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 09-11 Toyota COROLLA 1.8L I4 AT 09-11 Toyota MATRIX 1.8L I4 AT 09-10 Toyota COROLLA 1.8L I4 AT