Integrated Housing Thermostat-176 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: Plastic, Stainless Steel, Copper Mounting Hardware Included: No Bleeder Hole: No Gasket Or Seal Included: Yes