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BMW Drivetrain Parts for BMW E90 M3 S65 4.0L

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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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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Qty

Sale - Save 1%

$ 499.95

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

$ 494.69 USD

Add to Wish List

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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Qty

Sale - Save 1%

$ 396.99

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

$ 394.63 USD

Add to Wish List

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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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

Add to Wish List

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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BMW Drivetrain Parts for BMW E90 M3 S65 4.0L

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Differential Service Kit

DCT Transmission Service Kit

DCT Transmission Service Kit

Differential Service Kit

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