Radiator, CSF - F22 228i, F30 328i, F32 428i N26 SULEV

This radiator has been discontinued by CSF. Because of the specific features of the SULEV spec the only radiator available is the Genuine version. Click here for the BMW N26 radiator or see Related Items below.

This is a replacement radiator for SULEV F22 228i, F30 328i, and F32 428i low emissions models.

N26 SULEV models: SULEV is the Super Ultra Low Emissions Vehicle status used in California, New York, Massachusetts, and some other states. This aftermarket radiator includes a special coating that converts ozone into oxygen, just like the factory BMW radiator. However, you will have to remove the factory compliance sensor from your original radiator and reinstall it on this new part. This can be a tricky process so we recommend a professional perform this work. Unfortunately, the sensor is not available separately from BMW.

CSF replacement radiators have plastic end tanks and an aluminum core for a drop-in fitment, just like the OEM design. All CSF radiators receive design and development in the USA with additional wind tunnel, vibration, thermal cycle, burst pressure, and salt spray testing done at their production facilities in Southeast Asia. During manufacturing, radiators are individually tested for leaks and receive a 30-point inspection prior to shipping. CSF is an OE supplier to several manufacturers as well as providing private-label products for other radiator brands. CSF radiators have a two year warranty.