CSF vs OEM

The original OE radiator from BMW is an aluminum core with plastic tank design. While this is very common for OE radiators, heat exchanger technology has progressed significantly over the decades since these cars were released. Older high-performance vehicles require the best possible cooling systems and can greatly benefit from improved cooling efficiency. Anyone who has restored/updated a classic car knows the value of having updated parts that are as efficient as possible.

The CSF radiator features a 1-Row 31mm aluminum core that improves heat dissipation. CSF Exclusiove B-Tube Technology increases the heat transfer by approximately 15% over regular oval welded tubes. With nearly double the number of cooling fins and tubes, the CSF Radiator will outperform the OEM unit by a significant margin. In addition, the super-efficient multi-louvered fins maximize airflow through the core for the best possible performance. The radiator mounts in the factory location and requires no modifications or cutting.

• 1-Row – 31mm Ultra-High-Performance Core
• Cooling Tubes with 
• 6.5mm Tall Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact
• CNC Machined Mounting Brackets and OEM Style Inlet/Outlet
• 100% All Aluminum TIG-Welded Construction
• Satin Black Finish for an OEM+ Look and Feel
• True Plug-and-Play “Drop-in Fit” Installation Requires Absolutely No Modifications
• Two M14x1.5 Temperature Sensor Ports on left side tank (Plugs Included)
• Individually Leak and Pressure Tested
• 2-Year Limited Warranty

• Applications:
  • 1984-1988 BMW E28 M5 (US and Euro)
  • 1984-1989 BMW E24 M635CSi
  • 1987-1989 BMW E24 M6

• OEM Part Numbers:
  • BMW: 17-11-2-226-082
  • BMW: 17-11-2-225-061
  • BMW: 17-11-2-226-018