Integrated Housing Thermostat-180 Degrees w/ Seal Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Bolt Hole Quantity: 2 Bolts Included: No Color: Silver Gasket/Seal Material: Rubber Hardware included: No Installation Tool Included: No Jiggle Pin Included: No Material: Metal Mounting Hardware Included: No Bleeder Hole: No Bolt Hole Center To Bolt Hole Center: 2.98 Flange Length: 3.94 Flange Thickness: 0.39 Flange Width: 3.94 Gasket Or Seal Included: Yes