BMS F Chassis Gen 1 B58 BMW Transmission Oil Cooler

Burger Motorsports

  • $867.99
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Keep your transmission temps low for better performance and longevity

Everyone knows that high heat is the enemy of your automatic transmission. And that higher power levels generate more transmission fluid heat which will cause trans slip. Now you can extend the life of your automatic transmission by installing the new Burger Motorsports High Capacity B58 Gen1 Trans Cooler kit. This unique plug and play kit replaces your factory coolant to trans fluid heat exchanger with a high-capacity front-mounted air to trans fluid radiator. Includes all mounting hardware, lines, and coolant caps required for installation. Installs within the front bumper behind the driver side kidney grills providing ample airflow over the large cooling core via existing openings. The result is dramatically reduced transmission temperature and extended transmission life. This kit is strongly suggested for any BMW B58 Gen1 F chassis automatic car running larger than factory turbos.

165ºF (74ºC) transmission oil cooler Improved Racing thermostat included
The thermostat maintains the oil exiting the transmission at the rated minimum temperature in most conditions. Without a thermostat, the transmission fluid coolers are likely to over-cool the fluid, delaying transmission warm-up and performing the critical function of bypassing the cooler until the oil has reached its minimum operating temperature.


• Dissipates excess transmission fluid heat
• Reduces transmission fluid temperature
• Increases transmission life when racing
• Increases transmission oil capacity

Gen 1 B58 Vehicle Fitment

BMW 1 Series
• 2015+ F20 F21 B58 M140i

BMW 2 Series
• 2016-2021 F22 F23 B58 M240i/iX

BMW 3 Series
• 2016-2019 F30 F31 F34 B58 340i/340iX

BMW 4 Series

• 2016-2020 F32 F33 F36 B58 440i/440iX/Gran Coupe

What's included:

(1) High capacity transmission oil cooler
(2) Brackets
(1) Billet adapter
(2) Coolant plugs
(1) Improved Racing 165F Thermostat + fittings
(4)-10 AN crimped PTFE/SS/Nylon covered lines

(6) M6x1.0x12mm bolts, washers and nuts
(1) M6x1.0x20mm bolt

Compatible with both RHD and LHD, RWD and AWD, ZF8HP50 and ZF8HP70 Transmissions.

Not compatible with manual transmissions.


Install guide available shortly.

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