1970 Marcos GT Engine: 3.0L L6;. 1971 Marcos GT Engine: 3.0L L6;. 1972 Marcos GT Engine: 3.0L L6;. Part Type: Engine Coolant Outlet Seal. Engine Coolant Outlet Gasket. Eng Coolant Gasket. Ensure that this part fits your vehicle by entering your vehicle's Year, Make, Model, Trim, and Engine in the Compatibility Table.
