This o-ring seals the joint between the heater core body and the plastic inlet or outlet hose connector. Use one o-ring per connector (2 per heater core)Genuine is a collection of OEM supplied auto parts designed to bring you factory quality parts in a "white box" providing quality auto part at unbeatable prices

This o-ring seals the joint between the heater core body and the plastic inlet or outlet hose connector. Use one o-ring per connector (2 per heater core)Genuine is a collection of OEM supplied auto parts designed to bring you factory quality parts in a "white box" providing quality auto part at unbeatable prices