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Rein 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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Rear Axle Nut - Rein | 33406799223
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:38229104
Part#: 33406799223
In Stock
$ 6.99 USD
Free Shipping on orders $49 and up

Rear Axle Nut - Rein | 33406799223 is an essential component for securing the rear axle of your BMW, providing a secure and reliable connection between the axle and wheel hub. Designed for durability and precision, this high-quality rear axle nut is an OEM replacement, ensuring a perfect fit for various BMW models. Whether performing routine maintenance or a full axle replacement, the Rein rear axle nut is a critical part of maintaining the performance and safety of your BMW.

  • Direct replacement for rear axle nut on various BMW models
  • OEM part number: 33406799223 for precise fitment
  • Ensures secure attachment of the rear axle to the wheel hub
  • Manufactured for durability and long-lasting performance
  • Helps maintain vehicle safety by securing vital axle components
  • Easy to install with standard tools, saving time and effort
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BMW Aluminum Bolt
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:46478545
Part#: 23000417164S
In Stock
$ 7.99 USD
Free Shipping on orders $49 and up
This is a single-use bolt and should be replaced every time it’s removed. Don’t let a major repair come to a halt because you’re missing the proper hardware.
Rein Transmission Pan Bolt - M6X28.5mm - BMW
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:45723150
Part#: 24117552108
Ships in 3 Business Days
$ 2.99 USD
Free Shipping on orders $49 and up
Prevent leaks from the transmission oil pan with brand new bolts from Rein NOTE: These bolts are priced each - The required quantity for each vehicle may change based on the specific transmission and oil pan shape. If you are unsure of how many you need for your BMW, please contact our sales team for assistance.
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Rein - Corporate Logo
T#:38161727
Part#: RVK0006
Ships in 3 Business Days
$ 1,549.56 USD
Free Shipping on orders $49 and up
$ 1,549.56 USD
Free Shipping on orders $49 and up
The Rein OE Transfer Case Overhaul Kit is a solution kit developed to perform a complete overhaul of the X-Drive transfer case. The kit is comprised of the sprocket, shims, clutch pack, chain, gears, and other necessary internal components. Until now, the only solution to repair these failure prone transfer cases was to replace with a complete assembly at the dealer or install a used assembly at the local shop. No other options were available due to no offerings for internal components. This kit specifically caters to the chain drive portion of the ATC 45L transfer case. 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.
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Rein - Corporate Logo
T#:5718804
Part#: 28107842849
Ships in 3 Business Days
$ 991.99 USD
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$ 991.99 USD
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Rein OE Dual Clutch Transmission Oil Pump Kit, including OE mounting kit Direct fit OE replacement kit Complete with OE installation kit for ease of installation Failed oil pump may lead to premature failure of clutch & transmission Highest quality standards to avoid re-work and comebacks
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Transfer Case Motor
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:599709
Part#: 27607643762
Ships in 3 Business Days
$ 1,166.99 USD
Free Shipping
$ 1,166.99 USD
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Replacement Transfer Case Motor from Rein

Rein - Corporate Logo
T#:45963167
Part#: RVK0002
Ships in 3 Business Days
$ 1,350.99 USD
Free Shipping on orders $49 and up
The Rein OE Transfer Case Overhaul Kit is a solution kit developed to perform a complete overhaul of the X-Drive 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.
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Water Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:594317
Part#: 17127560974
Ships in 3 Business Days
$ 37.99 USD
Free Shipping on orders $49 and up
Radiator to Auto Trans Oil Cooler

CV Boot Kit - Front Outer
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:593240
Part#: 31607608096
Ships in 3 Business Days
$ 27.99 USD
Free Shipping on orders $49 and up

Rein - Corporate Logo
T#:639081
Part#: 28107842383
Back Ordered
$ 15.99 USD
Free Shipping on orders $49 and up
Replace your lost or stripped drain plug with a brand new OEM Rein drain plug to prevent leaks and ensure a secure fit.
Drive Shaft Flex Joint Bolt
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:38229105
Part#: 26117551225
Ships in 1 Business Day
$ 3.75 USD
Free Shipping on orders $49 and up
The **Drive Shaft Flex Joint Bolt** is a durable, high-strength fastener designed to securely attach the flex joint (guibo) to the driveshaft and transmission. Built for reliability, it minimizes drivetrain vibrations and ensures smooth power transfer.
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Rein - Corporate Logo
T#:379685
Part#: 24311422671
Ships in 3 Business Days
$ 10.99 USD
Free Shipping on orders $49 and up
The input shaft seal on your transmission ensures that you will not experience any fluid loss from behind the guide sleeve. If you have a leak, be sure to replace it as soon as possible to avoid losing too much fluid, which can ultimately damage your transmission.
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Rein CV Boot Kit - E12, E23, E24
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:20014
Part#: 33219067912
Ships in 3 Business Days
$ 16.99 USD
Free Shipping on orders $49 and up
$ 16.99 USD
Free Shipping on orders $49 and up
If you have noticed a buildup of grease around your wheel well, the most likely cause is because your cv boot has torn, and is throwing the needed grease around your wheels and engine bay. When the boot is torn, it allows dirt and debris to contaminate the cv joint, which can cause damage and a costly repair.
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OEM Rein Transmission Bushing - E53 X5 N62
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:19639
Part#: 22316771742
Ships in 3 Business Days
$ 79.97

This product was last offered at the strikethrough price on
08-13-2026

$ 74.99 USD
Free Shipping
$ 74.99 USD
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A torn transmission bushing can contribute to rough shifting or gearbox damage. This bushing has been manufactured by the original equipment manufacturer Rein.
OEM Rein CV Boot Repair Kit - E21 E10
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:12274
Part#: 33219067911
Ships in 1 Business Day
$ 10.99 USD
Free Shipping on orders $49 and up
This is the OEM Rein rear axle boot kit for the CV joint. The kit includes the boot, clip, clamp, and grease.

Rein Selector Rod Shaft Seal - E12, E21, E23, E24, E28
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:592120
Part#: 24527509500
Ships in 1 Business Day
$ 4.07 USD
Free Shipping on orders $49 and up
$ 4.07 USD
Free Shipping on orders $49 and up
10x18x5mm seal - stop leaks in their tracks

Rein CV Boot Kit - Front Outer - E83
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:592335
Part#: 31607529203
Ships in 3 Business Days
$ 35.99 USD
Free Shipping on orders $49 and up
Replace torn CV boots and save CV joints
Rein - Corporate Logo
T#:363449
Part#: 23127501328
In Stock
$ 16.99 USD
Free Shipping on orders $49 and up
A common source of leaks with higher mileage, this seal should be replaced any time a leak is spotted to prevent much more catastrophic repairs.

Interior CV Boot Repair Kit
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:592497
Part#: 31607518258
In Stock at Vendor
$ 22.99 USD
Free Shipping on orders $49 and up
Rein TRANSMISSION SEAL (40X58X10) - E12, E21
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:19834
Part#: 24111207426
Ships in 3 Business Days
$ 13.99 USD
Free Shipping on orders $49 and up
The input shaft seal on your transmission ensures that you will not experience any fluid loss from behind the guide sleeve. If you have a leak, be sure to replace it as soon as possible to avoid losing too much fluid, which can ultimately damage your transmission. For front wheel drive vehicles equipped with manual transmissions only.
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Rein - Corporate Logo
T#:45963172
Part#: RVK0004
Ships in 3 Business Days
$ 1,263.99 USD
Free Shipping on orders $49 and up
$ 1,263.99 USD
Free Shipping on orders $49 and up
The Rein OE Transfer Case Overhaul Kit is a solution kit developed to perform a complete overhaul of the X-Drive 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.
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OEM Rein Front Axle C/V Boot Repair Kit - Outer - E53 X5
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:379154
Part#: 31607565316
Ships in 3 Business Days
$ 44.99 USD
Free Shipping on orders $49 and up
This CV boot kit works on both front outer CV joints. Kit includes the following parts; Boot Grease Attaching clamps
Motor Mount Bolt Set
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:592053
Part#: 22110392551
In Stock
$ 16.50 USD
Free Shipping on orders $49 and up
Used to secure the motor mount brackets, one time use bolts!
OEM Rein Transfer Case Overhaul Kit - BMW E84 X1
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:45997517
Part#: RVK0003
Ships in 3 Business Days
$ 1,450.99 USD
Free Shipping on orders $49 and up
$ 1,450.99 USD
Free Shipping on orders $49 and up
The Rein OE Transfer Case Overhaul Kit is a solution kit developed to perform a complete overhaul of the X-Drive 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.
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Rein Differential Drain Plug Gasket
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:19654
Part#: 07119963355
Ships in 3 Business Days
$ 2.03 USD
Free Shipping on orders $49 and up
GASKET RING for various sensors and seals.
OEM Rein Transmission Service Kit - F8X F10 F06/12/13
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:639073
Part#: 28107850148
In Stock at Vendor
$ 429.99

This product was last offered at the strikethrough price on
03-26-2026

$ 368.99 USD
Free Shipping
$ 368.99 USD
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This transmission service kit from OEM Rein includes: Transmission oil pan & gasket Suction filter & clutch filter all new hardware
Bellows CV Boot Repair Kit
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:594950
Part#: 31607591694
Special Order: No Guaranteed ETA
$ 27.99 USD
Free Shipping on orders $49 and up
$ 27.99 USD
Free Shipping on orders $49 and up

Rein Magnetic Transmission Drain Plug
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:53785537
Part#: HWU0117
Back Ordered
New Item
$ 16.99 USD
Free Shipping on orders $49 and up
$ 16.99 USD
Free Shipping on orders $49 and up
Magnetic Rein Transmission Plug Features Aluminum Construction with OE Dimensions and Threading. Magnetic Tip for Upgrade over Stock. Lightweight and Durable Construction Designed to Interface Perfectly with Modern Alloy Gear Housings
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Engine Mount - Left
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:592064
Part#: 22116762607
Ships in 3 Business Days
$ 79.99 USD
Free Shipping
$ 79.99 USD
Free Shipping
Isolates the vehicle from engine vibration
CV Boot Kit - Rear Inner
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:593302
Part#: 33217572447
Back Ordered
$ 47.99 USD
Free Shipping on orders $49 and up

Rein Transmission Mount - E23, E24, E28, E30
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:379789
Part#: 23711175939
Back Ordered
$ 11.99

This product was last offered at the strikethrough price on
08-13-2026

$ 9.99 USD
Free Shipping on orders $49 and up
$ 9.99 USD
Free Shipping on orders $49 and up
Stop driveline vibration
Transfer Case Overhaul Kit
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:41154271
Part#: RVK0001
Back Ordered
$ 1,325.99 USD
Free Shipping on orders $49 and up
$ 1,325.99 USD
Free Shipping on orders $49 and up
The Rein Transfer Case Overhaul Kit delivers OE-quality parts with a precision fit, making it the ideal choice for DIY enthusiasts and professional BMW technicians alike.

Rear Differential Bushing - Priced Each
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:592387
Part#: 33171134872
Back Ordered
$ 18.99 USD
Free Shipping on orders $49 and up

Rein - Radiator Hose
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:34080760
Part#: 17127600554
Ships in 3 Business Days
$ 49.99 USD
Free Shipping on orders $49 and up

Radiator Hose is a critical component for maintaining the cooling system in your BMW, ensuring efficient coolant flow and optimal engine temperature regulation. This high-quality replacement hose helps prevent overheating and reduces the risk of coolant leaks, protecting your engine from damage. Designed to meet or exceed OEM standards, the Radiator Hose guarantees a precise fit and reliable, long-lasting performance. Available through Turner Motorsport, this hose offers an easy, direct-fit installation, making it an excellent choice for BMW owners looking to restore or upgrade their vehicle’s cooling system.

  • Designed for BMW models to ensure a perfect fit and compatibility
  • Maintains efficient coolant flow to prevent engine overheating
  • Constructed from high-quality, heat-resistant materials for durability
  • Reduces the risk of coolant leaks and protects against engine damage
  • Direct-fit replacement for easy, hassle-free installation
  • Meets or exceeds OEM specifications for superior performance and reliability

Upgrade your BMW’s cooling system with the Radiator Hose, ensuring long-lasting engine protection and optimal performance.

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Rein - Corporate Logo
T#:45997532
Part#: TSK0018
Ships in 3 Business Days
$ 191.99 USD
Free Shipping on orders $49 and up
$ 191.99 USD
Free Shipping on orders $49 and up
Rein OE Quality Automatic Transmission Service kits address the short-lived valve body sealing sleeves and adaptor in the ZF 6HP transmissions. This kit includes the necessary direct-fitting sealing hardware to conveniently service the shrunken valve body sealing sleeves during the recommended fluid and filter change interval of 62,000 miles / 8 years at the latest. The ZF 6HP26Z series transmission is engineered with extreme durability and powerful in mind so long as it is serviced on time to allow the valve body to maintain proper fluid pressure. The slightest drop in valve body fluid pressure in this unit leads to premature transmission bushing and or clutch wear along with contamination and overheating of the fluid. Rein recommends the OE or Pentosin ATF-1 synthetic automatic transmission fluid for this repair.
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