Heat Exchanger Gasket, Mercruiser

Heat Exchanger Gasket for Mercruiser Stern Drive. Diameter: 3 15/16". Fits: 3.7L w/ 4 inch heat exchanger. Meets or exceeds manufacturer's recommended specifications. Backed by Sierra's limited lifetime warranty. Diameter: 3 15/16" Fits: 3.7L w/ 4 inch heat exchanger Meets or exceeds manufacturer's recommended specifications Backed by Sierra's limited lifetime warranty