CSF, The Cooling Experts, have been serving the US aftermarket for almost 4 decades. With over 30 million units sold, CSF is your exclusive source for Radiators, Condensers, Intercoolers, Inverter Coolers, Racing Radiators and Pressure Caps.
Ultra-Efficient 42mm 2-Row Core, with CSF’s B-Tube Technology, and 6.5mm Multi-Louvered Fin Height
Results in Optimized Airflow Through the Heat Exchanger Core and Into Other Cooling System Components for Maximum Performance of the Entire Cooling System (Especially Critical if Installed in an X-Drive Model with Transmission Oil Cooler Placed in Front of Heat Exchanger)
Triple-Pass Flow Design
Upgraded Inlet/Outlet Design with New Tapered Entry and Exit Points from End Tanks, Resulting in Optimized Water Flow and Increased Performance (Matches OEM Spec)*
Included Detachable Rock Guard
OEM CNC Machined Mounting Location Pins and Brackets
Direct Plug-and-Play Design, Including CNC Machined “Quick Connect” Inlet/Outlet Water Fittings
Includes Hardware Mounting Kit* for Applications That Have a Factory Transmission Oil Cooler Mounted in Front of the Heat Exchanger (X-Drive Models)
No Modifications Needed to Install
For a More in Depth Look Please Check out the CSF B58 Heat Exchanger Press Release
OEM #: 17118741830 & 17118625431
This Part Fits:
| Year |
Make |
Model |
Submodel |
| 2017-2021 |
BMW |
230i |
Base |
| 2017-2021 |
BMW |
230i xDrive |
Base |
| 2014-2018 |
BMW |
320i |
Base |
| 2016,2018 |
BMW |
330e |
Base |
| 2017 |
BMW |
330e |
iPerformance |
| 2017-2018 |
BMW |
330i |
Base |
| 2017-2018 |
BMW |
330i GT xDrive |
Base |
| 2017-2019 |
BMW |
330i xDrive |
Base |
| 2016-2018 |
BMW |
340i |
Base |
| 2017-2019 |
BMW |
340i GT xDrive |
Base |
| 2016-2018 |
BMW |
340i xDrive |
Base |
| 2017-2020 |
BMW |
430i |
Base |
| 2017-2020 |
BMW |
430i xDrive |
Base |
| 2017-2020 |
BMW |
440i |
Base |
| 2017-2018 |
BMW |
440i Gran Coupe |
Base |
| 2017-2020 |
BMW |
440i xDrive |
Base |
| 2017-2021 |
BMW |
M240i |
Base |
| 2019-2020 |
BMW |
M240i xDrive |
Base |
