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BMW Drivetrain Parts

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 Tools - Corporate Logo
T#:580353
Part#: B8800025
In Stock
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05-03-2026

$ 24.74 USD
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The proper size for removing BMW drain plugs.
Bav Auto Tools - Corporate Logo
T#:578659
Part#: B3300000
In Stock
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05-03-2026

$ 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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Bavarian Autosport - Corporate Logo
T#:1777897
Part#: B2300001KT
In Stock
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05-03-2026

$ 21.59 USD
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$ 26.99

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$ 21.59 USD
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BMW Clutch Stop

Improve your shifting experience with the BMW Clutch Stop. This adjustable clutch stop is designed to install beneath the clutch pedal, allowing you to set the precise stopping point just after the clutch disengages. Once adjusted, you can achieve consistent, smooth, and efficient shifts every time, saving valuable time and effort.

Benefits:

  • Enhances shifting precision and consistency
  • Saves time with smooth and fast shifts
  • Adjustable design allows for personalized settings

Upgrade your BMW's shifting performance with the BMW Clutch Stop for a more enjoyable driving experience.

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Bav Auto Tools - Corporate Logo
T#:580411
Part#: B8800102
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$ 104.39 USD
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Thin sockets included in this Bav Auto puller kit thread on to the axle shaft and pull the splined axle shaft into the hub. Can also be used to press wheel bearings onto the spindle shaft.

Bav Auto Tools - Corporate Logo
T#:580446
Part#: B8800141
In Stock
Sale - Save 25% $ 36.99

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$ 27.74 USD
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$ 36.99

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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
Bavarian Autosport - Corporate Logo
T#:639802
Part#: 26117511454
In Stock
Sale - Save 15% $ 49.99

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

$ 42.49 USD
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This replacement flex disc (aka: the guibo) is a vibration dampener mounted on the back of the transmission which connects to the driveshaft. When it has worn, it produces a terrible vibration throughout the car. It's especially noticeable at low speeds and when starting from a standstill. Oil leaking from the back of the transmission will significantly reduce its life. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Bavarian Autosport - Corporate Logo
T#:639806
Part#: 24117593565
In Stock
Sale - Save 20% $ 39.99

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05-03-2026

$ 31.99 USD
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$ 39.99

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$ 31.99 USD
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Remember to service your transmission at the recommended intervals to increase your transmission's life span and reliability! From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Bremmen Automatic Transmission Pan With Transmission Filter - F22 F30...
For GA8HP70, GA8HP76, GA8HP75, GA8HP51, GA8HP50, or GA8HP45Z automatic transmissions - Does not fit GA8P Hybrid Transmissions
Bavarian Autosport - Corporate Logo
T#:579886
Part#: 55182
In Stock
Sale - Save 17% $ 138.99

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

$ 115.99 USD
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$ 138.99

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$ 115.99 USD
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GA8HP 8 speed automatic transmission. 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 item fits the following BMWs: E71,E89 Z4,F06,F10,F12,F13,F15,F16,F22,F25 X3,F26 X4,F30,F31,F32,F33,F34,F36
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Bav Auto Tools - Corporate Logo
T#:585675
Part#: CBTTOOL
In Stock
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This product was last offered at the strikethrough price on
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$ 70.42 USD
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$ 89.99

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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 Tools - Corporate Logo
T#:580336
Part#: B8800004
In Stock
Sale - Save 25% $ 38.99

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05-03-2026

$ 29.24 USD
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$ 38.99

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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 Tools - Corporate Logo
T#:580437
Part#: B8800132
In Stock
Sale - Save 10% $ 47.99

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$ 43.19 USD
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$ 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 Tools - Corporate Logo
T#:580429
Part#: B8800122
In Stock
Sale - Save 10% $ 40.99

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$ 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 Tools - Corporate Logo
T#:580335
Part#: B8800003
In Stock
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This product was last offered at the strikethrough price on
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$ 51.84 USD
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$ 60.99

This product was last offered at the strikethrough price on
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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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Bav Auto Tools - Corporate Logo
T#:580367
Part#: B8800043
In Stock
Sale - Save 15% $ 37.99

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$ 32.29 USD
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$ 37.99

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$ 32.29 USD
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Use this tool to press the splined axle end out of the wheel flange or hub on rear-wheel drive and front-wheel drive 4 LUG BMWs and MINIs. This tool is also used to pull the front wheel bearing hub on 2-wheel drive BMW models with sealed bearing and hub assemblies.
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Bav Auto Tools - Corporate Logo
T#:580427
Part#: B8800120
In Stock
Sale - Save 10% $ 109.99

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$ 98.99 USD
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$ 109.99

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For use with B8800122 impact driver to remove stuck CV axle shafts.

Bav Auto Tools - Corporate Logo
T#:580333
Part#: B8800001
In Stock
Sale - Save 15% $ 171.99

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$ 146.19 USD
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$ 171.99

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$ 146.19 USD
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Change your oil without getting underneath the vehicle! This oil extractor pulls the oil out of your engine through the dip stick tube.

Bavarian Autosport - Corporate Logo
T#:1135777
Part#: 26112226527
In Stock
Sale - Save 10% $ 73.99

This product was last offered at the strikethrough price on
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$ 66.59 USD
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$ 73.99

This product was last offered at the strikethrough price on
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$ 66.59 USD
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This Bav Auto replacement flex disc (aka: the guibo) is a vibration dampener mounted on the back of the transmission which connects to the driveshaft. When it has worn, it can produce knocking sounds and a terrible vibration throughout the car. It's especially noticeable at low speeds and when starting from a standstill. Oil leaking from the back of the transmission will significantly reduce its life. This can also be used as an upgrade on the E30 M3. It has much more rubber in between the bolt holes which makes it last longer. This is 5mm thicker than the stock E30 flex disc so adjustment of the 2-piece driveshaft may be required. The original flex disc bolts can be re-used.
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Bav Auto Tools - Corporate Logo
T#:580440
Part#: B8800135
In Stock
Sale - Save 3% $ 271.99

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$ 263.83 USD
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$ 271.99

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$ 263.83 USD
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Tool used to install / remove the screw nut between your BMW's rear drive axle and the differential - can also be used in replacing your differential input seal.

Bav Auto Tools - Corporate Logo
T#:580432
Part#: B8800127
In Stock
Sale - Save 3% $ 419.99

This product was last offered at the strikethrough price on
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$ 407.39 USD
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$ 419.99

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$ 407.39 USD
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The Bav Auto Rear Subframe Bushing Press allows you to remove and install rear subframe bushings while the subframe is still in the vehicle, saving you several hours of labor.
Genuine BMW - Corporate Logo
T#:192077
Part#: 83222305395
In Stock
Sale - Save 21% $ 35.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 28.52 USD
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$ 35.99

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

$ 28.52 USD
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Genuine BMW Atf 1 - 1L
This item fits the following BMW Chassis:
E36,E39,E46


Bav Auto Tools - Corporate Logo
T#:580421
Part#: B8800114
In Stock
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This product was last offered at the strikethrough price on
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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 Tools - Corporate Logo
T#:580407
Part#: B8800097
In Stock
Sale - Save 3% $ 383.99

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$ 372.47 USD
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$ 383.99

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Allows you to both remove and install rear subframe to body bushings without removing your subframe, saving you hours of labor from having to disassemble suspension components.
Genuine BMW - Corporate Logo
T#:22540
Part#: 17221728943
Ships in 5 Business Days
Sale - Save 16% $ 73.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 62.39 USD
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$ 73.99

This product was last offered at the strikethrough price on
05-14-2026

$ 62.39 USD
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Genuine BMW Hose, Inlet -
This item fits the following BMW Chassis:
E34

Fits BMW Engines including:
M60

Genuine BMW - Corporate Logo
T#:339958
Part#: 21207567624
Ships in 1 day
Starting at $ 677.99 USD
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Starting at $ 677.99 USD
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The clutch on the 335xi, 335i xDrive and 535xi is designed to take a lot of abuse but be user-friendly at the same time. However, this means that it can wear "qucikly" when the car is driven hard. When treated with consideration there's no reason why the stock OEM clutch can't last 75k-100k miles. This is the direct replacement clutch kit E9X 335xi, E60 535xi with the N54 engine. The kit comes complete with clutch disc, pressure plate, and throw-out bearing. This is the best choice when you want to maintain a reliable and efficient clutch system without the need for a different flywheel, additional parts, or awkward clutch engagement.

This item fits the following BMWs:
2006-2010 E90 BMW 335i 335xi 335i xDrive - Sedan
2007-2010 E92 BMW 335xi 335i xDrive - Coupe
2004-2010 E60 BMW 535xi 535i xDrive
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Genuine BMW - Corporate Logo
T#:48864
Part#: 21207526516
Ships in 3 Business Days
Sale - Save 13% $ 222.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 193.41 USD
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$ 222.99

This product was last offered at the strikethrough price on
05-14-2026

$ 193.41 USD
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Genuine BMW Clutch Plate - D=240Mm
This item fits the following BMW Chassis:
E63,E82,E89 Z4,E90,E92,E93

Bavarian Autosport - Corporate Logo
T#:639803
Part#: 24341423376
In Stock
Sale - Save 20% $ 29.99

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$ 23.99 USD
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$ 23.99 USD
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Remember to service your transmission at the recommended intervals to increase your transmission's life span and reliability! From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Genuine BMW - Corporate Logo
T#:337968
Part#: 11221312519
Ships on Feb 4, 2027
Sale - Save 17% $ 1,013.99

This product was last offered at the strikethrough price on
05-07-2026

Starting at $ 837.91 USD
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$ 1,013.99

This product was last offered at the strikethrough price on
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This Genuine BMW Motorsport part (used on the Sport Evo M3s) is a precision machined and balanced lightweight steel flywheel. The stock flywheel weights 19.5 lbs, the Motorsport flywheel is under 12 lbs! This lightweight flywheel will allow the motor to "spool up" faster, improving acceleration. This is a perfect flywheel upgrade for someone who does not want a full aluminum lightweight flywheel and also wants factory Motorsport parts on the E30 M3. After the Turner performance chip this is the next biggest "bang for the buck" for your M3. Flywheel mounting bolts available separately.

This item fits the following BMWs:
1987-1991 E30 BMW M3
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Genuine BMW - Corporate Logo
T#:30058
Part#: 07149157161
Ships in 3 Business Days
Sale - Save 45% $ 5.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 3.32 USD
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$ 5.99

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

$ 3.32 USD
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Genuine BMW Plug-In Connection Bracket
This item fits the following BMW Chassis:
E36 M3,E60 M5,E63 M6,E46 M3,E85 Z4M,E53 48IS,E36,E39,E46,E53 X5 X5,E63,E83 X3,E85 Z4,E86 Z4,E90,E92,E93

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Genuine BMW - Corporate Logo
T#:50655
Part#: 23311224817
In Stock
Sale - Save 8% $ 9.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 8.28 USD
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$ 9.00

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

$ 8.28 USD
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Genuine BMW Compression Spring
This item fits the following BMW Chassis:
E36 M3,E34,E36,E39,E46,E53 X5

Bavarian Autosport - Corporate Logo
T#:22690760
Part#: 24117552349
In Stock
Sale - Save 11% $ 8.99

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

$ 7.99 USD
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$ 8.99

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$ 7.99 USD
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Fits various BMW Transmissions. Includes rubber sealing washer/o-ring.

Genuine BMW - Corporate Logo
T#:174166
Part#: 07119905729
In Stock
Sale - Save 35% $ 2.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1.95 USD
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$ 2.99

This product was last offered at the strikethrough price on
05-14-2026

$ 1.95 USD
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Genuine BMW Hex Nut -
This item fits the following BMW Chassis:
E39,E65,F22,F25 X3,F26 X4,F36

Vargas Turbo Technologies - Corporate Logo
T#:21176906
Part#: VTT-A9X-DLD
In Stock
Sale - Save 7% $ 313.99

This product was last offered at the strikethrough price on
05-04-2026

Starting at $ 291.99 USD
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Sale - Save 7%
$ 313.99

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Starting at $ 291.99 USD
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VTT noticed a hole in the A9X/Z4 market for a high-quality, lightweight, NVH-friendly, and easy-to-install Diff Lock Down kit to improve diff stability under launching, and hard cornering. Vargas went to work on a very innovative design that 100% positively locks the diff down from movement, while shielding it from adding a ton of NVH, and can be used with the stock diff, and subframe bushings. This design uses existing mounting points on the vehicle, you do NOT have to remove the subframe or the Diff to install. Simply remove 4 diff bolts, drill two holes in the subframe slightly bigger, install two M10 riv-nuts, and install the lockdown, you do not even have to move the exhaust. A typical install can be 15-30 minutes for someone who is experienced. You will need a Riv-nut tool to install the Riv-nuts as one is not included. Features: Lightweight 1.5 lbs for the entire lockdown plate Uses FOUR connection points on the Diff, and two on the subframe for the ultimate in positive diff location, this will stop all diff movement on launch, saving your guibos, etc 100% Billet construction from 6061-T6 aluminum Anodized in 4 colors for corrosion resistance, a long-lasting finish, and good looks The subframe does NOT have to be removed for installation Uses all 12.9 grade hardware Does not add excessive NVH Positively locks down the diff to eliminate all unwanted movement under launches, acceleration, cornering, etc.
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Bav Auto Tools - Corporate Logo
T#:580447
Part#: B8800142
In Stock
Sale - Save 25% $ 19.99

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05-03-2026

$ 14.99 USD
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$ 19.99

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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 Tools - Corporate Logo
T#:580428
Part#: B8800121
In Stock
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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$ 21.99

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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.
Genuine BMW - Corporate Logo
T#:75867
Part#: 51113414743
Ships in 8 Business Days
Sale - Save 42% $ 102.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 59.31 USD
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$ 102.99

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

$ 59.31 USD
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Genuine BMW Bracket F Left Front Lateral Bumper - M
This item fits the following BMW Chassis:
E83 X3

Genuine BMW - Corporate Logo
T#:55209897
Part#: 234112008KT
Ships in 3 Business Days
New Item
$ 12.63 USD
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This Genuine BMW hardware rebuild kit includes the vital factory spacer sleeve and the corresponding tension compression spring, making it easier to restore crisp shifting.


Genuine BMW - Corporate Logo
T#:338092
Part#: 33107566176
Ships in 7 Business Days
Starting at $ 2,412.29 USD
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Starting at $ 2,412.29 USD
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This is a complete differential to change the gearing of a manual transmission E90/E92 325i, 328i, or 330i (not for xi models) to a 3.64 ratio final drive. The standard gearing on the manual transmission cars is 3.15 or 3.23, making this E90 diff significantly shorter. This diff is from a 330i automatic where the gear ratio has to be shorter to make up for the transmission gearing differences and extra weight. This will dramatically improve acceleration on any 325i, 328i or 330i INSTANTLY! If you are looking for better off-the-line or rolling acceleration, and are willing to sacrifice a little top-speed (some of us don't get up to 150mph), this is one of the best ways to achieve it with almost no downside. There are few things that can improve your 0-to-60 and 0-to-100 times as much as shorter gearing, and this differential is clearly a best "bang-for-buck" solution for dramatically better acceleration. Since this is an Original BMW part it carries the same BMW two year warranty as any other new part. So there's no need to take a chance on a used part from a private seller. (former BMW part number 33107519944)

Changing gear ratio changes the RPM range for any given speed. Use the chart below for examples of speed vs RPM changes for the 3.64 diff.
 

2006 330i, 6-speed manual, stock 3.15 gears, 255/35-18" rear tires

Gear RatioGearSpeedRPM

40 MPH in 4th

3.154th40 MPH2,100 RPM

3.644th40 MPH2,400 RPM

70 MPH Cruise

3.156th70 MPH2,500 RPM

3.646th70 MPH2,900 RPM

5th Gear Speed @ 6,000 RPM

3.155th142 MPH6,000 RPM

3.645th123 MPH6,000 RPM

Why 5th? Because 6th does not have the mechanical advantage to get past wind resistance at these speeds - it is more of a cruise/overdrive gear. Using 5th for comparison purposes is much more relevant than having to take into account wind direction, resistance, grade, elevation, tire sizing, etc. These numbers are for comparisons among gear ratios only, not to determine what your E90 will top out at.2006-2011 325i or 328i, 6-speed manual, stock 3.23 gears, 255/35-18" rear tires

(click to expand)

Gear RatioGearSpeedRPM

40 MPH in 4th

3.234th40 MPH2,150 RPM

3.644th40 MPH2,400 RPM

70 MPH Cruise

3.236th70 MPH2,600 RPM

3.646th70 MPH2,900 RPM

5th Gear Speed @ 6,000 RPM

3.235th138 MPH6,000 RPM

3.645th123 MPH6,000 RPM

Speed in 5th gear at 6,000 RPM is for theoretical and comparison purposes only. It doesn't mean that these speeds are actually reachable.


A $100 refundable core charge must be added at the time of order. This core charge can be refunded when you ship your original diff back to us.

This item fits the following BMWs with manual transmission only:
2006-2011 E90 BMW 325i 328i 330i - Sedan
2006-2012 E91 BMW 325i 328i - Wagon
2007-2013 E92 BMW 328i - Coupe
2007-2013 E93 BMW 328i - Convertible

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Bavarian Autosport - Corporate Logo
T#:639833
Part#: 13621433076
In Stock
Sale - Save 20% $ 14.99

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

$ 11.99 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 14.99

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

$ 11.99 USD
Free Shipping on orders $49 and up
This is the coolant temperature sensor used in many BMW models from the late-1990s to the mid-2010s. The engine computer relies on the coolant temp to set the fuel mapping for the engine. As the car warms up the computer changes the fuel mixture. If your car is running a bit rich (too much fuel) it could be because this sensor is failing and not sending the correct info to the computer. This sensor is located in a variety of places depending on the engine. But it's one of those easy replacement items 'while you're in there' when doing a water pump or thermostat replacement. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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