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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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Bav Auto Differential, Transfer Case, Transmission Oil-Pan Wrench ...

T#:580353

Part#: B8800025

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

$ 24.74 USD

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$ 24.74 USD

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The proper size for removing BMW drain plugs.

Differential Fluid Extraction Adapter

T#:578659

Part#: B3300000

In Stock

Sale - Save 3% $ 21.99

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

$ 21.33 USD

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$ 21.99

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$ 21.33 USD

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Differential Fluid Extraction Adapter is an essential tool for efficiently draining and refilling differential fluid, ensuring your vehicle's differential system remains in optimal condition. Designed to work with most extraction pumps, this adapter simplifies maintenance tasks, making it easier to service your differential without the mess or hassle of traditional methods.

Efficient fluid extraction: Allows for quick and clean draining of differential fluid.
Versatile compatibility: Works with most extraction pumps, offering flexibility for various vehicle makes and models.
Hassle-free maintenance: Simplifies the process of refilling and draining differential fluid, reducing time and effort.
Durable construction: Built from high-quality materials to withstand frequent use and harsh conditions.
Easy installation: Designed for a secure fit and easy attachment to extraction pumps.

This Differential Fluid Extraction Adapter is a must-have for any vehicle owner looking to maintain the longevity and performance of their differential system.

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Bav Auto Transmission/Differential Drain Plug Socket Set

T#:580446

Part#: B8800141

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Sale - Save 25% $ 36.99

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

$ 27.74 USD

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$ 36.99

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$ 27.74 USD

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Drain plug socket set. Set of 3 hex-head sockets make removal of transmission and differential drain plugs so much easier. Includes 10mm, 14mm and 17mm sizes. 3/8" drive

Clutch Slave Cylinder Bleeder Tool

T#:585675

Part#: CBTTOOL

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Sale - Save 22% $ 89.99

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

$ 70.42 USD

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Sale - Save 22%

$ 89.99

This product was last offered at the strikethrough price on
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$ 70.42 USD

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Bleed your slave cylinder with confidence using this clutch slave cylinder bleeder tool. Get the job done right the first time and assure that your clutch pressure is appropriate. Use the tools' adjustable piston rod to apply pressure to the cylinders' piston rod, making the process much simpler.

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Bav Auto Fluid Transfer Pump - 200ml - Viton Seals

T#:580336

Part#: B8800004

In Stock

Sale - Save 25% $ 38.99

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

$ 29.24 USD

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$ 29.24 USD

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Use this high-quality fluid transfer pump to remove old fluid from power steering reservoirs, brake fluid reservoirs or differentials that do not have drain plugs (as on many later model BMWs), or to fill transmissions, differentials, and any other assemblies when changing the fluids.

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Bav Auto Wheel Hub and Rotor Grinding Kit

T#:580437

Part#: B8800132

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Sale - Save 10% $ 47.99

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05-03-2026

$ 43.19 USD

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Used to remove corrosion and ensure brake rotors, wheel spacers, etc sit flush on your hubs

Bav Auto Axle Shaft Impact Force Screw Adapter

T#:580429

Part#: B8800122

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Sale - Save 10% $ 40.99

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

$ 36.89 USD

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$ 40.99

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$ 36.89 USD

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For use with B8800120 (Hub Puller Adapter) as an impact driver to aid in removal of stuck CV axle shafts.

Bav Auto Fluid Transfer Pump - 1 Liter - Viton Seals

T#:580335

Part#: B8800003

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Sale - Save 15% $ 60.99

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

$ 51.84 USD

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$ 60.99

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$ 51.84 USD

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Use this high-quality fluid transfer pump to remove old fluid from power steering reservoirs, brake fluid reservoirs or differentials that do not have drain plugs (as on many later model BMWs), or to fill transmissions, differentials, and any other assemblies when changing the fluids. For draining differentials we recommend using the Bavarian Autosport adapter part # B3300000.

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Performance Clutch Pin - Grooved

T#:5135654

Part#: AGA-CPP-223-328

Ships in 6 Business Days

$ 45.99 USD

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$ 45.99 USD

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An essential upgrade for every manual transmission equipped BMW!

Bav Auto 36MM 12 Point Socket - 1/2" Drive

T#:580421

Part#: B8800114

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

$ 22.49 USD

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$ 22.49 USD

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This is a thin-walled 1/2" drive 36mm impact socket - useful in removing or installing wheel bearing and axle nuts on several BMW models.

Bav Auto Transmission 17mm Drain Plug Wrench - Manual Transmission ...

T#:580447

Part#: B8800142

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Sale - Save 25% $ 19.99

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

$ 14.99 USD

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$ 14.99 USD

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Makes changing your transmission fluid an easy task. 1/2 " drive, for use in BMWs with 17mm female allen transmission drain plugs.

Bav Auto Hub Puller Slide Hammer Adapter

T#:580428

Part#: B8800121

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Sale - Save 18% $ 21.99

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

$ 17.99 USD

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$ 17.99 USD

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Necessary in order to use Bav Auto's Hub Adapter/Puller (B8800120) . 5/8" x 18T UNF thread.

Upgraded SMG Pump

T#:8677192

Part#: 30.108

In Stock

$ 799.99

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

$ 747.99 USD

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$ 799.99

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$ 747.99 USD

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Custom designed SMG pump with a increased output for faster system priming and longer life then the factory pump.

AGA Tools 8HP Park Release Tool

T#:26404886

Part#: AGA-8HP-PRT

Ships in 7 Business Days

$ 489.00 USD

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$ 489.00 USD

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