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

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Building your perfect BMW is more than just adding horsepower and stiff suspension. Your drivetrain needs attention in order to deliver power effectively. Most BMWs feature comfortable clutch discs, heavy flywheels, long shifter throws, and open differentials. The drivetrain transmits power to the wheels, but can also be a source of power loss when it is designed for comfort rather than performance. Everything on this page will help you improve your power delivery and driving experience by providing custom Limited Slip Differentials, Short Shift Conversions, Performance Clutch Discs, Lightweight Flywheels, and anything else your BMW needs to be the perfect driving experience.

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

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T#:38890943

Part#: HWU0065

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$ 22.79 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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$ 34.19 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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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

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$ 39.89 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

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Sale - Save 5% $ 209.99

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$ 199.49 USD

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OEM Rein Automatic Transmission Filter Kit - E46 E39 E85

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T#:2935

Part#: 24341423376KIT

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$ 41.79 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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Transmission Filter Kit

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T#:369365

Part#: A5S325Z

Ships on Aug 24, 2026

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$ 40.83 USD

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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

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04-15-2026

$ 29.44 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

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$ 12.34 USD

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OIL FILTER:241030

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

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$ 24.47

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

$ 19.99 USD

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$ 24.47

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05-02-2026

$ 19.99 USD

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Differential Oil Drain Plug

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T#:27405453

Part#: 33117525064

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05-21-2026

$ 9.11 USD

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Rein Driveshaft Center Support Bearing

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T#:379700

Part#: 26121225071

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$ 12.83 USD

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Commonly referred to as "carrier bearing"

BMW Aluminum Bolt

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T#:46478545

Part#: 23000417164S

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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

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$ 16.14 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.

Rein Differential Drain Plug Gasket

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T#:19654

Part#: 07119963355

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Sale - Save 5% $ 2.03

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$ 1.93 USD

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GASKET RING for various sensors and seals.

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

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T#:53785537

Part#: HWU0117

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$ 16.09 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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OEM Rein CV Boot Repair Kit - Outer - E46 325xi 330xi, E53

For use on front axles

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T#:369581

Part#: 31607507402

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$ 12.34 USD

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This CV boot kit works on both front outer CV joints. Kit includes the following parts: Boot Grease Attaching clamps

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