CSF High-Performance Engine Oil Cooler for BMW M240i, M340i & M440i (B58D)
As power levels increase and driving demands become more aggressive, controlling engine oil temperature becomes critical to maintaining consistent performance. The CSF High-Performance Engine Oil Cooler was engineered specifically for BMW's B58D-powered G42 M240i, G20/G21 M340i, and G22/G23/G26 M440i platforms to provide improved thermal capacity while retaining factory fitment and functionality.
Featuring CSF's advanced microtube core technology, this upgraded cooler increases overall core volume by approximately 14% compared to the factory unit, allowing for greater heat rejection and improved temperature stability during spirited street driving, track use, and high-horsepower applications. The increased cooling efficiency helps reduce the likelihood of heat soak, power reduction, and elevated oil temperatures during extended high-load operation.
Designed as a direct replacement for the OEM oil cooler, the unit utilizes factory mounting locations, ducting, and airflow management components for a straightforward installation with no modifications required. A durable integrated rock guard provides additional protection against road debris and track hazards, helping safeguard one of the engine's most critical cooling systems.
Features
- High-efficiency 32mm microtube core design
- Approximately 14% greater core volume versus OEM
- Optimized oil flow characteristics for high-performance use
- Multi-louvered fin design for improved heat transfer
- Integrated rock guard protection
- OEM-style inlet and outlet connections
- Retains factory mounting points and ducting
- Durable robot-welded aluminum construction
- Direct bolt-in installation
- 2-Year Limited Warranty
Applications
- 2022+ BMW G42 M240i / M240i xDrive
- 2020+ BMW G20/G21 M340i / M340i xDrive
- 2021+ BMW G22/G23/G26 M440i / M440i xDrive
Fitment Notes
- Fits B58D-equipped vehicles only
- Requires BMW Motorsport Engineering Package (S33TA)
- Not compatible with B58N applications
- VIN verification recommended prior to ordering
Whether you're building a dedicated track car, running increased boost levels, or simply looking to add additional thermal capacity for demanding driving conditions, the CSF Engine Oil Cooler provides a proven solution for maintaining stable oil temperatures and protecting your B58-powered BMW.
CSF# 8372