Take control of your Supra or BMW G-Series with the CSF A90 Supra / BMW G-Series Transmission Cooler. Shifts feel sharper, fluid stays cool, and your transmission performs perfectly even under track or drag strip abuse. No more sluggish shifts or overheating in long spirited drives. Your automatic transmission now keeps up with every twist of the throttle and every boost spike.

CSF developed this cooler with input from top tuners and time attack teams, testing it on some of the fastest A90 Supras in the world including Titan Motorsports Drag Race Supra. Every dyno run, track session, and real-world test ensured the dual-core design maximizes heat dissipation and fluid capacity without restricting airflow or altering OEM fitment. Transmission temperatures stay stable and shifting stays precise under extreme conditions.

Precision Engineered Design

Made with CSF AC Condenser Technology, the cooler features a dual-core design that increases overall volume by 240 percent and fluid capacity by 130 percent versus OEM. Each core is 16mm thick with 9-channel microtubes for maximum oil flow and heat transfer. Multi-louvered fins optimize cooling without blocking airflow. Drop-in design works with OEM or CSF high-performance front mount heat exchanger and uses OEM top and bottom rubber seals for optimal airflow. Quick connect style inlet and outlet make installation simple.

Configuration Options

Single CSF transmission cooler for A90 Supra and BMW G-Series, compatible with OEM and CSF high-performance front mount heat exchangers. Includes rock guard for protection.

Exhaust Tips & Customization

Not applicable, cooling upgrade only.

Production & Lead Time

Made to order in CSF facilities. Expect standard lead times of 2 to 4 weeks depending on demand. Each cooler is built with precision and quality prioritized over speed.

Fitment

⚠ Fitment Notes

The CSF #8183 will NOT fit the late production 2024 or 2025+ BMW G2X M340i or M440i models equipped with the B58N. Production of the B58D ended in 07/2024 for the M340i and 03/2024 for the M440i. You should physically check your OE Transmission Oil Cooler Part Number or call a BMW dealership with your VIN to check fitment compatability.

BMW updated the part number for the Transmission Oil Cooler for the 2025 model. 2020-2024 models use the OE 17219494828, but the 2025+ uses the OE 17218852263.

Benefits

• Dual-core design with 240 percent larger volume than OEM
• 130 percent increased fluid capacity
• Maintains optimal transmission temperatures under track, drag, or spirited driving
• 1-row super high-pressure 16mm 9-channel microtube design for maximum cooling
• Drop-in OEM style fitment, works with OEM or CSF heat exchangers
• Rock guard included for protection
• Ideal for high performance and tuned vehicles
• 2-year limited warranty

NOTE: OFF ROAD USE ONLY