BMW E46 M3 Performance Engine Cooling Radiator By CSF 17102228941

Upgrade your BMW E46 M3's cooling efficiency with the high-performance CSF Radiator, designed specifically for enthusiasts who demand top-level performance. This all-aluminum radiator features a robust 3-row core that significantly enhances your engine’s cooling capabilities. Engineered with CSF’s proven quality and precision, this radiator is a reliable choice for high-performance applications and everyday driving alike.

The CSF performance radiator offers a number of notable features aimed at providing superior heat dissipation. Its 2-row 42mm core uses exclusive B-Tube technology, ensuring optimal flow and cooling efficiency. In the latest update for 2026, CSF has incorporated "Track-Spec" 5mm tall ultra-efficient fins with a multi-louvered design. This ensures maximum surface area contact for enhanced heat dissipation, a crucial factor for maintaining your engine's optimal temperature.

Additionally, the triple-pass flow structure allows coolant to flow across the core three times before exiting, achieving the lowest possible outlet temperatures. Installing the CSF radiator is a breeze. It comes with CNC machined "Quick Connect" inlet/outlet connections and is designed for a "drop-in fit," utilizing all OEM components, including quick connect hoses, AC condenser, mounting brackets, and fan shroud without needing modifications.

This radiator replaces the OEM part number 17102228941, ensuring a perfect fit and function. It combines durability with performance while featuring an aesthetically pleasing smooth satin finish for that added touch of style.

1. All-aluminum construction with higher capacity 3-row core
2. CNC machined brackets and fittings for a superb fit
3. Patented B-Tube Technology enhances coolant flow
4. Triple-pass design lowers outlet temperatures
5. Includes all aluminum race-style drain plug