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
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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.
Flywheel Torque Plate - M10/M20/M30/S14
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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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1 Liter Fully Synthetic Gear Oil 75w90
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We Price Match - Give Us A Call or Chat!
Liqui-Moly - Corporate Logo
T#:597546
Part#: 22090
In Stock
23% off MSRP $ 28.95

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 22.19 USD
Free Shipping on orders $49 and up
23% off MSRP
$ 28.95

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 22.19 USD
Free Shipping on orders $49 and up

Maintain the longevity of your BMW's manual transmission and differential by incorporating this fully synthetic 75w90 weight gear oil into your maintenance routine. Flushing and replacing fluids at specified intervals, as per your owner's manual, is crucial to prevent costly issues in the future. Explore the benefits of this gear oil:

  • Specifically designed for BMW manual transmissions.
  • Fully synthetic hypoid gear oil for high performance.
  • Excellent protection in diverse weather conditions.
  • Maximum wear protection and precise functionality.
  • Enables longer oil change intervals.

Meets Specifications:

  • API GL4, GL5, MT-1
  • MIL-PRF 2105 E
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Liqui Moly Manual Transmission / Differential Fluid 85w90 - 1 Liter ...
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We Price Match - Give Us A Call or Chat!
Liqui-Moly - Corporate Logo
T#:394669
Part#: 20010
In Stock
18% off MSRP $ 14.95

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 12.25 USD
Free Shipping on orders $49 and up
18% off MSRP
$ 14.95

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 12.25 USD
Free Shipping on orders $49 and up
Interval transmission fluid changes are often recommended for manual transmissions to ensure long-term reliability and maximum wear prevention. Fresh fluid will prevent small amounts of metallic build up from preventing fluid flow and clogging filters and narrow channels.
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Liqui Moly Manual Transmission & Differential Fluid 75w90 - 1 Liter ...
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We Price Match - Give Us A Call or Chat!
Liqui-Moly - Corporate Logo
T#:394667
Part#: 20012
In Stock
33% off MSRP $ 21.95

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 14.79 USD
Free Shipping on orders $49 and up
33% off MSRP
$ 21.95

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 14.79 USD
Free Shipping on orders $49 and up
Liqui Moly is an official sponsor of Turner Motorsport. We work closely with Liqui Moly to ensure your BMW is receiving optimal lubrication! Select your vehicle to make sure you are viewing the best Liqui Moly options for your application.
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Liqui-Moly Top Tec ATF 1800 Synthetic Automatic Transmission Fluid - ...
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We Price Match - Give Us A Call or Chat!
Liqui-Moly - Corporate Logo
T#:554450
Part#: 20032
In Stock
26% off MSRP $ 15.95

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 11.75 USD
Free Shipping on orders $49 and up
26% off MSRP
$ 15.95

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 11.75 USD
Free Shipping on orders $49 and up
For modern automatic transmissions, hybrid transaxle systems, and electric drive differentials where an ATF fluid meeting current product specifications is required. Fully synthetic leading-edge, high-performance automatic transmission fluid. Developed to meet the severe requirements of modern multi-speed transmissions designed with 6 or more gears. The use of modern additive technology provides ultimate protection, longer fluid life, and stability combined with ideal shift quality under all operating conditions. Properties: excellent viscosity/temperature properties prevents foam formation enables a multifaceted range of applications outstanding friction characteristics high resistance to aging very good low-temperature properties excellent corrosion protection high wear resistance outstanding resistance to oxidation
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