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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Pentosin - Corporate Logo
T#:348645
Part#: BF1P4
In Stock
$ 19.99 USD
Free Shipping on orders $49 and up
Boiling Point - Dry 265°C (509°F) / Wet >165°C (329°F)
Elring Selector Shaft Seal - E36, E39, E46, E36 Z3
2X Entries Into Our F80 M3 Sweepstakes
Elring - Corporate Logo
T#:340660
Part#: 23121222677
In Stock
$ 5.14 USD
Free Shipping on orders $49 and up

Rubber seals are often hardened and damaged by excessive heat and constant temperature changes causing them to become brittle and crack or split. If your seal has split, replace it with a new Elring seal for long reliability and to prevent further problems.

Elring is one of the biggest OEM names in the manufacturing of high quality gaskets that are available for very affordable prices. Elring has supplied many automotive names for years with the gaskets that seal your car's components from day 1 so you can rest assured that these components will last for a long time to come!

Fits the following BMW's:
E36, E39, E46, E36 Z3

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Meistersatz - Corporate Logo
T#:403820
Part#: 24341422152
In Stock
$ 4.99 USD
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$ 4.99 USD
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Used in various parts of the transmission

Redline - Corporate Logo
T#:3604
Part#: ATFD4
In Stock
$ 18.99

This product was last offered at the strikethrough price on
06-15-2026

$ 18.89 USD
Free Shipping on orders $49 and up
$ 18.89 USD
Free Shipping on orders $49 and up
D4 ATF is a full-synthetic product designed with superior low-temperature properties compared to a Dexron III� fluid, and the improved shear-stability requirements which are part of the Mercon V� specifications. Synthetic D4 ATF is suitable for use where Dexron III, Dexron II, or Mercon fluids are recommended. D4 ATF also provides a GL-4 level of gear protection, making it a superior product for transmissions and transaxles. The balanced frictional characteristics provide smooth and consistent shifts for extended drain intervals. The superior stability compared to petroleum ATFs allows high-temperature operation without varnishing valves and clutches which leads to transmission failure. D4 is similar to Red Line's MTL formula and can be used in many BMW manual transmissions where MTF or MTF-LT2 is called for. Meets or exceeds the following BMW & MINI specifications: 83 22 9 407 807 (LT 71141) 83 22 0 024 359 (ETL-8072B) 83 22 0 026 922 (ETL-7045E) Dexron� III ESSO LT71141 MTF-LT-1 MTF-LT-2 Toyota Type-IV
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Elring - Corporate Logo
T#:13243
Part#: 23121205340
In Stock
$ 4.99 USD
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SHAFT SEAL:H23120
Redline - Corporate Logo
T#:394725
Part#: REDLINE1A
In Stock
$ 18.99

This product was last offered at the strikethrough price on
06-16-2026

Starting at $ 18.89 USD
Free Shipping on orders $49 and up
Starting at $ 18.89 USD
Free Shipping on orders $49 and up

All sets of 12 now 10% off regular price!

Synthetic D4 ATF is suitable for use where Dexron III, Dexron II, or Mercon fluids are recommended. ATF D4 is similar to Red Line's MTL formula and can be used in many BMW manual transmissions where MTF or MTF-LT2 is called for. The D4 ATF provides significantly improved gear protection than most OEM oils. The balanced frictional characteristics provides smooth and consistent shifts for extended drain intervals. The superior stability compared to petroleum ATFs allows high-temperature operation without varnishing valves and clutches which leads to transmission failure.

Features:

  • Provides G-4 level gear protection (suitable for transmissions and transaxles, like the Corvette T-56).
  • Provides smooth and consistent shifts.
  • More stable than petroleum fluids; suitable for extended drain intervals.
  • Does not varnish at high temperatures.
  • Improved cold weather characteristics.
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Genuine BMW - Corporate Logo
T#:12565
Part#: 25111220439
In Stock
$ 3.99 USD
Free Shipping on orders $49 and up
Plastic washer used in various points of the shifter mechanism.
Elring - Corporate Logo
T#:375352
Part#: 23111228314
In Stock
$ 7.13 USD
Free Shipping on orders $49 and up
For vehicles with manual transmission only

CSF Universal Large Single-Pass Oil Cooler - Universal Application ...
2X Entries Into Our F80 M3 Sweepstakes
Universal fitment design - modifications may be necessary to run this cooler
CSF - Corporate Logo
T#:53608839
Part#: 8371
Ships in 3 Business Days
New Item
$ 499.00 USD
Free Shipping
$ 499.00 USD
Free Shipping
CSF redesigned this cooler and went with a more traditional inlet/outlet orientation. The new single pass design features high efficiency and high durability, but with vertically oriented inlet and outlet connections.
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ZF - Corporate Logo
T#:594165
Part#: 23221201330
In Stock at Vendor
$ 7.13 USD
Free Shipping on orders $49 and up
Replacement Lock Plate For Output Flange Nut from ZF
High Performance Gear Oil (GL4+) SAE 75W-90 (20L JUG)
10X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Liqui-Moly - Corporate Logo
T#:577975
Part#: 20014
Ships in 1 Business Day
$ 500.99 USD
$ 500.99 USD

Turner Motorsport recommends flushing and replacing your manual transmission and differential fluid regularly to ensure proper component wear and prevent costly issues in the future. Refer to your owner's manual for specific intervals for flushing and refill.

Liqui Moly Gear Oil for your BMW

This fully synthetic 75w90 weight gear oil is designed to maintain smooth shifting in your transmission. Its unique multi-viscosity formula provides excellent protection in all weather conditions. Being fully synthetic, it guarantees smoother shifts across all vehicles.

Note: Verify that your application requires GL4 oil. This product meets API GL-4+ specifications.

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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
component for manual transmissions.


Rein TRANSMISSION SEAL (40X58X10) - E12, E21
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:19834
Part#: 24111207426
Ships in 3 Business Days
$ 13.99 USD
Free Shipping on orders $49 and up
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.
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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 1 Business Day
$ 4.07 USD
Free Shipping on orders $49 and up
$ 4.07 USD
Free Shipping on orders $49 and up
10x18x5mm seal - stop leaks in their tracks
Rein - Corporate Logo
T#:379685
Part#: 24311422671
Ships in 3 Business Days
$ 10.99 USD
Free Shipping on orders $49 and up
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.
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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#:7616
Part#: 25111207744
In Stock
$ 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

 

Pentosin - Corporate Logo
T#:46134785
Part#: 1058111
In Stock
$ 35.99 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 Nov 9, 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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    Meyle Automatic Transmission Fluid Plus 9 - 1 Liter
    5X Entries Into Our F80 M3 Sweepstakes
    Meyle - Corporate Logo
    T#:55569543
    Part#: 0140193200
    Ships on Nov 9, 2026
    New Item
    $ 27.99

    This product was last offered at the strikethrough price on
    10-02-2026

    $ 26.99 USD
    Free Shipping on orders $49 and up
    $ 26.99 USD
    Free Shipping on orders $49 and up
    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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    Motul - Corporate Logo
    T#:2249
    Part#: MOTY-75W80-1L
    Ships on Nov 13, 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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    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
    In Stock
    $ 163.99 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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