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 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
Free Shipping on orders $49 and up
Sale - Save 25%
$ 89.99

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

$ 67.49 USD
Free Shipping on orders $49 and up
When both extreme-duty protection and saving every gram matters: the Turner Magnetic Differential Drain Plug.
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
Free Shipping on orders $49 and up

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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Royal Purple - Corporate Logo
T#:361158
Part#: 01512
In Stock
$ 23.99 USD
Free Shipping on orders $49 and up
Royal Purple® Synchromax® is recommended for manual transmissions that specify an automatic transmission fluid or other light-viscosity oil. It is also ideal for transfer cases and 2-cycle motorcycle gearboxes that specify light viscosity lubricants. Synchromax is formulated with Royal Purple’s synthetic, proprietary Synerlec additive technology, offering improved shift quality over a wide temperature range and reduced gear noise. Synchromax is fully compatible with all types of friction materials and offers excellent corrosion and oxidation protection without affecting the soft metals commonly found in manual transmission synchronizers.
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IRP - Individual Racing Parts - Corporate Logo
T#:569037
Part#: IRPSS-DB
Ships on Aug 7, 2026
$ 52.99 USD
Free Shipping on orders $49 and up
Developed specifically for the IRP V2, V3, and V3 CS Short shifters, this Dust Boot mounts to the short shifters base to keep out dirt and noise that would normally come through the otherwise unprotected opening in your center console.
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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+).
Royal Purple - Corporate Logo
T#:369661
Part#: 01300
In Stock
$ 22.99 USD
Free Shipping on orders $49 and up
Max Gear is a high-performance automotive gear oil designed to provide maximum protection to heavily loaded gears while increasing power throughput through the drive train. Max Gear virtually eliminates both gear and bearing wear—even under severe squeeze film conditions caused by extremely high loads, sudden shock loads, or low RPMs. Slippery, synthetic molecules not only reduce wear and friction but significantly increase Max Gear’s cold weather fluidity and lubricity, making it the ideal choice for vehicles operating in cold climates. Gears run smoother, quieter, cooler, and longer without overhauls. It is non-corrosive to both ferrous and nonferrous metals.
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Kingsborne - Corporate Logo
T#:5423
Part#: TLS-33-28
In Stock
$ 18.99 USD
Free Shipping on orders $49 and up
This clutch alignment tool exactly replicates the shaft and splines of the vehicle's drive shaft. It is made of high quality polypropylene injected plastics and insures perfect alignment of the clutch. Extremely durable, the clutch tool can be used over and over again. A must for anybody replacing a clutch.

This item fits the following BMWs:
1970-1976 2002 BMW 1600 2002 2002tii
1984-1985 E30 BMW 318i 318is 318ic
1984-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix M3
1982-1988 E28 BMW 524td 528e 533i 535i 535is M5
1982-1989 E24 BMW 633csi 635csi M6
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