Koyo leads the radiator industry in quality, performance and fitment. Koyo engineers carefully design the radiators offering a true plug and play installation No drilling, cutting, relocating, or stretching to get their radiators to fit properly.These OEM Koyo replacement radiators feature plastic end tanks with a aluminum core, allowing for a cost effective option compared to the OEM units. Fits 06-08 Chevrolet HHR 2.2L I4 AT 06-08 Chevrolet HHR 2.4L I4 AT