Gates 33609 - Engine Coolant Water Bypass Gasket

Engine coolant thermostat seal gates green stripe heavy-duty thermostat seals fit securely around the thermostat valve to prevent leakage.approved for marine applications.corrosion-resistant steel construction.specially constructed to assure accurate fit. application summary:2005-1986 buick, lesabre, v-6 3.8 l, thermostat seal