

$ 178.99 USD

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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E46 BMW M3

E85 BMW Z4M

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GSP Rear Axle Assembly - Left - E36

T#:389704

Part#: NCV27995

Ships in 2 Business Days

$ 125.99 USD

Add to Wish List

Qty

$ 125.99 USD

Add to Wish List

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E36 BMW 318is

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GSP Rear Axle Assembly - Right - E82, E88, E90

T#:389691

Part#: NCV27510

Ships in 2 Business Days

$ 109.99 USD

Add to Wish List

Qty

$ 109.99 USD

Add to Wish List

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E82/88 BMW 128i

E46 BMW 323i 325Ci 325i 325xi 328Ci 328i

E90/92 BMW 328i 328i xDrive

E85 BMW Z4

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GSP Rear Axle Assembly - Left - E46

T#:389723

Part#: NCV27920

Ships in 2 Business Days

$ 134.99 USD

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$ 134.99 USD

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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E46 BMW 330i

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E30 325e JB Racing Lightweight Aluminum Flywheel (Replaces Dual-Mass ...

T#:3749

Part#: 520-120-228

In Stock

$ 854.00 USD

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$ 854.00 USD

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

The JB flywheel includes ignition trigger wheel.

This flywheel replaces the stock original dual-mass flywheel and should only be used with the corresponding 'dual-mass' clutch kit. According to BMW the dual mass flywheel was installed in all 325/325e from 5/86 on but we have seen some later cars with a single-mass flywheel. The age of the car almost guarantees one or more clutch replacements and possibly a change to the original flywheel as well. You may not know which flywheel is currently installed until the flywheel cover or the transmission is removed.

Stock Flywheel Weight = 27.5lbs
JB Flywheel Weight = 10.0lbs

This item fits the following BMWs:
1984-1988 E30 BMW 325e 325es (with dual mass flywheel)

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GSP Front Axle Assembly - Left - E53

T#:389717

Part#: NCV27501

Ships in 2 Business Days

$ 103.99 USD

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$ 103.99 USD

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Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E53 BMW X5

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E34 535i JB Racing Lightweight Aluminum Flywheel

T#:647

Part#: 520-170-240

Ships in 1 Business Day

$ 714.00 USD

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Qty

$ 714.00 USD

Add to Wish List

Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can also be rebuilt with a new clutch contact surface - you don't have to buy a new flywheel.

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Z4 M HD Clutch and Flywheel Kit

T#:878

Part#: 520-010S-S873G

Ships in 9 Business Days

$ 1,488.61 USD

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Qty

$ 1,488.61 USD

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This lightweight aluminum flywheel w/ Heavy Duty "sprung-hub" clutch package is the best-engineered solution for E46 325 and 330 models with the 6-speed transmission, Z4 2.5/3.0, and Z4 M Roadster and M Coupe. Instead of picking a clutch from another car that may or may not work at all, the engineers at JB Racing have taken all of the guess work out of this upgrade and incorporated a Sachs sport sprung-hub clutch with the correct pressure plate and combined it with their most-popular aluminum lightweight flywheel. The Sachs HD clutch disc has a sprung hub to minimize noise and vibration and organic linings to give the feel and engagement of a stock clutch. Mixing and matching of the incorrect clutch, pressure plate, and flywheel components can lead to inconsistent engagement and feel -- why make your clutch feel worse?

In addition, the Sachs HD pressure plate will clamp with greater force -- allowing approximately 350 ft-lbs of torque, which makes it an obvious upgrade from the stock clutch kit. And with the aluminum flywheel weight savings is substantial over the stock dual-mass flywheel - which allows your motor to spool up faster and transmit more HP to the ground.

Because Sachs is an OE supplier to most German cars, replacement parts are just a phone call away. This kit uses the stock throw-out bearing (included in the price).

Z4 M Sport Clutch and Flywheel Applications:
2006-2008 E85 Z4, E86 Z4 Z4 M Roadster, Z4 M Coupe

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JB Racing Aluminum Lightweight Flywheel - E9X M3

T#:5774218

Part#: 520-210-215

Ships in 5 Business Days

$ 1,106.00 USD

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Qty

$ 1,106.00 USD

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

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GSP Axle Assembly - E90

T#:389713

Part#: NCV27916

In Stock

$ 140.99

This product was last offered at the strikethrough price on
05-03-2026

$ 122.99 USD

Limited Qty Sale

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Qty

$ 140.99

This product was last offered at the strikethrough price on
05-03-2026

$ 122.99 USD

Limited Qty Sale

Add to Wish List

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E90 BMW 325xi 330i 330xi

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GSP Front Axle Assembly - Left - E83

T#:389715

Part#: NCV27514

In Stock

$ 130.99

This product was last offered at the strikethrough price on
05-03-2026

$ 110.99 USD

Limited Qty Sale

Add to Wish List

Qty

$ 130.99

This product was last offered at the strikethrough price on
05-03-2026

$ 110.99 USD

Limited Qty Sale

Add to Wish List

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E83 BMW X3

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Density Line Transmission Mounts - 70D Track Density - BMW E9X M3, E6...

2X Entries Into Our F80 M3 Sweepstakes

T#:50731690

Part#: DLTME9XM370D

Ships in 2 Business Days

$ 25.00 USD

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Qty

$ 25.00 USD

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Unlike simple "inserts" that merely mask factory flaws, these are complete, re-engineered replacements.

GSP Front Axle Assembly - Left - E70, E71

T#:389710

Part#: NCV27540

Ships in 1 Business Day

$ 131.99 USD

Add to Wish List

Qty

$ 131.99 USD

Add to Wish List

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E70 BMW X5

E71 BMW X6

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GSP Front Axle Assembly - Right - E70, E71

T#:389706

Part#: NCV27541

Ships in 2 Business Days

$ 161.99 USD

Add to Wish List

Qty

$ 161.99 USD

Add to Wish List

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

E70 BMW X5

E71 BMW X6

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GSP Front Wheel bearing & hub assembly - E82, E88, E90, E91, E92, E93...

T#:389674

Part#: 274254

Ships in 2 Business Days

$ 184.99 USD

Add to Wish List

Qty

$ 184.99 USD

Add to Wish List

Since established in 2004, GSP North America has positioned itself as a leading supplier of New Axles in North America.GSP’s new axle program consistently offers the best application coverage, most SKU count, and more new numbers than any other competitors. GSP’s hub assembly program was introduced to North America market in 2010 and has grown into one the most trustable programs in US market.

This item fits the following BMWs:

2008+ E82 BMW 128i 135i 135is
2006-2011 E90 BMW 325i 328i 330i 335d 335i - Sedan
2006-2012 E91 BMW 328i - Wagon
2007-2013 E92 BMW 328i 335i 335is - Coupe
2007-2013 E93 BMW 328i 335i M3 - Convertible
2013+ E84 BMW X1 sDrive28i
2009+ Z4 BMW Z4 sDrive28i Z4 sDrive30i Z4 sDrive35i Z4 sDrive35is

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