BMW Drivetrain Parts for BMW F85 X5 M S63 4.4L

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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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OEM Rein Magnetic Differential Oil Drain Plug - M22x1.5 - Most BMW & ...
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Rein - Corporate Logo
T#:38890943
Part#: HWU0065
In Stock
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06-29-2026

$ 22.79 USD
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As components in the differential begin to wear, metal particles become loose in the diff fluid, which can lead to excess wear. This magnetic plug pulls these particles out of suspension, helping to reduce wear over time. Replaces BMW # 33117525064
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Transmission Pan Bolt - Automatic Trans - Set Of 13
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Bremmen Parts - Corporate Logo
T#:30231285
Part#: 24117552108-13PC
In Stock
Sale - Save 3% $ 30.99

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

$ 29.99 USD
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This product was last offered at the strikethrough price on
05-03-2026

$ 29.99 USD
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OEM Rein Transfer Case Fluid - 1 Liter - BMW
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Rein - Corporate Logo
T#:20089545
Part#: 83222409710
In Stock
Sale - Save 12% $ 50.99

This product was last offered at the strikethrough price on
04-06-2026

$ 44.64 USD
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This product was last offered at the strikethrough price on
04-06-2026

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Rein Transfer Case Fluid TF 0870 is designed to service your BMW xDrive transfer case, ensuring optimal performance and reliability. This genuine BMW fluid is essential for maintaining the efficiency of your transfer case, especially if you are nearing or exceeding the 60,000-mile mark. Using Rein Transfer Case Fluid TF 0870 helps to catch up on crucial maintenance and keep your vehicle running smoothly.

  • Genuine BMW Fluid: Ensures compatibility and peak performance for BMW xDrive transfer cases.
  • Optimal Performance: Helps maintain the efficiency of the transfer case, enhancing overall vehicle reliability.
  • Preventive Maintenance: Ideal for vehicles approaching or exceeding 60,000 miles to ensure continued smooth operation.
  • High-Quality Formulation: Designed to meet BMW's specifications for superior protection and longevity.
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Pentosin ATF 8 Automatic Transmission Fluid - 1 Liter - BMW 8HP Trans...
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Pentosin - Corporate Logo
T#:45963154
Part#: 1058110
In Stock
Sale - Save 11% $ 26.99

This product was last offered at the strikethrough price on
04-28-2026

$ 23.92 USD
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This product was last offered at the strikethrough price on
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Transmission fluid is responsible for both cooling and lubricating sensitive transmission components. Over time, this fluid becomes contaminated by particulate from clutch and gear components wearing down. This contamination reduces the fluid's ability to act as a lubricant, eventually leading to increased wear and tear within the transmission. To prevent excess wear and keep your transmission in top shape, the fluid and filter should be replaced regularly. As per ZF's recommendations, we suggest performing a full service on your 8HP automatic transmission every 50,000 miles. If your vehicle has been modified to produce more power than stock or if it is regularly track-driven, we recommend shorter 30,000-mile service intervals. This will ensure your transmission's fluid is free from contamination, which will help extend the life of internal transmission components, such as clutch packs and solenoids.
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BMW Transmission Pan Bolt - 24pc
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Rein - Corporate Logo
T#:46616015
Part#: 24117519360
In Stock
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This product was last offered at the strikethrough price on
06-29-2026

$ 28.39 USD
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This product was last offered at the strikethrough price on
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$ 28.39 USD
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This single-use bolt secures the transmission fluid pan to the transmission. When servicing your transmission, be sure to have enough of these bolts on hand to replace all the existing fluid pan fasteners.
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Pentosin ATF 8 Automatic Transmission Fluid - 5 Liters - BMW 8HP Tran...
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Pentosin - Corporate Logo
T#:45997487
Part#: 1058210
In Stock
Sale - Save 9% $ 113.99

This product was last offered at the strikethrough price on
04-28-2026

$ 104.22 USD
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$ 113.99

This product was last offered at the strikethrough price on
04-28-2026

$ 104.22 USD
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Automatic Transmission Service Kit - 8HP75 - BMW F85 X5M, F86 X6M ...
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Packaged by Turner - Corporate Logo
T#:31059462
Part#: TMSF8XMATSKT
Ships in 6 Business Days
Sale - Save 3% $ 319.99

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

$ 310.05 USD
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$ 319.99

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

$ 310.05 USD
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Over the life of a vehicle, the transmission can often be overlooked when performing routine maintenance. If left unserviced, the automatic transmission fluid will break down, causing the valve body and filter to become contaminated with deposits and sludge. This will lead to poor shifting, slipping, and ultimately, transmission failure. Kit Includes: OEM Hengst Automatic transmission filter OEM Hengst Hengst Oil Pan Gasket & Installation Hardware OEM Hengst Drain plug with sealing washer OEM Hengst Fill plug with sealing washer 10 Liters of ZF Lifeguard 8 Transmission Fluid Turner Motorsport recommends performing a full service on your automatic transmission every 50,000 miles for regular street driving or 30,000 miles for vehicles that are raced or often track driven.
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Automatic Transmission Service Kit - 8HP75 - BMW F85 X5M, F86 X6M ...
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T#:31059463
Part#: TMSF8XMATSKT1
Ships in 6 Business Days
$ 248.42 USD
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Over the life of a vehicle, the transmission can often be overlooked when performing routine maintenance. If left unserviced, the automatic transmission fluid will break down, causing the valve body and filter to become contaminated with deposits and sludge. This will lead to poor shifting, slipping, and ultimately, transmission failure. Kit Includes: OEM Hengst Automatic transmission filter OEM Hengst Hengst Oil Pan Gasket & Installation Hardware OEM Hengst Drain plug with sealing washer OEM Hengst Fill plug with sealing washer 10 Liters of Liqui Moly Top Tec ATF 1800 Fluid Turner Motorsport recommends performing a full service on your automatic transmission every 50,000 miles for regular street driving or 30,000 miles for vehicles that are raced or often track driven.
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Rein OEM Transfer Case Overhaul Kit - F85 X5M, F86 X6M
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Rein - Corporate Logo
T#:24212288
Part#: RVK0005
Back Ordered
Sale - Save 5% $ 1,086.99

This product was last offered at the strikethrough price on
06-29-2026

$ 1,032.64 USD
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$ 1,086.99

This product was last offered at the strikethrough price on
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Rein OE Transfer Case Overhaul Kit is a solution kit developed to perform a complete overhaul of the xDrive transfer case. The complete kit includes bearings, clutch packs, shims, magnets, retainers, hardware, seals, and other necessary internal components. Until now, the only solution to repair these failure-prone transfer cases was to replace them with a complete assembly at the dealer or install a used assembly at the local shop. No other options were available due to no offering for internal components. All the components offered in Rein's Transfer Case Overhaul Kit are OE, identical to the original parts on the vehicle direct from the factory. Features: Includes all OE components Solution for T-cases that were damaged from overheating or lack of service made to strict OE engineering quality standards 4 year/50,000 mile warranty The kit was designed to service the ATC 45L transfer cases found in the F85 & F86 models as BMW part numbers 27107854164 and 27105A371E4
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Pentosin Super DOT4 Brake Fluid - 1 Liter
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T#:348645
Part#: BF1P4
In Stock
Sale - Save 5% $ 19.99

This product was last offered at the strikethrough price on
06-29-2026

$ 18.99 USD
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This product was last offered at the strikethrough price on
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Boiling Point - Dry 265°C (509°F) / Wet >165°C (329°F)
Automatic Transmission Service Kit - 8HP75 - BMW F85 X5M, F86 X6M ...
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Packaged by Turner - Corporate Logo
T#:31059464
Part#: TMSF8XMATSKT2
Ships in 6 Business Days
$ 309.53 USD
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Over the life of a vehicle, the transmission can often be overlooked when performing routine maintenance. If left unserviced, the automatic transmission fluid will break down, causing the valve body and filter to become contaminated with deposits and sludge. This will lead to poor shifting, slipping, and ultimately, transmission failure. Kit Includes: OEM Hengst Automatic transmission filter OEM Hengst Hengst Oil Pan Gasket & Installation Hardware OEM Hengst Drain plug with sealing washer OEM Hengst Fill plug with sealing washer 10 Liters of Redline D6 ATF Turner Motorsport recommends performing a full service on your automatic transmission every 50,000 miles for regular street driving or 30,000 miles for vehicles that are raced or often track driven.
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CV Boot Kit - Front Outer
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Rein - Corporate Logo
T#:593240
Part#: 31607608096
Ships in 3 Business Days
Sale - Save 5% $ 27.99

This product was last offered at the strikethrough price on
06-29-2026

$ 26.59 USD
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This product was last offered at the strikethrough price on
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Pentosin ATF 9 Automatic Transmission Fluid - 1 Liter
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Pentosin - Corporate Logo
T#:46134785
Part#: 1058111
Special Order: No Guaranteed ETA
Sale - Save 6% $ 31.99

This product was last offered at the strikethrough price on
06-29-2026

$ 30.11 USD
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Pentosin ATF9 is specially developed with reduced viscosity to optimize the performance of the latest generation 8 and 9-speed ZF automatic transmissions. Pentosin ATF 9 has been developed to deliver outstanding friction control to ensure excellent shifting performance.
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Pentosin ATF 9 Automatic Transmission Fluid - 5 Liters
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Pentosin - Corporate Logo
T#:46134786
Part#: 1058211
Special Order: No Guaranteed ETA
Sale - Save 5% $ 139.99

This product was last offered at the strikethrough price on
06-29-2026

$ 132.59 USD
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$ 139.99

This product was last offered at the strikethrough price on
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$ 132.59 USD
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Pentosin ATF9 is specially developed with reduced viscosity to optimize the performance of the latest generation 8 and 9-speed ZF automatic transmissions. Pentosin ATF 9 has been developed to deliver outstanding friction control to ensure excellent shifting performance.
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