Part Number: C17951. MAHLE(R) gaskets provide world class sealing products trusted by OEMs & Technicians around the globe. Engine Coolant Thermostat Housing Gasket. The engine types may include 2.2L 2156CC l4 GAS DOHC Naturally Aspirated,2.7L 2675CC V6 GAS SOHC Naturally Aspirated.