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This Gates thermostat gasket is specified for 1979–1986 GMC C2500 pickup trucks equipped with the 5.7L V8 and features a 1.81-inch hole dimension. Intended as the sealing component for the thermostat housing on those model years and engine combination, it provides the correct opening size to match the listed thermostats and housing interfaces for the specified GMC C2500 applications.
Gates 79-86 GMC C2500 Pickup 5.7L V8 Thermostat Gasket - 1.81in Hole
