All-aluminum triple-pass performance radiator for the 2001-2006 BMW M3 (E46). The triple-pass flow structure carries coolant across the core three times before exiting for the lowest possible outlet temperatures, over a 2-row 42mm dual core using CSF's exclusive B-Tube technology and 6.5mm-tall multi-louvered fins. It drops in with no modifications and accepts the OEM quick-connect hoses, AC condenser, brackets, and fan shroud. CNC-machined brackets and quick-connect fittings, an all-aluminum race-style drain plug, and a smooth satin finish complete it.
| Type | Triple-pass all-aluminum radiator (B-Tube technology) |
| Material | All-aluminum |
| Core | 2-row 42mm dual core, triple-pass |
| Fins | 6.5mm multi-louvered |
| Inlet / Outlet | CNC-machined quick-connect |
| Finish | Smooth satin |
| Fit | Drop-in; accepts OEM hoses, AC condenser, brackets, and fan shroud |
| OEM Replacement | 17102228941 |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2001-2006 | BMW | M3 | Base |
