Description CSF 8372 Engine Oil Cooler for BMW M240i (G42) / M340i (G20 / G21) / M440i (G22 / G23 / G26) When designing this new cooler, CSF wanted to ensure the best possible performance with factory like fitment. This oil cooler is a truly unique design using CSF’s AC Condenser Technology. The 1-Row Super-High Pressure 32mm 10-Channel Microtube provides optimal oil flow and maximum surface area contact. The CSF Oil Cooler utilizes a Super-High Pressure Microtube core which offers superior cooling performance over the traditional tube and fin design of the OE unit. The core volume was increased by 14% by increasing the core thickness from 28mm to 32mm. - 8mm Tall Multi-Louvered Fin - Made with CSF’s AC Condenser Technology Using a 1-Row Super-High Pressure 32mm 10-Channel Microtube for Optimal Oil Flow and Maximum Surface Area Contact - Utilizes OEM Top/Bottom Rubber Seals for Optimal Airflow - OEM Style Inlet/Outlet Connections - Drop-in Fit Install - 2-Year Limited Warranty - Ideal for Road Racing, Drag Racing, and Vehicles With Increased Performance

Applications: - 2022-2026 BMW G42 M240i (incl. xDrive) with the Motorsport Engineering Package (S33TA) - 2020-2024 BMW G2X M340i (incl. xDrive) with the Motorsport Engineering Package (S33TA) - 2021-2024 BMW G2X M440i (incl. xDrive) with the Motorsport Engineering Package (S33TA)

OEM Part Number: - BMW: 17-21-8-666-121

Fitment Note:  Only Fits G2X Models with the BMW B58D Motor. If your M340i or M440i has the B58N Motor, the Engine Oil Cooler was not available. Please check your VIN to be sure you have the S33TA Motorsport Engineering Package and B58D motor. You will need to drill out the two rivet nuts to remove the two oil cooler bash guards. CSF supplies new threaded M6 rivet nuts and m6 bolts to secure the bash guards upon installation of the CSF oil cooler