The CSF OEM plastic radiator for 2011–2015 Kia Optima 2.4L is an OE-style replacement intended to restore the vehicle's cooling capacity for that engine and model years. The plastic-tank design matches the original radiator format for a straightforward swap. It is supplied to fit factory mounting points and connections, returning the Optima to its intended coolant management.
CSF 11-15 Kia Optima 2.4L OEM Plastic Radiator