BMW Performance Clutch Kits & Parts for BMW Z Series E85/6 (2003-2008)

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These heavy-duty clutch kits use aluminum lightweight flywheels with sport clutch components to give your clutch the grip and clamping force it needs to cope with high torque upgrades. Our kits were developed through racing programs by companies affiliated with our own race team - JB Racing, Sachs Sport, OS Giken, and UUC Motorwerks. JB Racing is the leader in aluminum lightweight flywheel upgrades. They are direct replacements for the stock dual-mass flywheels with steel contact surfaces and computer balanced to 14,000 RPM. JB has partnered with Sachs to spec sport/HD clutch discs and pressure plates that work seamlessly with their aluminum flywheels. The result is a clutch/flywheel upgrade package that functions a lot like the original clutch combo with near-stock levels of effort and engangement but with a much higher torque capacity. Don't let the clutch be your weak link in a highly tuned car!

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Clutch Cylinder Refresh Kit

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T#:5416751

Part#: 21526773670TMSKT

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Sale - Save 7% $ 311.99

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05-03-2026

$ 289.49 USD

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$ 289.49 USD

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Includes master and slave cylinder, hardware and lines including the Exact-Fit Stainless Steel Clutch Line! A leaking clutch cylinder often feels like a failing clutch or a problematic transmission, this kit includes everything needed to not only replace but upgrade your clutch hydraulic system!

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JB Racing Lightweight Aluminum Flywheel & Clutch Kit - N52

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T#:555404

Part#: 21207587368KT

In Stock

$ 1,112.99

This product was last offered at the strikethrough price on
05-06-2026

$ 1,044.99 USD

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A lightweight aluminum flywheel is a great way to increase throttle response and free up horsepower by reducing drivetrain loss. Factory flywheels are built to minimize engine and transmission vibrations, making them heavier and requiring more energy to make them spin. An aluminum flywheel can save lots of weight over the stock steel unit - sometimes over 50%. While the dampening effect of the stock flywheel is reduced, most enthusiasts would agree that the increase in performance is well worth it. In addition, the lighter flywheel allows the engine to spin more freely, improving throttle response.

This JB Racing lightweight aluminum flywheel kit and is designed to be used with the included factory clutch, making replacement and service easy and inexpensive, especially compared to specialized racing clutches. It also preserves the driveability of your car on the street, and enthusiasts tolerant of a mild to moderate NVH increase will be especially taken with this setup. In addition, the JB Racing flywheel can be easily rebuilt with a new clutch contact surface, allowing you to enjoy faster revs and superior response for many years to come.

Stock Flywheel Weight: 24-31 lbs.

JB Racing Lightweight Aluminum Flywheel: 12 lbs.

This item fits the following BMW Chassis:
E61/1, E82/88, E9x, Z4

Fits the follow engines:
N52 3.0L

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

T#:2801

Part#: 520-200-240

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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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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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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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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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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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Single Mass Flywheel Conversion Kit - BMW E82/88 E9X N52 3.0L ...

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T#:24112776

Part#: E9XN52SMFKT

Ships in 3 Business Days

$ 1,691.99

This product was last offered at the strikethrough price on
08-13-2026

$ 1,666.99 USD

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$ 1,666.99 USD

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Dual-mass flywheels allow for fluid-feeling clutch engagements and offer a more luxurious feel than single-mass flywheels. However, with these benefits come significant drawbacks. Dual-mass flywheels are expensive, with the cost of replacement often being double or triple that of converting to a single-mass flywheel. Single-mass flywheels can be resurfaced, eliminating the need to replace them with the next clutch service, something that is not recommended with dual-mass flywheels as they contain a rubber section that is more failure-prone in high-mileage applications. Single-mass flywheels lack the complexity of dual-mass flywheels, making them inherently more reliable. Dual-mass flywheels contain a rubber damper or hub that will, like all rubber components, wear out with time. Also, Many enthusiasts prefer to eliminate BMW's "Self Adjusting Clutch", which has been known to provide an unpredictable, inconsistent engagement point. Valeo's conversion kit has been designed to maintain nearly identical clutch and flywheel weight, ideal for keeping the clutch quiet and easy to drive. Kit contents: Single-mass flywheel Non-Self Adjusting Clutch and pressure plate Throw out bearing Pressure plate bolts Flywheel bolts Transmission service kit Guide tube Input and output shaft seals Pilot bearing Clutch fork pivot pin Mounting bolt set

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Clutch cylinder refresh kit

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T#:15677559

Part#: 21526774274-KT

Ships in 7 Business Days

$ 352.99 USD

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$ 352.99 USD

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A leaking clutch cylinder often feels like a failing clutch or a problematic transmission, this kit includes everything needed to not only replace but upgrade your clutch hydraulic system!

BMW Aluminum Bolt

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T#:46478545

Part#: 23000417164S

In Stock

Sale - Save 15% $ 7.99

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

$ 6.76 USD

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Sale - Save 15%

$ 7.99

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

$ 6.76 USD

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This is a single-use bolt and should be replaced every time it’s removed. Don’t let a major repair come to a halt because you’re missing the proper hardware.

ClutchMasters Complete 8 Puck Clutch Kit W/ Aluminum Flywheel -FX400 ...

For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft

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T#:41931258

Part#: FW-140-AL-400TKT

Ships in 3 Business Days

$ 1,276.99 USD

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$ 1,276.99 USD

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The ClutchMasters FX400 Stage 4 with Aluminum Flywheel is the ultimate solution for BMW enthusiasts pushing the envelope of performance and reliability on and off the track. Rated for 170% power increase over stock!

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ClutchMasters FX400 Stage 4 Complete 6 Puck Clutch Kit W/ Aluminum Fl...

For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft

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T#:41931260

Part#: FW140AL4006TKT

Ships in 3 Business Days

$ 1,276.99 USD

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$ 1,276.99 USD

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For serious drivers looking to upgrade their BMW’s clutch system for extreme power and precision, the ClutchMasters FX400 Stage 4 with Aluminum Flywheel delivers uncompromising performance, reliability, and control with the ability to handle up to a 170% increase in power!

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ClutchMasters Complete Clutch Kit W/ Aluminum Flywheel - FX250 Stage ...

For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft

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T#:41931253

Part#: FW-140-AL-250TKT

Ships in 7 Business Days

$ 1,226.99 USD

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$ 1,226.99 USD

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Whether you're upgrading a street-tuned E46, an F-series M car, or a track-prepped BMW project, the ClutchMasters FX250 Stage 2+ with Aluminum Flywheel offers the ideal balance of drivability and performance to meet your demands.

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ClutchMasters Complete Clutch Kit W/ Aluminum Flywheel - FX100 Stage ...

For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft

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T#:41897512

Part#: FW-140-AL-100TKT

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$ 1,127.99 USD

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$ 1,127.99 USD

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For BMW drivers looking to retain factory-like driving dynamics while enjoying upgraded clutch durability and responsiveness, the ClutchMasters FX100 Stage 1 w/ Aluminum Flywheel – from Turner Motorsport is the smart, balanced choice.

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ClutchMasters Complete Clutch Kit W/ Aluminum Flywheel - FX300 Stage ...

For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft

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T#:41931254

Part#: FW-140-AL-300TKT

Ships in 7 Business Days

$ 1,336.99 USD

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$ 1,336.99 USD

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For BMW drivers who demand more from every gear change, this clutch and flywheel kit is the proven upgrade that delivers power, precision, and reliability in one comprehensive package.

ClutchMasters Complete Clutch Kit W/ Aluminum Flywheel - FX200 Stage ...

For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft

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T#:41897517

Part#: FW-140-AL-200TKT

Ships in 7 Business Days

$ 1,336.99 USD

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$ 1,336.99 USD

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The smart choice for BMW enthusiasts looking to step up clutch performance for the street or occasional track use, with confidence in every shift.

ClutchMasters Complete Clutch Kit W/ Aluminum Flywheel - FX350 Stage ...

For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft

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T#:41931256

Part#: FW-140-AL-350TKT

In Stock

$ 1,276.99 USD

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For BMW owners seeking a clutch that can handle serious power without sacrificing driveability, the ClutchMasters FX350 Stage 3+ with Aluminum Flywheel delivers a perfect balance of performance, reliability, and control.

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JB Racing Lightweight Steel Flywheel - Grand-Am Legal - E46, MZ3, Z4 ...

T#:40748575

Part#: 520010240SGA

Ships on Sep 28, 2026

$ 868.00 USD

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This lightened steel flywheel is specifically designed (and approved) for use in Grand-Am road racing but can also be used as a mild street upgrade if a full aluminum lightweight flywheel is not called for. The Grand-Am flywheel is 20% lighter than stock to meet the rules for the GS and ST classes.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. A lightweight flywheel does away with the dual mass design and its additional mass so 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. The engine revs much 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.

Grand-Am approved this flywheel to be used with a factory E36 M3 clutch. This opens up a lot of clutch and pressure plate options but we typically used this with a stock Sachs OEM clutch kit. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches.

Lightweight 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.

If being used on a 330i 6-speed or Z4 6-speed an additional pilot bearing hub is required. Select your appropriate model and transmission from the list below.

Stock Flywheel Weight = 25.0lbs
JB Flywheel Weight = 20.0lbs

This item fits the following BMWs:
2001-2002 E46 BMW 330i 330ci 5-speed
2003-2006 E46 BMW 330i 330ci 6-speed
2001-2006 E46 BMW M3
1998-2002 Z3 BMW Z3 M Roadster M Coupe
2003-2005 E85 BMW Z4 2.5i Z4 3.0i

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BMW Performance Clutch Kits & Parts for BMW Z Series E85/6 (2003-2008)

Sub-Categories

Clutch Cylinder Refresh Kit

JB Racing Lightweight Aluminum Flywheel & Clutch Kit - N52

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

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

Z4 M HD Clutch and Flywheel Kit

Single Mass Flywheel Conversion Kit - BMW E82/88 E9X N52 3.0L ...

Clutch cylinder refresh kit

BMW Aluminum Bolt

ClutchMasters Complete 8 Puck Clutch Kit W/ Aluminum Flywheel -FX400 ...

ClutchMasters FX400 Stage 4 Complete 6 Puck Clutch Kit W/ Aluminum Fl...

ClutchMasters Complete Clutch Kit W/ Aluminum Flywheel - FX250 Stage ...

ClutchMasters Complete Clutch Kit W/ Aluminum Flywheel - FX100 Stage ...

ClutchMasters Complete Clutch Kit W/ Aluminum Flywheel - FX300 Stage ...

ClutchMasters Complete Clutch Kit W/ Aluminum Flywheel - FX200 Stage ...

ClutchMasters Complete Clutch Kit W/ Aluminum Flywheel - FX350 Stage ...

JB Racing Lightweight Steel Flywheel - Grand-Am Legal - E46, MZ3, Z4 ...

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