BMW Drivetrain Parts for BMW E21 320i M10 1.8L

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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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Turner Titanium Magnetic Differential Drain Plug - M22x1.5
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:593924
Part#: 027030TMS01
In Stock
Sale - Save 25% $ 89.99

This product was last offered at the strikethrough price on
06-14-2026

$ 67.49 USD
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Sale - Save 25%
$ 89.99

This product was last offered at the strikethrough price on
06-14-2026

$ 67.49 USD
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When both extreme-duty protection and saving every gram matters: the Turner Magnetic Differential Drain Plug.
Clutch Slave Cylinder Bleeder Tool
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:49578590
Part#: 056958LA01
In Stock
Sale - Save 25% $ 61.99

This product was last offered at the strikethrough price on
06-14-2026

$ 46.49 USD
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Sale - Save 25%
$ 61.99

This product was last offered at the strikethrough price on
06-14-2026

$ 46.49 USD
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If you've ever bled the clutch hydraulic system on your BMW, you know how frustrating it can be. Designed with both DIY enthusiasts and professional technicians in mind, our clever tool simplifies one of the most notoriously annoying steps in clutch service.

Crafted from high-quality aluminum and finished in a durable black anodized coating, our clutch slave cylinder bleeder tool is built to last. Its function is simple: the adjustable piston rod applies controlled pressure directly to the clutch slave cylinder’s piston, compressing it and reducing its internal volume. By minimizing the amount of air trapped inside the cylinder, bleeding becomes faster, cleaner, and far more effective—no more endless pedal pumping or inconsistent clutch feel. The result is firm, consistent clutch pedal engagement and a smoother overall driving experience, all achieved with less time and effort underneath the car.

FEATURES & BENEFITS

Simplifies bleeding the BMW clutch hydraulic system by reducing trapped air in the slave cylinder Eliminates excessive pedal pumping and inconsistent clutch feel Helps achieve firm, consistent clutch pedal engagement Crafted from high-quality aluminum for strength and longevity Durable black anodized finish resists wear and corrosion Designed for both DIY enthusiasts and professional technicians PRODUCT DEVELOPMENT

Our Clutch Slave Cylinder Bleeder Tool was designed, engineered, tested, and quality inspected by our Research and Development team at Turner. Nothing but the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

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Flywheel Torque Plate - M10/M20/M30/S14
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:39971063
Part#: 044923LA01
In Stock
Sale - Save 25% $ 26.99

This product was last offered at the strikethrough price on
06-14-2026

$ 20.24 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 26.99

This product was last offered at the strikethrough price on
06-14-2026

$ 20.24 USD
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Engineered in-house, our torque plate is designed to provide a robust and uniform clamping surface between the flywheel and crankshaft across a range of BMW engine applications. Compatible with both factory and Turner performance flywheels, it helps prevent surface galling and ensures consistent torque distribution during installation.

Features:

Prevents galling and wear at the crankshaft-to-flywheel interface under high clamping loads
Promotes even load distribution for improved fastener integrity and long-term reliability
Compatible with a variety of BMW flywheel setups, including OEM and aftermarket configurations
Design:

Precision-machined from cold rolled steel for high strength and dimensional accuracy
Heat treated to 32 HRC for increased surface hardness and wear resistance
Clear zinc anodized for enhanced corrosion protection
Laser-etched Turner logo
Ideal for performance builds and drivetrain refreshes, this torque plate is a critical component for maintaining proper flywheel installation and maximizing long-term durability across multiple BMW platforms.

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Revshift - Corporate Logo
T#:600155
Part#: PTM-BT
Ships in 1 Business Day
$ 59.99 USD
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$ 59.99 USD
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95A Track (Green): Significantly stiffer and stronger than OEM rubber. Noticeable increase in NVH. Excellent for enthusiastically driven street and track cars.

Revshift - Corporate Logo
T#:47885235
Part#: PTM-BT-80A
Back Ordered
$ 59.99 USD
Free Shipping on orders $49 and up
80A Street (Black) Bushings: Stiffer and stronger than OEM rubber. Minimal increase in NVH. Great choice as an upgrade over stock mounts (OEM+).
Pentosin - Corporate Logo
T#:45963154
Part#: 1058110
In Stock
Sale - Save 7% $ 28.99

This product was last offered at the strikethrough price on
09-01-2026

$ 26.95 USD
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Sale - Save 7%
$ 28.99

This product was last offered at the strikethrough price on
09-01-2026

$ 26.95 USD
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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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Pentosin - Corporate Logo
T#:45997487
Part#: 1058210
In Stock
Sale - Save 5% $ 131.99

This product was last offered at the strikethrough price on
09-01-2026

$ 125.08 USD
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Sale - Save 5%
$ 131.99

This product was last offered at the strikethrough price on
09-01-2026

$ 125.08 USD
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Elring Manual Transmission Gasket Set - E10, E21
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:596462
Part#: 23009065645
Ships in 2 Business Days
$ 56.75

This product was last offered at the strikethrough price on
08-31-2026

$ 50.35 USD
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$ 50.35 USD
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Stop your transmission leak

Elring - Corporate Logo
T#:7718
Part#: 31211101114
In Stock
Sale - Save 63% $ 11.59

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

$ 4.28 USD
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Sale - Save 63%
$ 11.59

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

$ 4.28 USD
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OEM BMW FRONT AXLE SHAFT SEAL 31211101114.--

This item fits the following BMWs:
BMW 1600, 2002
BMW 3 Series - 320i

--.

Elring - Corporate Logo
T#:375352
Part#: 23111228314
In Stock
$ 7.13 USD
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For vehicles with manual transmission only
Elring Selector Shaft Seal - E36, E39, E46, E36 Z3
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:340660
Part#: 23121222677
In Stock
$ 5.14 USD
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Rubber seals are often hardened and damaged by excessive heat and constant temperature changes causing them to become brittle and crack or split. If your seal has split, replace it with a new Elring seal for long reliability and to prevent further problems.

Elring is one of the biggest OEM names in the manufacturing of high quality gaskets that are available for very affordable prices. Elring has supplied many automotive names for years with the gaskets that seal your car's components from day 1 so you can rest assured that these components will last for a long time to come!

Fits the following BMW's:
E36, E39, E46, E36 Z3

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Pentosin - Corporate Logo
T#:348645
Part#: BF1P4
In Stock
Sale - Save 5% $ 19.99

This product was last offered at the strikethrough price on
09-01-2026

$ 18.99 USD
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Sale - Save 5%
$ 19.99

This product was last offered at the strikethrough price on
09-01-2026

$ 18.99 USD
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Boiling Point - Dry 265°C (509°F) / Wet >165°C (329°F)


Elring - Corporate Logo
T#:13243
Part#: 23121205340
In Stock
$ 9.99

This product was last offered at the strikethrough price on
04-10-2026

$ 4.99 USD
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$ 4.99 USD
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SHAFT SEAL:H23120
Elring Front Wheel Bearing Seal - E10, E12, E21, E24, E9
For vehicles with a production date up to 09/1979
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:7721
Part#: 31212634108
Ships in 1 Business Day
$ 6.99

This product was last offered at the strikethrough price on
08-11-2026

$ 5.99 USD
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$ 5.99 USD
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Front Axle Shaft Seal 31211106218
Pentosin - Corporate Logo
T#:57725172
Part#: 83220142516
Ships in 3 Business Days
New Item
Sale - Save 5% $ 462.99

This product was last offered at the strikethrough price on
09-01-2026

$ 439.38 USD
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Sale - Save 5%
$ 462.99

This product was last offered at the strikethrough price on
09-01-2026

$ 439.38 USD
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Keep your transmission performing at its peak on both the street and the track with high-grade synthetic fluid designed for modern automatic gearboxes.

Pentosin - Corporate Logo
T#:46134785
Part#: 1058111
In Stock
Sale - Save 7% $ 35.99

This product was last offered at the strikethrough price on
09-01-2026

$ 33.41 USD
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Sale - Save 7%
$ 35.99

This product was last offered at the strikethrough price on
09-01-2026

$ 33.41 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 - Corporate Logo
T#:46134786
Part#: 1058211
In Stock
Sale - Save 5% $ 163.99

This product was last offered at the strikethrough price on
09-01-2026

$ 155.15 USD
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Sale - Save 5%
$ 163.99

This product was last offered at the strikethrough price on
09-01-2026

$ 155.15 USD
Free Shipping on orders $49 and up
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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