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BMW Drivetrain Parts for BMW E90 M3 S65 4.0L

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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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BMS Billet Clutch Delay Valve (CDV) Delete - E8X/E9X

T#:2513299

Part#: BMWCLUTCHVAVLE

In Stock

$ 29.99 USD

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$ 29.99 USD

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Enhance the performance of your stick shift BMW with the BMS clutch valve, a must-have upgrade for serious BMW enthusiasts. This high-performance replacement replaces the factory clutch delay valve, resulting in quicker shifts, longer clutch life, and improved 0-60 times. Designed with CNC machined precision, it installs quickly using factory-like connections with no modifications required. Made in the USA, this clutch valve is essential for maximizing the driving experience of your BMW.

Benefits:

Replaces factory clutch delay valve for improved performance
Quicker shifts and improved 0-60 times
Longer clutch life
Easy installation with factory-like connections
Made in the USA

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Ultimate Clutch Pedal refresh kit for various BMW Models

10X Entries Into Our F80 M3 Sweepstakes

T#:41255915

Part#: UCP301TKT

Back Ordered

$ 413.99

This product was last offered at the strikethrough price on
04-22-2026

$ 412.99 USD

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$ 412.99 USD

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Includes brand-new guides, spring, and hardware for a complete, hassle-free installation—everything needed for a full OEM-quality upgrade.

Differential Service Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:15710761

Part#: 33117525064-KT

In Stock

Sale - Save 2% $ 100.76

This product was last offered at the strikethrough price on
06-15-2026

$ 98.71 USD

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Sale - Save 2%

$ 100.76

This product was last offered at the strikethrough price on
06-15-2026

$ 98.71 USD

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Often overlooked, scheduled rear differential service is very important. Over time gear lube breaks down causing bearings and internal components fail. Regular maintenance will keep your vehicle running properly for years to come. Kit includes 3 Bottles of Castrol SAF-XJ 75w140 2 Drain plugs

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DCT Transmission Service Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:15644257

Part#: 17222245358-KT

In Stock

Sale - Save 1% $ 499.95

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

$ 494.69 USD

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Sale - Save 1%

$ 499.95

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

$ 494.69 USD

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The DCT transmission in your BMW is nothing short of incredible and exhilarating, but also astronomically expensive to replace. BMW has been labeling fluids as "lifetime" for quite some time now, and as enthusiasts and owners have learned over the years, there simply is no fluid that last a lifetime. With that being said, Turner Motorsport has assembled a proper DCT service kit that takes the guesswork out of the equation. No need to track down the correct fluid and plugs, simply open the box, and get the job done the correct way. By servicing your DCT transmission, you will be assured that old, broken down fluid won't cause a several thousand dollar nightmare. Turner Motorsport recommends this service every 40,000 miles to keep your transmission going strong for years to come. Kit includes: 5 quarts of Pentosin DCTF-1 fluid DCT transmission cartridge and suction filters Drain and fill plugs Oil pan with gasket

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DCT Transmission Service Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:15710778

Part#: 28107850241-KT

In Stock

Sale - Save 1% $ 396.99

This product was last offered at the strikethrough price on
07-14-2026

$ 394.63 USD

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Sale - Save 1%

$ 396.99

This product was last offered at the strikethrough price on
07-14-2026

$ 394.63 USD

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The DCT transmission in your BMW is nothing short of incredible and exhilarating, but also astronomically expensive to replace. BMW has been labeling fluids as "lifetime" for quite some time now, and as enthusiasts and owners have learned over the years, there simply is no fluid that last a lifetime. Kit includes: 5 quarts of Pentosin DCTF-1 fluid DCT transmission cartridge and suction filters Drain and fill plugs Please note: We include 5 quarts of DCT fluid because without a GT1 diagnostic tool and much more involved labor, you will not be able to replace over 5 quarts of fluid. Many elect to do this service and simply flush the fluid 5,000 miles later to ensure all fluid has been flushed, but this is not mandatory.

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Wheel Bearing Kit - rear

10X Entries Into Our F80 M3 Sweepstakes

T#:15710801

Part#: 33416762321-KT

In Stock

$ 78.99

This product was last offered at the strikethrough price on
04-20-2026

$ 73.99 USD

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$ 73.99 USD

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Wheel bearings on modern vehicles usually need pressed in. If that is the case with your vehicle, specialized tools such as a shop press may be needed to install this bearing. Check what is required to do your wheel bearing prior to ordering. Wheel bearings can need replaced for a number of different reasons. On some vehicles, when removing the front axles, it is required that you also replace the wheel bearings before reinstallation. If the wheel turns with a gritty feel or there is a loud metal to metal noise when on the road, your bearings have failed.

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Differential And LSD Tune

T#:34382136

Part#: BM237HAKT

Ships in 3 Business Days

$ 2,100.00 USD

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$ 2,100.00 USD

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Upgrade to a better performing LSD, includes tune.

M3 Driveshaft Rebuild Kit - E9X S65

10X Entries Into Our F80 M3 Sweepstakes

T#:24212292

Part#: E9X65FLXCVKT

Ships in 1-2 days

$ 878.99

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

$ 820.99 USD

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$ 820.99 USD

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Replaces your Flex Disc, CV Joint, and Center Mount

Differential Service Kit

10X Entries Into Our F80 M3 Sweepstakes

T#:15744025

Part#: 331175250640-KT

In Stock

Sale - Save 5% $ 274.99

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

$ 260.36 USD

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Qty

Sale - Save 5%

$ 274.99

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

$ 260.36 USD

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Often overlooked, scheduled rear differential service is very important. Over time gear lube breaks down causing bearings and internal components fail. Regular maintenance will keep your vehicle running properly for years to come. Three bottle of Genuine BMW Limited Slip Gear Lube 1 New Genuine BMW Drain/Fill plugs 1 ECS Magnetic Differential Oil Drain Plug Drain plug O-ring

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Universal Short Shifter V3 - Self Centering - Black Reverse Button Wi...

10X Entries Into Our F80 M3 Sweepstakes

T#:55317707

Part#: IRPUSSKT2

In Stock

$ 552.99 USD

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$ 552.99 USD

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Stop guessing where the gate is. Upgrade your connection to the machine and drive your BMW the way it was meant to be driven.

Bavarian Autosport Hub Adapter With Hub Puller Slide Hammer Adapter A...

10X Entries Into Our F80 M3 Sweepstakes

T#:56254753

Part#: B8800120KT2

Ships in 10 Business Days

$ 177.99 USD

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$ 177.99 USD

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Combining a heavy duty hub adapter with dedicated slide hammer and impact force screw attachments, this kit is built for serious mechanics and track day drivers who need unyielding strength to get the job done right the first time.

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