Standard-Flow Thermostat, Chevy, GMC, Hummer, Isuzu, Pontiac, Saab, 160 degrees, Sealing Flange O.D.: 2.13 in., Copper Case & Wax Compound, Stainless Steel Triple-Bridge|JEGS Standard-Flow 160 degree Thermostat for Chevy, GMC, Hummer, Isuzu, Pontiac, Saab.