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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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Clutch Slave Cylinder - E30 including M3

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T#:3573

Part#: 21521116300

In Stock

$ 35.00

This product was last offered at the strikethrough price on
06-26-2026

$ 28.99 USD

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$ 28.99 USD

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This is a replacement clutch slave cylinder, made by a high quality OEM manufacturer. It fits all 1984-1991 3 series, including M3, 318i, 318is, 325, 325e, 325es, 325i, 325is, 325ic, and 325ix.

Febi Shift Tower Mount - E10, E21, E23, E24, E28, E30

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T#:7617

Part#: 25111208580

In Stock at Vendor

$ 23.99 USD

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$ 23.99 USD

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BMW GEARSHIFT SUPPORTING BRACKET 25111208580

Flex Disc - Guibo - E21 E28 E30 E36 Z3

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T#:359528

Part#: 26111225624

In Stock

$ 70.99 USD

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$ 70.99 USD

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Replacement guibo made by Febi . 110mm diameter x 28mm width - for:

1977-1983 E21 - 320i
1983-5/1986 E28 - 528e - Manual Transmission
5/1986-1988 E28 - 528e - Manual or Automatic Transmission
1984-1991 E30 - 318i, 318is, & 318ic
1984-1986 E30 - 325e/es (thru 04/1986)
1986-1991 E30 - 325i, 325is, 325ic
1987-1991 E30 - 325ix
1992-1997 E36 - 318i 318is 318ic - For Automatic Transmission only
1996-1998 Z3 - Z3 1.9 liter roadster

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Febi Driveshaft Centering Sleeve

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T#:382476

Part#: 26117526611

Ships on Aug 31, 2026

$ 23.99 USD

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$ 23.99 USD

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Located at the front of the drive shaft

Febi Febi Manual Transmission Fluid (75w-80) - 1 Liter

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T#:1180762

Part#: G052911

In Stock at Vendor

$ 29.99 USD

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$ 29.99 USD

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Fully synthetic high performance GL-5 gear oil excellent lubricating properties, high ageing resistance, and high wetting and adhesion properties

2002, E21 320i, E30 318i (M10) JB Racing Lightweight Aluminum Flywhee...

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T#:3647

Part#: 520-110-215

Ships in 2 Business Days

$ 581.00 USD

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$ 581.00 USD

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Aluminum flywheels are much lighter than the stock steel flywheel and that produces better throttle response and more available horsepower to the wheels for faster acceleration. The JB Racing aluminum flywheels are a direct replacement for the stock flywheel and work with stock clutch components for an easy upgrade with very little downside.

Modern flywheels are built with additional components and features that are designed to dampen and minimize vibrations from the engine and transmission. As a result they have become bloated in weight and that means more energy is used up just making the flywheel spin. The weight difference between an aluminum and steel flywheel is huge - sometimes more than 50% less. Without the additional mass, more energy can be diverted to where it counts most - moving the car. The flywheel and clutch is one of the first areas that engine builders address when making the rotating assembly lighter for race engines. The dampening effect is just not needed on cars that are focused on performance.

In addition to releasing more power to the wheels, the lighter flywheel allows the engine to spin more freely, which improves throttle response. Again, the difference is huge as you watch the revs build faster than before. With the engine spinning easier the power band comes up much sooner. The stock steel flywheel feels lazy in comparison. There is a driving adjustment required to get used to how much faster the engine revs but that's not really a downside.

The JB lightweight flywheel is designed to be used with a factory organic clutch - the same clutch kit that you would get from any BMW dealer. This makes replacement clutch components easy to source and inexpensive when compared to specialized racing clutches. By using the factory BMW clutch, JB has also made the whole assembly easy to live with when used on the street. The clutch behaves the same as it originally did - just with better throttle response and more power! The JB flywheel can be rebuilt too with a new clutch contact surface.

Aluminum flywheels are considered 'single-mass' flywheels because they do not have the same dampening designs as an original 'dual-mass' flywheel. With a single-mass design more noise and vibration may be noticeable. There are steps you can take to minimize the noise - heavier weight transmission oil and clutch discs with anti-rattle springs (sprung-hub clutch).

Stock Flywheel Weight = 16.5lbs
JB Flywheel Weight = 8lbs

This item fits the following BMWs:
1974-1976 2002 BMW 2002
1977-1983 E21 BMW 320i
1984-1985 E30 BMW 318i

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Febi Clutch Release/Throw-Out Bearing

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T#:382440

Part#: 21517521471

Back Ordered

$ 64.99 USD

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$ 64.99 USD

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Should be replaced each time the clutch is replaced

Selector Shaft Seal - Priced Each

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T#:16208928

Part#: 23111204223

In Stock

$ 7.99

This product was last offered at the strikethrough price on
04-15-2026

$ 6.99 USD

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$ 6.99 USD

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Febi Output Shaft Seal - E10, E12, E21, E23, E24, E28, E3, E30, E32, ...

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T#:381870

Part#: 23121205340

In Stock

$ 5.23 USD

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$ 5.23 USD

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Located on the tail stock of the transmission

High Temperature CV Joint Grease - 120g Tube

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T#:26438189

Part#: G000633

In Stock

$ 11.99

This product was last offered at the strikethrough price on
04-15-2026

$ 8.15 USD

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$ 8.15 USD

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Febi Transmission Mount - E21

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T#:381872

Part#: 23711109173

Ships in 1 Business Day

$ 17.68

This product was last offered at the strikethrough price on
05-29-2026

$ 15.65 USD

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$ 15.65 USD

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Mounted at the rear of transmission on crossmember

Febi Front Wheel Bearing Kit - E21

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T#:19838

Part#: 31211107447

In Stock at Vendor

$ 12.99 USD

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$ 12.99 USD

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WHEEL BEARING REPAIR KIT 31211107447 Manufactured by Febi

Febi Drain Plug Gasket

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T#:340702

Part#: 07119963355

Ships on Oct 2, 2026

$ 1.99 USD

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$ 1.99 USD

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22x27 aluminum sealing ring

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