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SKU: 8131
BMW F3X/F2X B58/B48 Triple-Pass Heat Exchanger w/ Rock Guard
$695.00
CSF High-Performance Front Mount Heat Exchanger for BMW F-Chassis B48/B58 (CSF #8131):
- 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
- Replaces OEM Part#: 17118741830 & 17118625431
2-Row 42mm Core
Two-row, 42 mm high-performance core.
Triple-Pass Flow
Triple-pass coolant routing for extended dwell time.
B-Tube Technology
CSF B-Tube core design for greater surface area and flow.
- BMW F22 / F23 2-Series – 230i, 230i xDrive, M240i, M240i xDrive (2017–2021)
- BMW F30 / F31 3-Series – 330e (2016–2018), 330i, 330i xDrive (2017–2019), 340i, 340i xDrive (2016–2018)
- BMW F34 3-Series Gran Turismo – 330i GT xDrive (2017–2018), 340i GT xDrive (2017–2019)
- BMW F32 / F33 4-Series – 430i, 430i xDrive, 440i, 440i xDrive (2017–2020)
- BMW F36 4-Series Gran Coupe – 430i xDrive, 440i, 440i xDrive (2017–2020)
An additional hardware mounting kit is included for applications with a factory transmission oil cooler mounted in front of the heat exchanger (xDrive models). Contact IND Distribution and we will confirm the correct application for your vehicle.
What is the warranty?
This heat exchanger is covered by a 2-year limited warranty against defects in materials and workmanship, to the original purchaser of the vehicle in which it was installed.
Does installation require modification?
No. It is a direct plug-and-play design using the OEM CNC machined mounting location pins and brackets, with CNC machined quick-connect inlet and outlet water fittings. No modifications are needed to install.
What is included?
A detachable rock guard, and a hardware mounting kit for applications that have a factory transmission oil cooler mounted in front of the heat exchanger, as on xDrive models.
What does the design change?
An ultra-efficient 42mm 2-row core with CSF's B-Tube technology and 6.5mm multi-louvered fin height, in a triple-pass flow design. The upgraded inlet and outlet use new tapered entry and exit points from the end tanks for optimised water flow. Airflow through the core is improved, which matters most on an xDrive model with a transmission oil cooler sitting in front of the heat exchanger.
Which factory parts does it replace?
BMW part numbers 17118741830 and 17118625431.
