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BMW Transmission Parts

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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Bav Auto Differential, Transfer Case, Transmission Oil-Pan Wrench
Bav Auto Differential, Transfer Case, Transmission Oil-Pan Wrench ...
Bav Auto Tools - Corporate Logo
T#:580353
Part#: B8800025
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$ 24.74 USD
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$ 32.99

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The proper size for removing BMW drain plugs.
CSF Performance DCT Transmission Cooler - F8x M3/M4
CSF Performance DCT Transmission Cooler - F8x M3/M4
2X Entries For Our G87 M2 Sweepstakes!
CSF - Corporate Logo
T#:401085
Part#: 8081
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$ 499.00 USD
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$ 499.00 USD
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Featuring a dual-core design that provides a 67% increase in cooling rows for greater cooling efficiency, the CSF Performance DCT Transmission Cooler is the ultimate plug-n-play transmission cooler. This radiator utilizes a single row, high pressure, 26mm multi channel microtube and fits the stock location, giving you a 30% increase in cooling efficiency with an easy and simple installation.
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Bav Auto Automatic Transmission Filter Kit - E82/88 128, E9X 328, E83 X3 (GA6L45R Transmission)
Bav Auto Automatic Transmission Filter Kit - E82/88 128, E9X 328, E83...
Bavarian Autosport - Corporate Logo
T#:639806
Part#: 24117593565
In Stock
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This product was last offered at the strikethrough price on
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$ 31.99 USD
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Remember to service your transmission at the recommended intervals to increase your transmission's life span and reliability! From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Bremmen Automatic Transmission Pan With Transmission Filter - F22 F30 F10 G30 F06 F01 G11 F25 G01 Z4
Bremmen Automatic Transmission Pan With Transmission Filter - F22 F30...
For GA8HP70, GA8HP76, GA8HP75, GA8HP51, GA8HP50, or GA8HP45Z automatic transmissions - Does not fit GA8P Hybrid Transmissions
Bavarian Autosport - Corporate Logo
T#:579886
Part#: 55182
In Stock
Sale - Save 17% $ 138.99

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

$ 115.99 USD
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Sale - Save 17%
$ 138.99

This product was last offered at the strikethrough price on
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$ 115.99 USD
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GA8HP 8 speed automatic transmission. Automatic transmissions are reliable, shift smoothly, and can last without issue so long as they are properly maintained. Over time, the transmission fluid becomes thick and the filter becomes contaminated with small metal particles. This can cause excess wear, high transmission operating temperatures, and eventual failure. To prevent this we recommend changing your filter, fluid, and seals to ensure your transmission continues to operate flawlessly. We recommend filter and fluid changes every 50,000 miles. This item fits the following BMWs: E71,E89 Z4,F06,F10,F12,F13,F15,F16,F22,F25 X3,F26 X4,F30,F31,F32,F33,F34,F36
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CSF Race-spec DCT/6speed Transmission Oil Cooler - E9x M3 S65, E9X 335 N54 N55
CSF Race-spec DCT/6speed Transmission Oil Cooler - E9x M3 S65, E9X 33...
2X Entries For Our G87 M2 Sweepstakes!
CSF - Corporate Logo
T#:384660
Part#: 8042
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$ 449.00 USD
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$ 449.00 USD
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CSF is one of the premier cooling product specialists available on the market today. One item that is often overlooked is the oil cooler. Luckily CSF has taken up the task of upgrading the oil cooler as well. If the oil runs too hot, it can lead to a reduction in wear protection and damage to the head, block, or the turbo system. This unit features a dual-pass design with 20% more surface area and 30% greater efficiency than stock, but still fits in the stock location without any issues. Alternative to OE # 17227521376 Fits the following BMW: 2006-2013 E9X BMW M3 335 2009-2015 E84 BMW X1 35iX
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BMW S58 G8X High Performance Automatic Transmission Oil Cooler
BMW S58 G8X High Performance Automatic Transmission Oil Cooler ...
2X Entries For Our G87 M2 Sweepstakes!
CSF - Corporate Logo
T#:13233495
Part#: 8221
In Stock
$ 599.00 USD
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$ 599.00 USD
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Introducing the High-Performance Automatic Transmission Oil Cooler for your G80 M3 or G82/83 M4 from CSF! The folks at CSF have created a full suite of cooling products for the G8X chassis. If you are looking to push your BMW to the limits, look no further.
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Bav Auto Automatic Transmission Filter Kit - E39 E46 Z4 (A5S325Z Transmission)
Bav Auto Automatic Transmission Filter Kit - E39 E46 Z4 (A5S325Z Tran...
Bavarian Autosport - Corporate Logo
T#:639803
Part#: 24341423376
In Stock
Sale - Save 20% $ 29.99

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

$ 23.99 USD
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$ 29.99

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Remember to service your transmission at the recommended intervals to increase your transmission's life span and reliability! From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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M18 Automatic Transmission Fill Plug - BMW
M18 Automatic Transmission Fill Plug - BMW
Bavarian Autosport - Corporate Logo
T#:22690760
Part#: 24117552349
In Stock
Sale - Save 11% $ 8.99

This product was last offered at the strikethrough price on
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$ 7.99 USD
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$ 8.99

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Fits various BMW Transmissions. Includes rubber sealing washer/o-ring.
Bav Auto Transmission 17mm Drain Plug Wrench - Manual Transmission
Bav Auto Transmission 17mm Drain Plug Wrench - Manual Transmission ...
Bav Auto Tools - Corporate Logo
T#:580447
Part#: B8800142
In Stock
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This product was last offered at the strikethrough price on
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$ 14.99 USD
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Makes changing your transmission fluid an easy task. 1/2 " drive, for use in BMWs with 17mm female allen transmission drain plugs.
Race-Spec Dual-Clutch Transmission Oil Cooler - F8X M3 M4
Race-Spec Dual-Clutch Transmission Oil Cooler - F8X M3 M4
VF Engineering - Corporate Logo
T#:25971912
Part#: VF-DCTCOOLERF8X
Ships on Aug 31, 2026
$ 599.00 USD
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$ 599.00 USD
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This heat exchanger features a dual-pass high-performance core that offers 30% more efficiency than its factory counterpart. This kit will keep your transmission fluid cool no matter the outside temperature!
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CSF High-Performance Heat Exchanger & Transmission Cooler Module - F97 X3M, F98 X4M
CSF High-Performance Heat Exchanger & Transmission Cooler Module - F9...
2X Entries For Our G87 M2 Sweepstakes!
CSF - Corporate Logo
T#:38229113
Part#: 8331
Ships in 3 Business Days
$ 1,289.00 USD
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$ 1,289.00 USD
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The F97 X3M and F98 X4M are powered by the same high-performance S58 engine found in the G8X M3, M4, and M2. While these SUVs deliver impressive power and speed, they also suffer from the same heat management challenges as their sedan and coupe counterparts. That’s where CSF’s advanced cooling solutions come in—becoming essential upgrades for S58 owners, even for those keeping their engines mostly stock. After over a year of development and testing, CSF is proud to introduce the Front Mount Heat Exchanger & Transmission Cooler Module for the F9X X3M and X4M. One of the biggest challenges in developing a Front Mount Heat Exchanger for these models was limited space. Unlike the G8X models, the X3M and X4M feature a different transmission oil cooler, restricting the available room for a larger heat exchanger due to the mounting cradle. After extensive testing with smaller core designs, CSF determined that integrating the Heat Exchanger with a Transmission Cooler Upgrade was the optimal solution for maximizing both size and performance. By combining both components into a single cooling module, CSF achieved a design that accommodates the same core size as the G8X Heat Exchanger. The integrated Auto Transmission Cooler utilizes the same dual-core design as the G8X Transmission Cooler and is seamlessly fitted to the new Heat Exchanger. This innovative all-in-one module not only addresses two major cooling issues for the X3M and X4M but also reduces overall costs—savings that are passed along to the customer. Compared to the stock heat exchanger, CSF’s upgraded design offers significant improvements. The TIG-welded aluminum tanks are much larger than the OE plastic tanks, providing superior strength and fluid volume. A 2-row 42mm core increases cooling efficiency and capacity, utilizing CSF’s Exclusive B-Tube Technology to enhance airflow and heat dissipation. Multi-louvered fins further expand the heat exchange surface area, improving overall cooling performance while maintaining proper airflow. Built entirely from high-strength aluminum, this system ensures maximum durability and reliability. The mounting tabs and brackets are significantly stronger than the factory plastic components, offering improved longevity. Additionally, the heat exchanger includes an integrated bolt-on metal rock guard, which is far more robust than the stock plastic version—providing better protection against road debris and ensuring greater confidence in the system’s resilience. CSF’s Transmission Cooler features an innovative dual-pass design that dramatically enhances cooling performance. Unlike the OEM single-core cooler, CSF’s front-to-back stacked core design more than doubles the surface area and nearly triples the core volume. Engineers leveraged the extra space freed up by replacing the OE cooler and oversized plastic cradle, effectively doubling cooling capacity while maintaining a perfect OEM fit—no modifications required. By switching from a single-core to a dual-core design, CSF achieved a 201% increase in overall volume, significantly improving heat dissipation and fluid capacity. Using CSF’s AC Condenser Technology, the cooler incorporates a high-pressure 1-row 16mm 9-channel microtube design, optimizing oil flow and maximizing surface area contact. These features work together to provide the most effective heat dissipation possible, keeping transmission temperatures under control even under extreme conditions. With CSF’s new Front Mount Heat Exchanger & Transmission Cooler Module, X3M and X4M owners can enjoy superior cooling efficiency, enhanced durability, and long-term performance—all in a cost-effective, OEM-fit package.
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CSF Universal Large Single-Pass Oil Cooler - Universal Application
CSF Universal Large Single-Pass Oil Cooler - Universal Application ...
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
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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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Pure Drivetrain 8HP51 High Performance Transmission Hard Parts Kit - Stage 2 - BMW G2X G42 G01 G02 xDrive
Pure Drivetrain 8HP51 High Performance Transmission Hard Parts Kit - ...
Pure Drivetrain Solutions - Corporate Logo
T#:50136699
Part#: 12-94-2000
In Stock at Vendor
New Item
$ 4,999.99 USD
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$ 4,999.99 USD
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We all love the ZF 8HP for its lightning-fast shifts, but as many BMW owners discover, it’s not invincible. If you’ve pushed your build past the factory power limits, you’re likely feeling the dreaded "trans slip." Before you spend five figures on a replacement, check out the Hard Parts Kit from Pure Drivetrain Solutions. This kit targets the specific failure points of the 8HP, reinforcing the transmission from the inside out.
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Pure Drivetrain ATC 13-1 Transfer Case Kit - AWD High Performance Hard Parts Kit
Pure Drivetrain ATC 13-1 Transfer Case Kit - AWD High Performance Har...
Pure Drivetrain Solutions - Corporate Logo
T#:54566515
Part#: PDS13-0131-1000
In Stock at Vendor
New Item
$ 1,799.99 USD
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$ 1,799.99 USD
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Don't let your transfer case limit your build's potential. Upgrade to Pure Drivetrain Solutions and lock down your drivetrain integrity.
Bav Auto Temperature Sensor - BMW E39 E46 E9X E60 F01/02
Bav Auto Temperature Sensor - BMW E39 E46 E9X E60 F01/02
Bavarian Autosport - Corporate Logo
T#:639833
Part#: 13621433076
In Stock
Sale - Save 20% $ 14.99

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

$ 11.99 USD
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$ 14.99

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This is the coolant temperature sensor used in many BMW models from the late-1990s to the mid-2010s. The engine computer relies on the coolant temp to set the fuel mapping for the engine. As the car warms up the computer changes the fuel mixture. If your car is running a bit rich (too much fuel) it could be because this sensor is failing and not sending the correct info to the computer. This sensor is located in a variety of places depending on the engine. But it's one of those easy replacement items 'while you're in there' when doing a water pump or thermostat replacement. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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