BMW Drivetrain Parts for BMW E30 M3 S14 2.3L

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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 Axle Shaft Impact Force Screw Adapter
Bav Auto Axle Shaft Impact Force Screw Adapter
Bav Auto Tools - Corporate Logo
T#:580429
Part#: B8800122
In Stock
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$ 37.99 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 Differential, Transfer Case, Transmission Oil-Pan Wrench
Bav Auto Differential, Transfer Case, Transmission Oil-Pan Wrench ...
Bav Auto Tools - Corporate Logo
T#:580353
Part#: B8800025
In Stock
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$ 23.99 USD
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Sale - Save 25% $ 31.99
$ 23.99 USD
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The proper size for removing BMW drain plugs.
Differential Fluid Extraction Adapter
Differential Fluid Extraction Adapter
Bav Auto Tools - Corporate Logo
T#:578659
Part#: B3300000
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$ 20.99 USD
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$ 20.99 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 Fluid Transfer Pump - 1 Liter - Viton Seals
Bav Auto Fluid Transfer Pump - 1 Liter - Viton Seals
Bav Auto Tools - Corporate Logo
T#:580335
Part#: B8800003
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$ 53.09 USD
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Sale - Save 10% $ 58.99
$ 53.09 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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Bav Auto Transmission/Differential Drain Plug Socket Set
Bav Auto Transmission/Differential Drain Plug Socket Set
Bav Auto Tools - Corporate Logo
T#:580446
Part#: B8800141
In Stock
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$ 26.99 USD
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Sale - Save 25% $ 35.99
$ 26.99 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
Bav Auto Fluid Transfer Pump - 200ml - Viton Seals
Bav Auto Fluid Transfer Pump - 200ml - Viton Seals
Bav Auto Tools - Corporate Logo
T#:580336
Part#: B8800004
In Stock
Sale - Save 15% $ 37.99
$ 32.29 USD
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Sale - Save 15% $ 37.99
$ 32.29 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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Clutch Slave Cylinder Bleeder Tool
Clutch Slave Cylinder Bleeder Tool
Bav Auto Tools - Corporate Logo
T#:585675
Part#: CBTTOOL
In Stock
Sale - Save 17% $ 87.99
$ 73.20 USD
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Sale - Save 17% $ 87.99
$ 73.20 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 Wheel Hub and Rotor Grinding Kit
Bav Auto Wheel Hub and Rotor Grinding Kit
Bav Auto Tools - Corporate Logo
T#:580437
Part#: B8800132
Ships on Aug 11, 2025
Sale - Save 5% $ 46.99
$ 44.64 USD
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Sale - Save 5% $ 46.99
$ 44.64 USD
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Used to remove corrosion and ensure brake rotors, wheel spacers, etc sit flush on your hubs
Polyurethane Differential Bushings - E30/Z3
Polyurethane Differential Bushings - E30/Z3
Revshift - Corporate Logo
T#:1105908
Part#: PDB-E3095A
Ships in 7 Business Days
$ 49.99 USD
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$ 49.99 USD
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Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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Bav Auto 36MM 12 Point Socket - 1/2" Drive
Bav Auto 36MM 12 Point Socket - 1/2" Drive
Bav Auto Tools - Corporate Logo
T#:580421
Part#: B8800114
In Stock
$ 28.99 USD
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$ 28.99 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.
Revshift Differential Studs And Spacers Kit - 12mm - BMW E30
Revshift Differential Studs And Spacers Kit - 12mm - BMW E30 ...
Revshift - Corporate Logo
T#:1105928
Part#: DSS-12
Ships in 7 Business Days
$ 39.99 USD
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$ 39.99 USD
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These studs and spacers mount the differential 12mm from the subframe. They are intended to be used with our 12mm offset subframe bushings. When raising the subframe, the spacers allow the differential to mount in the stock location which maintains proper pinion angle. The studs keep the spacers in place making for a quick and easy installation. The spacers are made from 6061 aluminum. The class 12.9 studs have hex key reliefs. We recommend using loctite during installation. Flange nuts are included. Revshift Performance Engineering is a high-performance parts manufacturer with a focus on quality, reliability, and performance. Utilizing high-precision machining technologies and their very own Polyurethane Manufacturing Department, every Revshift product is designed, manufactured, and tested in-house at their Detroit, Michigan facility.
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Chase Bays Clutch Feed Adapter - E30 E36 E46
Chase Bays Clutch Feed Adapter - E30 E36 E46
Chase Bays - Corporate Logo
T#:400149
Part#: CB-U-CMC4BBE
Ships in 8 Business Days
$ 44.99 USD
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$ 44.99 USD
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Used when using the brake booster eliminator kits on vehicles that use the brake fluid reservoir as the clutch fluid reservoir also.
Bav Auto Hub Puller Slide Hammer Adapter
Bav Auto Hub Puller Slide Hammer Adapter
Bav Auto Tools - Corporate Logo
T#:580428
Part#: B8800121
In Stock
Sale - Save 15% $ 20.99
$ 17.84 USD
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Sale - Save 15% $ 20.99
$ 17.84 USD
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Necessary in order to use Bav Auto's Hub Adapter/Puller (B8800120) . 5/8" x 18T UNF thread.
Bav Auto Transmission 17mm Drain Plug Wrench - Manual Transmission
Bav Auto Transmission 17mm Drain Plug Wrench - Manual Transmission ...
Bav Auto Tools - Corporate Logo
T#:580447
Part#: B8800142
In Stock
$ 18.99 USD
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$ 18.99 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.

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