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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Throw Out Bearing (Sachs) for Most BMWs (see list)
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Sachs - Corporate Logo
T#:371823
Part#: 21517521471
In Stock
$ 50.99 USD
Free Shipping on orders $49 and up
Standard Throwout Bearing. Works with stock clutch/pressure plate or HD setup. Note: When you buy a standard clutch kit from us, it includes the throw-out bearing. This part is also known by a few other part#'s, including BMW Part# 21 51 1 223 366 (21511223366), BMW Part# 21 51 2 226 729 (21512226729), and Sachs part# 3151231031.

This throw out bearing fits most BMWs including:
1975-1983  E21 3 Series  - all including 320i, 323i
1975-1989  E24 6 series  including 630csi, 633csi, 635csi & E24 M6
1982-1988  E28 5 Series  (all) including 528e, 533i, 535i & E28 M5
1984-1991  E30 3 series  (all) including 318i, 318is, 325, 325e, 325es, 325i, 325is, 325ix & E30 M3
1988-1994  E32 7 Series  6 cylinder (735i, 735iL)
1989-1995  E34 5 Series  6 cylinder (525i & 535i)
1992-1999  E36 3 Series  (all) including 318i, 318is, 318ti, 325i, 325is, 323is, 328i, 328is, and E36 M3
1997-2003  E39 5 Series  6 cylinder, including 528i, 525i & 530i
1999-2005  E46 3 Series  with 5 speed, including 323i, 323Ci, 325i, 325xi, 325Ci, 328i, 328Ci, 330i, 330Ci & 330xi (**no ZHP 6 speed)
2000-2006  X5  6 cylinder / X5 3.0
1996-2002  Z3 Roadster/Coupe  including Z3 1.9, 2.3, 2.5, 2.8 and 3.0
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Clutch Release Bearing
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Sachs - Corporate Logo
T#:28803208
Part#: 21511204525
In Stock
$ 101.99

This product was last offered at the strikethrough price on
03-17-2026

$ 63.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 101.99

This product was last offered at the strikethrough price on
03-17-2026

$ 63.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
JB Racing - Corporate Logo
T#:3647
Part#: 520-110-215
Ships in 2 Business Days
$ 581.00 USD
Free Shipping
$ 581.00 USD
Free Shipping
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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Meyle Universal Flex Disc - E21
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:7656
Part#: 26111106113
Ships in 3 Business Days
$ 50.22

This product was last offered at the strikethrough price on
07-07-2026

$ 48.82 USD
Free Shipping on orders $49 and up
$ 48.82 USD
Free Shipping on orders $49 and up
BMW DRIVESHAFT UNIVERSAL JOINT 26111106113.--

This item fits the following BMWs:
BMW 1600, 2002, 2002tii
BMW 3 Series - 320i, 323i

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Sachs Clutch Kit - E21, E30
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Sachs - Corporate Logo
T#:378351
Part#: 21211223572
Ships in 1 day
$ 281.78 USD
Free Shipping
$ 281.78 USD
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Includes clutch disk, pressure plate and clutch release bearing
Adapter Set For Transmission Fluid Pump
We Price Match - Give Us A Call or Chat!
Meyle - Corporate Logo
T#:29101662
Part#: 9999901001
Back Ordered
$ 91.99 USD
Free Shipping on orders $49 and up
  • The Meyle Adapter Set for the Transmission Fluid Filler Pump is designed for a wide range of Euro and domestic vehicles. This set allows you to maximize the utility of Meyle's premium-built pump across various makes in your driveway. Each adapter easily attaches to the filler's coupler, ensuring quick and seamless transitions between adapters. The set comes in a blow-molded case, providing convenient and mess-free storage.


    Please note: The Meyle transmission filler tool is sold separately. The filler tool part number is T29068522.


    Includes:

    • BMW, Volvo Adapter (5/16" -24 UNF)
    • VW, Audi, Porsche Adapter (M10 x 1.00)
    • VW Adapter (Alternate)
    • VW, BMW Adapter (Alternate)
    • Nissan, Honda, BMW Adapter (Alternate)
    • Audi, VW, Seat, Skoda Adapter (M24 x 1.50)
    • Audi Adapter (M22 x 1.50)
    • Mercedes-Benz Adapter (M12 x 1.50)
    • Toyota, Lexus Adapter (M18 x 1.50)
    • Ford, Mazda Adapter (1/8" NPT)

  • WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects, and/or reproductive harm. See above warning label as well as http://www.p65warnings.ca.gov for further information on Proposition 65 warnings.

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    Packaged by Turner - Corporate Logo
    T#:56254753
    Part#: B8800120KT2
    In Stock
    New Item
    $ 177.99 USD
    Free Shipping on orders $49 and up
    Combining a heavy duty hub adapter with dedicated slide hammer and impact force screw attachments, this kit is built for serious mechanics and track day drivers who need unyielding strength to get the job done right the first time.
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    Packaged by Turner - Corporate Logo
    T#:55317707
    Part#: IRPUSSKT2
    Ships in 10 Business Days
    New Item
    $ 528.99 USD
    Free Shipping on orders $49 and up
    Stop guessing where the gate is. Upgrade your connection to the machine and drive your BMW the way it was meant to be driven.

    Transmission Fluid Filler With Adapter Set - 12.5 Liter
    We Price Match - Give Us A Call or Chat!
    Meyle - Corporate Logo
    T#:29101665
    Part#: 999 990 1000/S
    Special Order: No Guaranteed ETA
    $ 426.99 USD
    $ 426.99 USD
  • The Meyle Transmission Fluid Filleris the most robust transmission filling tool on the market. With a 12.5-liter capacity, it provides ample room for filling and flushing any transmission. You can use it manually with a hand pump or connect it to an air compressor for a pneumatic filling process. This tool helps you complete the job quickly and reliably. Every component of this filler, from the hand pump to the reinforced hose and premier coupler, to the tank itself, showcases the premium craftsmanship synonymous with Meyle. This durable filler will be your trusted companion for every transmission fluid change throughout its lifetime.


    The Meyle Adapter Set for the Transmission Fluid Filler Pump is designed for a wide range of Euro and domestic vehicles. This set allows you to maximize the utility of Meyle's premium-built pump across various makes in your driveway. Each adapter easily attaches to the filler's coupler, ensuring quick and seamless transitions between adapters. The set comes in a blow-molded case, providing convenient and mess-free storage.


    Includes:

    • Hand Pump
    • Reinforced Hose
    • Coupler (for adapter fittings, sold separately)
    • Pressure Gauge
    • Pressure Relief Valve
    • BMW, Volvo Adapter (5/16" -24 UNF)
    • VW, Audi, Porsche Adapter (M10 x 1.00)
    • VW Adapter (Alternate)
    • VW, BMW Adapter (Alternate)
    • Nissan, Honda, BMW Adapter (Alternate)
    • Audi, VW, Seat, Skoda Adapter (M24 x 1.50)
    • Audi Adapter (M22 x 1.50)
    • Mercedes-Benz Adapter (M12 x 1.50)
    • Toyota, Lexus Adapter (M18 x 1.50)
    • Ford, Mazda Adapter (1/8" NPT)

  • WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects, and/or reproductive harm. See above warning label as well as http://www.p65warnings.ca.gov for further information on Proposition 65 warnings.

  • Show More Show Less

    Meyle - Corporate Logo
    T#:55569543
    Part#: 0140193200
    Special Order: No Guaranteed ETA
    New Item
    $ 24.99

    This product was last offered at the strikethrough price on
    07-23-2026

    $ 23.99 USD
    $ 23.99 USD
    Don't let fluid breakdown slow down your shifts or trigger performance-robbing transmission slip when you're pushing your car to the limit. This Meyle ATF Plus 9 high-performance transmission fluid is engineered to withstand the extreme thermal loads and intense shear stress generated during aggressive street driving and high-RPM track sessions. Its advanced synthetic formula provides a robust lubricating film that limits friction within the gearsets and maintains crisp clutch engagement, ensuring your multi-speed automatic handles rapid downshifts and hard acceleration flawlessly.
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    Meyle - Corporate Logo
    T#:55461368
    Part#: 31212634103
    Special Order: No Guaranteed ETA
    New Item
    $ 12.99 USD
    $ 12.99 USD
    Keep your chassis tight and your wheels rotating smoothly with this high-quality replacement wheel bearing from MEYLE.
    Transmission Fluid Filler - 12.5 Liter
    We Price Match - Give Us A Call or Chat! This filler does NOT include the adapter set to allow the hose to reach the transmission fluid pan. The adapte
    Meyle - Corporate Logo
    T#:29068522
    Part#: 9999901000
    Special Order: No Guaranteed ETA
    $ 368.99 USD
    $ 368.99 USD
  • The Meyle Transmission Fluid Filleris the most robust transmission filling tool on the market. With a 12.5-liter capacity, it provides ample room for filling and flushing any transmission. You can use it manually with a hand pump or connect it to an air compressor for a pneumatic filling process. This tool helps you complete the job quickly and reliably. Every component of this filler, from the hand pump to the reinforced hose and premier quick-coupler, to the tank itself, showcases the premium craftsmanship synonymous with Meyle. This durable filler will be your trusted companion for every transmission fluid change throughout its lifetime.


    Please note: This filler does NOT include the adapter set to allow the hose to reach the transmission fluid pan. The adapter set part number is T29101662.


    Includes:

    • Hand Pump
    • Reinforced Hose
    • Quick-Coupler (for adapter fittings, sold separately)
    • Pressure Gauge
    • Pressure Relief Valve

  • WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects, and/or reproductive harm. See above warning label as well as http://www.p65warnings.ca.gov for further information on Proposition 65 warnings.

  • Show More Show Less