BMW Drivetrain Parts for BMW 3 Series E46 (1999-2005)

OEM Rein Magnetic Differential Oil Drain Plug - M22x1.5 - Most BMW & ...

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T#:38890943

Part#: HWU0065

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$ 23.99 USD

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As components in the differential begin to wear, metal particles become loose in the diff fluid, which can lead to excess wear. This magnetic plug pulls these particles out of suspension, helping to reduce wear over time. Replaces BMW # 33117525064

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Driveshaft Center Support Bearing - E46, Z4

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T#:1435

Part#: 26127501257

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$ 35.99 USD

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Replacement center support bearing for the driveshaft. Often the cause of annoying vibrations and clunking noises during take-offs. This is the OEM aluminum bracket with bearing. Applications:
1999-2005 E46 323, 325, 328, 330 models with manual, automatic, or SMG transmission (not including 325xi or 330xi models)
2001-current Z4 2.5, Z4 3.0, Z4 3.0si with manual, automatic, or SMG transmission

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Rein Driveshaft Center Support Bearing

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T#:379700

Part#: 26121225071

In Stock

$ 30.98 USD

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Commonly referred to as "carrier bearing"

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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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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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 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 = 25.0lbs
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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JB Racing Single Mass Lightweight Aluminum Flywheel - 6-speed - E46 3...

For vehicles with a six-speed manual transmission

T#:3474

Part#: 520-190-240

Ships in 2 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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Genuine BMW M Performance Shift Lever - 25117527259

T#:348832

Part#: 25117527259

In Stock

$ 185.09 USD

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The performance shifter adds about a 20% reduction in shifter travel, helping to make the shifter seem tighter and much sportier.

Fits the following vehicles:

2000-2006 E46 BMW M3

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Transmission Mount - Priced Each

Two required per vehicle, this mount is from the E46 M3 and is an upgrade to your vehicle

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T#:361233

Part#: 22322282340

Ships in 2 Business Days

$ 110.99 USD

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Secure the rear of the transmission to the crossmember. Made in Germany.

Water Pump

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T#:392718

Part#: 11517838118

Back Ordered

$ 209.99 USD

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$ 209.99 USD

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Transmission Filter Kit

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T#:369365

Part#: A5S325Z

Ships in 3 Business Days

$ 42.99 USD

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$ 42.99 USD

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OEM Rein Automatic Transmission Filter Kit - E46 E39 E85

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T#:2935

Part#: 24341423376KIT

Ships in 3 Business Days

$ 43.99 USD

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$ 43.99 USD

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Automatic transmissions are reliable, shift smoothly, and can last without issue so long as they are properly maintained. Over time, the transmission fluid becomes thick and the filter becomes contaminated with small metal particles. This can cause excess wear, high transmission operating temperatures, and eventual failure. To prevent this we recommend changing your filter, fluid, and seals to ensure your transmission continues to operate flawlessly. We recommend filter and fluid changes every 50,000 miles. This filter fits A5S325Z automatic transmissions on BMW E46 323i 323ci 325i 325ci 328i 328ci 330i 330ci . E39 525i 528i 530i. E85 Z4 2.5i Z4 3.0i. This kit includes the transmission filter and gasket.

Kit Contents:

1 x 24341423376 - transmission filter
1 x 24101423380 - gasket for transmission filter

This item fits the following BMWs:
3/2000-2004 E46 BMW 323i 323ci 325i 325ci 330i 330ci
2003-2005 E46 BMW 325i with M56 engine
3/2001-2003 E39 BMW 525i 530i
2003-2006 E85 BMW Z4 2.5i Z3 3.0i

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OEM Rein CV Boot Repair Kit - Inner - E46 E53

For use on front axles

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T#:12272

Part#: 31607565315

Ships in 3 Business Days

$ 53.99

This product was last offered at the strikethrough price on
04-15-2026

$ 30.99 USD

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$ 30.99 USD

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This CV boot kit works on both front inner CV joints. Kit includes the following parts;

Boot
Grease
Attaching clamps

BMW Repair Kit Bellows, Interior
This item fits the following BMW Chassis:
E53 48IS,E46,E53 X5

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Rein Automatic Transmission Oil Pan Gasket - E39, E46, Z4

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T#:12451

Part#: 24341423376

Ships in 3 Business Days

$ 12.99 USD

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$ 12.99 USD

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OIL FILTER:241030

Differential Oil Drain Plug

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T#:27405453

Part#: 33117525064

In Stock

$ 14.99

This product was last offered at the strikethrough price on
08-03-2026

$ 9.99 USD

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$ 9.99 USD

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Transmission Filter

For sedan models with A5S325Z transmission and production date up to 03/2002. For touri... For vehicles with A5S325Z transmission only, up to 03/2003 production date For vehicles with A5S325Z transmission only, from 03/2000 production date

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T#:350821

Part#: 24341423376

In Stock

$ 24.47

This product was last offered at the strikethrough price on
05-02-2026

$ 19.99 USD

Limited Qty Sale

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$ 24.47

This product was last offered at the strikethrough price on
05-02-2026

$ 19.99 USD

Limited Qty Sale

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BMW Aluminum Bolt

T#:46478545

Part#: 23000417164S

In Stock

$ 7.99 USD

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$ 7.99 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.

Rein Transmission Input Shaft Seal - E31, E34, E39, E46, E52 ...

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T#:363449

Part#: 23127501328

In Stock

$ 16.99 USD

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A common source of leaks with higher mileage, this seal should be replaced any time a leak is spotted to prevent much more catastrophic repairs.

E46 M3 JB Racing Ultra-Light Racing Clutch/Flywheel Assembly ...

T#:340510

Part#: WCCLUTCH-E46M3

Ships in 5 Business Days

Starting at $ 2,015.99 USD

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Starting at $ 2,015.99 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 500ft-lbs. 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. A 3-disc setup is less susceptible to heat and will have a higher torque capacity. On our M54-powered 325i Touring Cars (approximately 300hp) we used the 5.5"/140mm 2-disc configuration. The 5.5" clutch was a perfect blend of performance and durability. It wasn't too small to suffer from high temperatures and wasn't too large that it couldn't be slipped (slipping prevents damage to other components). 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

replaceable hardened steel clutch friction surface

Helicoil threaded inserts

high-strength grade 10.9 hardware

multi-disc Sachs or Powertrain Technology racing clutch with 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:
2001-2006 E46 BMW M3

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E46 M3 Dual Ceramic Clutch Kit - With Single Mass Flywheel

T#:24610565

Part#: MR-006-054

Special Order: No Guaranteed ETA

$ 1,699.99 USD

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$ 1,699.99 USD

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Rated for upwards of 650 ft/lbs, this multi-plate (Twin Disc) Clutch is sure to have the clamping force your E46 M3 needs. Equipped with dual 184mm ceramic discs, DKM (Der Kupplungmeister) has mastered the art of packing loads of clamping force into a small space. Kit Includes: 184mm Ceramic Clutch Discs - 2 Flywheel - 1 Pressure Plate - 1 All Hardware Throwout Bearing - 1 Clutch Alignment Tool - 1

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E46 M3 Dual Ceramic Clutch Kit - With Single Mass Flywheel

T#:24610569

Part#: MRX-006-005

Special Order: No Guaranteed ETA

$ 1,799.99 USD

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$ 1,799.99 USD

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Rated for upwards of 850 ft/lbs, this multi-plate (Twin Disc) Clutch is sure to have the clamping force your E46 M3 needs. Equipped with dual 215mm ceramic discs, DKM (Der Kupplungmeister) has mastered the art of packing loads of clamping force into a small space. Kit Includes: 215mm Ceramic Clutch Discs - 2 Flywheel - 1 Pressure Plate - 1 All Hardware Throwout Bearing - 1 Clutch Alignment Tool - 1

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Rein Differential Drain Plug Gasket

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T#:19654

Part#: 07119963355

Ships in 3 Business Days

$ 2.03 USD

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$ 2.03 USD

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GASKET RING for various sensors and seals.

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

T#:40748575

Part#: 520010240SGA

Ships on Sep 8, 2026

$ 868.00 USD

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$ 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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ACM Automatic Transmission Cooler - E46 w/ Auto Trans

T#:374226

Part#: 17227505826

Back Ordered

$ 119.99 USD

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$ 119.99 USD

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Rein Magnetic Transmission Drain Plug

Fill and drain plug for vehicles with transmission code GS5X37BZ and production date fr... For vehicles with production date from 03/2003

T#:53785537

Part#: HWU0117

Back Ordered

$ 16.99 USD

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$ 16.99 USD

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Magnetic Rein Transmission Plug Features Aluminum Construction with OE Dimensions and Threading. Magnetic Tip for Upgrade over Stock. Lightweight and Durable Construction Designed to Interface Perfectly with Modern Alloy Gear Housings

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BMW Drivetrain Parts for BMW 3 Series E46 (1999-2005)

Sub-Categories

OEM Rein Magnetic Differential Oil Drain Plug - M22x1.5 - Most BMW & ...

Driveshaft Center Support Bearing - E46, Z4

Rein Driveshaft Center Support Bearing

E46 M3 6MT JB Racing Lightweight Aluminum Flywheel

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

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

Genuine BMW M Performance Shift Lever - 25117527259

Transmission Mount - Priced Each

Water Pump

Transmission Filter Kit

OEM Rein Automatic Transmission Filter Kit - E46 E39 E85

OEM Rein CV Boot Repair Kit - Inner - E46 E53

Rein Automatic Transmission Oil Pan Gasket - E39, E46, Z4

Differential Oil Drain Plug

Transmission Filter

BMW Aluminum Bolt

Rein Transmission Input Shaft Seal - E31, E34, E39, E46, E52 ...

E46 M3 JB Racing Ultra-Light Racing Clutch/Flywheel Assembly ...

E46 M3 Dual Ceramic Clutch Kit - With Single Mass Flywheel

E46 M3 Dual Ceramic Clutch Kit - With Single Mass Flywheel

Rein Differential Drain Plug Gasket

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

ACM Automatic Transmission Cooler - E46 w/ Auto Trans

Rein Magnetic Transmission Drain Plug

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