BMW Transmission Parts for BMW E21 320i M10 1.8L

Clear BMW chassis

Please ensure your correct model is selected

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.

Sub-Categories

Sort By:
Liqui Moly Manual Transmission / Differential Fluid 85w90 - 1 Liter
Liqui Moly Manual Transmission / Differential Fluid 85w90 - 1 Liter ...
10X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Liqui-Moly - Corporate Logo
T#:394669
Part#: 20010
In Stock
29% off MSRP $ 17.99

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

$ 12.79 USD
Free Shipping on orders $49 and up
Add to Wish List
29% off MSRP
$ 17.99

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

$ 12.79 USD
Free Shipping on orders $49 and up
Add to Wish List
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.
Show More Show Less
Bav Auto Transmission 17mm Drain Plug Wrench - Manual Transmission
Bav Auto Transmission 17mm Drain Plug Wrench - Manual Transmission ...
10X Entries Into Our F80 M3 Sweepstakes
Bav Auto Tools - Corporate Logo
T#:580447
Part#: B8800142
In Stock
Sale - Save 25% $ 19.99

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

$ 14.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Sale - Save 25%
$ 19.99

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

$ 14.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Makes changing your transmission fluid an easy task. 1/2 " drive, for use in BMWs with 17mm female allen transmission drain plugs.
Lifeguard 8 Automatic Transmission Fluid - 1 Liter - Green
Lifeguard 8 Automatic Transmission Fluid - 1 Liter - Green
ZF - Corporate Logo
T#:4717329
Part#: G060162A2
In Stock
$ 22.34

This product was last offered at the strikethrough price on
04-03-2026

$ 19.09 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 19.09 USD
Free Shipping on orders $49 and up
Add to Wish List
Genuine BMW Gearshift Plastic Washer 25111220439
Genuine BMW Gearshift Plastic Washer 25111220439
Genuine BMW - Corporate Logo
T#:12565
Part#: 25111220439
In Stock
$ 3.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 3.99 USD
Free Shipping on orders $49 and up
Add to Wish List
Plastic washer used in various points of the shifter mechanism.
Ball Cup Bushing - Lower
Ball Cup Bushing - Lower
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:397576
Part#: 25111207744
In Stock
$ 5.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 5.99 USD
Free Shipping on orders $49 and up
Add to Wish List
component for manual transmissions.
OEM Rein Transmission Input Shaft Seal - E12 E21 E23 E24 E28 E30 E31 E32 E34 E36 E38 E39 E52 E53
OEM Rein Transmission Input Shaft Seal - E12 E21 E23 E24 E28 E30 E31 ...
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:379685
Part#: 24311422671
Ships in 4 Business Days
$ 10.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 10.99 USD
Free Shipping on orders $49 and up
Add to Wish List
The input shaft seal on your transmission ensures that you will not experience any fluid loss from behind the guide sleeve. If you have a leak, be sure to replace it as soon as possible to avoid losing too much fluid, which can ultimately damage your transmission.
Show More Show Less
Rein TRANSMISSION SEAL (40X58X10) - E12, E21
Rein TRANSMISSION SEAL (40X58X10) - E12, E21
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:19834
Part#: 24111207426
Ships in 4 Business Days
$ 13.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 13.99 USD
Free Shipping on orders $49 and up
Add to Wish List
The input shaft seal on your transmission ensures that you will not experience any fluid loss from behind the guide sleeve. If you have a leak, be sure to replace it as soon as possible to avoid losing too much fluid, which can ultimately damage your transmission. For front wheel drive vehicles equipped with manual transmissions only.
Show More Show Less
Rein Selector Rod Shaft Seal - E12, E21, E23, E24, E28
Rein Selector Rod Shaft Seal - E12, E21, E23, E24, E28
For vehicles with a production date from 04/1977
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:592120
Part#: 24527509500
Ships in 2 Business Days
$ 4.07 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 4.07 USD
Free Shipping on orders $49 and up
Add to Wish List
10x18x5mm seal - stop leaks in their tracks
Lock Plate For Output Flange Nut
Lock Plate For Output Flange Nut
ZF - Corporate Logo
T#:594165
Part#: 23221201330
In Stock at Vendor
$ 7.13 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 7.13 USD
Free Shipping on orders $49 and up
Add to Wish List
Replacement Lock Plate For Output Flange Nut from ZF
Genuine BMW Lock Plate for Output Flange Nut - E12 E21 E24 E28 E30 E32 E34
Genuine BMW Lock Plate for Output Flange Nut - E12 E21 E24 E28 E30 E3...
Genuine BMW - Corporate Logo
T#:7582
Part#: 23221201330
Ships in 1 day
$ 7.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 7.99 USD
Free Shipping on orders $49 and up
Add to Wish List


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

Genuine BMW Ball Cup Lower - 25111207744 - E30
Genuine BMW Ball Cup Lower - 25111207744 - E30
Genuine BMW - Corporate Logo
T#:7616
Part#: 25111207744
In Stock
$ 7.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 7.99 USD
Free Shipping on orders $49 and up
Add to Wish List

Replace your damaged shifter cup to ensure smooth shifter operation.


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

 

Pentosin ATF 9 Automatic Transmission Fluid - 1 Liter
Pentosin ATF 9 Automatic Transmission Fluid - 1 Liter
Pentosin - Corporate Logo
T#:46134785
Part#: 1058111
In Stock
$ 35.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 35.99 USD
Free Shipping on orders $49 and up
Add to Wish List
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
Red Line 15W-40 Synthetic Oil - for Diesel's - 1 quart
Red Line 15W-40 Synthetic Oil - for Diesel's - 1 quart
Redline - Corporate Logo
T#:201458
Part#: 21404
Ships on Oct 23, 2026
$ 18.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 18.99 USD
Free Shipping on orders $49 and up
Add to Wish List
  • 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
    • Show More Show Less
    Motul Motyl Gear SAE 75W80 Gear Oil - 1 Liter Bottle (1.05 Quart)
    Motul Motyl Gear SAE 75W80 Gear Oil - 1 Liter Bottle (1.05 Quart) ...
    Motul - Corporate Logo
    T#:2249
    Part#: MOTY-75W80-1L
    Ships on Oct 29, 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
    Add to Wish List
    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
    Add to Wish List
    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.
    Show More Show Less
    300V 15w50 "Competition" - 2 Liters
    300V 15w50 "Competition" - 2 Liters
    Motul - Corporate Logo
    T#:11660857
    Part#: 110860
    In Stock
    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
    Add to Wish List
    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
    Add to Wish List
    Pentosin ATF 9 Automatic Transmission Fluid - 5 Liters
    Pentosin ATF 9 Automatic Transmission Fluid - 5 Liters
    Pentosin - Corporate Logo
    T#:46134786
    Part#: 1058211
    In Stock
    $ 163.99 USD
    Free Shipping on orders $49 and up
    Add to Wish List
    $ 163.99 USD
    Free Shipping on orders $49 and up
    Add to Wish List
    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
    Selector Shaft Seal - Priced Each
    Selector Shaft Seal - Priced Each
    Victor Reinz - Corporate Logo
    T#:586742
    Part#: 23128677736
    Back Ordered
    $ 3.99 USD
    Free Shipping on orders $49 and up
    Add to Wish List
    $ 3.99 USD
    Free Shipping on orders $49 and up
    Add to Wish List
    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
    Show More Show Less

    Select Vehicle

    BMW Mini
    Clear Vehicle

    Purpose

    Category

    Brand

    Price

    $
    $

    Special Offers

    Shipping