BMW Transmission Parts for BMW E21 320i M10 1.8L

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Looking for parts for your BMW automatic transmission or manual transmission? You'll find many of the parts available to service your BMW's transmission here. While internal transmission servicing and rebuilding should be done by professionals, there are a lot of things on the outside of the transmission that you can service or replace yourself. These include gearbox seals, o-rings, gaskets, automatic transmission filters, backup light switches, mounting bolts, flanges, collar nuts, screw plugs, Mechatronics, and more.

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Redline - Corporate Logo
T#:1233
Part#: TMS1233
Ships on Sep 23, 2026
$ 25.99 USD
Free Shipping on orders $49 and up
A unique gear oil designed to lubricate racing transmissions and transaxles which see serious loads (not recommended for most syncro-type transmissions). It has excellent low-temperature flow which allows easier shifting when cold. May be used to obtain maximum power transfer in racing differentials which do not see high temperatures. Similar to a 75W140 gear oil, but with the lower internal friction of an SAE 30 motor oil.Used in two-stroke and four-stroke motocross transmissions (often mixed in equal parts with SuperLight ShockProof™ Gear Oil). Used in most road-racing differentials with moderate power and dogring racing transaxles.
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Genuine BMW Output Shaft Seal
For vehicles with a production date from 09/1979 up to 09/1982
Genuine BMW - Corporate Logo
T#:181126
Part#: 23121205342
Ships in 1-2 days
3% off MSRP $ 30.99

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

$ 29.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 30.99

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

$ 29.99 USD
Free Shipping on orders $49 and up


Genuine BMW Shaft Seal - 40X55X8
This item fits the following BMW Chassis:
E30 M3,E34 M5,E30,E34

Genuine BMW - Corporate Logo
T#:7616
Part#: 25111207744
Ships in 1-2 days
$ 7.99 USD
Free Shipping on orders $49 and up

Replace your damaged shifter cup to ensure smooth shifter operation.


Genuine BMW Ball Cup Lower -
This item fits the following BMW Chassis:
E30

 


Genuine BMW - Corporate Logo
T#:7582
Part#: 23221201330
Ships in 1-2 days
$ 7.99 USD
Free Shipping on orders $49 and up


Genuine BMW Securing Plate -
This item fits the following BMW Chassis:
E30,E34


Genuine BMW - Corporate Logo
T#:51785
Part#: 24311422671
Ships in 1-2 days
3% off MSRP $ 33.99

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

$ 32.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 33.99

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

$ 32.99 USD
Free Shipping on orders $49 and up


Genuine BMW Shaft Seal - 40X52X7
This item fits the following BMW Chassis:
E36 M3,E30,E34,E36,E38,E39,E53 X5

Genuine BMW - Corporate Logo
T#:49988
Part#: 23121224076
In Stock
3% off MSRP $ 76.99

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

$ 74.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 76.99

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

$ 74.99 USD
Free Shipping on orders $49 and up


Genuine BMW Roller Bearing - 44X25X19,65
This item fits the following BMW Chassis:
E30,E34


Genuine BMW Countershaft Bearing
For vehicles with a production date from 09/1982
Genuine BMW - Corporate Logo
T#:174576
Part#: 23121224077
Ships in 1-2 days
4% off MSRP $ 49.99

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

$ 47.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 49.99

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

$ 47.99 USD
Free Shipping on orders $49 and up


Genuine BMW Roller Bushing - 44X25X19,65
This item fits the following BMW Chassis:
E34 M5,E30,E34,E36,E39,E46,E85 Z4

Genuine BMW - Corporate Logo
T#:368001
Part#: 23111228314
Ships in 1-2 days
3% off MSRP $ 60.99

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

$ 58.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 60.99

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

$ 58.99 USD
Free Shipping on orders $49 and up

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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Genuine BMW - Corporate Logo
T#:22701
Part#: 23711246004
Ships in 1-2 days
3% off MSRP $ 65.99

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

$ 63.99 USD
Free Shipping on orders $49 and up
3% off MSRP
$ 65.99

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

$ 63.99 USD
Free Shipping on orders $49 and up
Genuine BMW RUBBER MOUNTING.--

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

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Genuine BMW - Corporate Logo
T#:50644
Part#: 23311224388
Ships in 1-2 days
3% off MSRP $ 372.99

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

$ 360.99 USD
Free Shipping
3% off MSRP
$ 372.99

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

$ 360.99 USD
Free Shipping


Genuine BMW Selector Shaft -
This item fits the following BMW Chassis:
E30,E34

Motul - Corporate Logo
T#:2448
Part#: MO300V-10W40-2L
Ships on Sep 21, 2026
28% off MSRP $ 60.99

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

$ 43.99 USD
Free Shipping on orders $49 and up
28% off MSRP
$ 60.99

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

$ 43.99 USD
Free Shipping on orders $49 and up
10W40 MOTUL 300V series "CHRONO" competition racing oil is a true racing lubricant for true race cars. Designed for high temperatures, high shear, and the rigors of professional and endurance racing. MOTUL has developed Double Ester Technology for new 300V series, superior to complex ester which was previously recognized as the best base oil (up to now!). Double Ester Technology, made by carefully balancing the ratio of complex ester and the newly developed macromolecular high polymer ester, enable base oil more wide-ranged, and delivers high output performance and superior reliability.
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Pentosin - Corporate Logo
T#:46134785
Part#: 1058111
Ships on Sep 21, 2026
$ 31.99 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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Redline - Corporate Logo
T#:201458
Part#: 21404
Ships on Sep 25, 2026
$ 18.99 USD
Free Shipping on orders $49 and up
  • Recommended for API CJ-4/CI-4 Plus/CI-4/CF/CH-4/CF-4
  • Popular for Light Duty trucks including Chevrolet Duramax, Dodge Cummins, Ford Power Stroke
  • Best choice in medium and heavy-duty diesel truck engines for maximum durability
  • Improved drain intervals provide excellent value for commercial fleet use
  • Also for API SM/SL/SJ/SH/SG/CF and ACEA A3/B3/B4 E7/E9, MB 228.3
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    Bav Auto Tools - Corporate Logo
    T#:580353
    Part#: B8800025
    In Stock
    Sale - Save 25% $ 32.99

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

    $ 24.74 USD
    Free Shipping on orders $49 and up
    Sale - Save 25%
    $ 32.99

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

    $ 24.74 USD
    Free Shipping on orders $49 and up
    The proper size for removing BMW drain plugs.

    Motul - Corporate Logo
    T#:2249
    Part#: MOTY-75W80-1L
    Ships on Oct 1, 2026
    10% off MSRP $ 20.44

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

    $ 18.40 USD
    Free Shipping on orders $49 and up
    10% off MSRP
    $ 20.44

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

    $ 18.40 USD
    Free Shipping on orders $49 and up
    Motul Motylgear 75W80 is a gear oil/gearbox lubricant especially recommended for hard to shift gearboxes and also for BMW, Peugeot, Citroen, and Renault gearboxes. Motul has formulated Motylgear 75W-80 as an extreme pressure lubricant for efficient anti-wear protection and reinforced it with synthetic base stocks for a better resistance at high temperature and for longer life.
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    Motul - Corporate Logo
    T#:11660857
    Part#: 110860
    Special Order: No Guaranteed ETA
    10% off MSRP $ 60.83

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

    $ 54.74 USD
    Free Shipping on orders $49 and up
    10% off MSRP
    $ 60.83

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

    $ 54.74 USD
    Free Shipping on orders $49 and up

    Hella Reverse Light Switch And Idle Gear - E10, E21, E3, E9
    For vehicles with production date up to 09/1977
    Hella - Corporate Logo
    T#:7578
    Part#: 23141352153
    Special Order: No Guaranteed ETA
    $ 22.99 USD
    Free Shipping on orders $49 and up
    $ 22.99 USD
    Free Shipping on orders $49 and up
    OEM BMW MANUAL TRANSMISSION SWITCH, REVERSING LIGHT AND 23141352153.--

    This item fits the following BMWs:
    BMW 1600, 2002, 2002tii
    BMW 3 Series - 318i, 320i

    --.
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    Pentosin - Corporate Logo
    T#:45997487
    Part#: 1058210
    Ships on Sep 21, 2026
    $ 113.99

    This product was last offered at the strikethrough price on
    04-28-2026

    $ 109.99 USD
    Free Shipping on orders $49 and up
    $ 109.99 USD
    Free Shipping on orders $49 and up

    Victor Reinz - Corporate Logo
    T#:586742
    Part#: 23128677736
    Back Ordered
    $ 3.99 USD
    Free Shipping on orders $49 and up
    Fits the following transmissions: GS6-17BG/DG GS6-53BZ/DZ GS6X53DZ Getrag 242 Getrag 235 Getrag 240 Getrag 245/10/11 Getrag 260/5/50 Getrag 265/5 ​Getrag 265/6 ZF S5-16 S5D 250G S5D 260Z GS5-39DZ
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    Pentosin - Corporate Logo
    T#:46134786
    Part#: 1058211
    Ships on Sep 21, 2026
    $ 139.99 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.
    Show More Show Less