Thermostat Housing Engine Coolant Thermostat Housing Air Vent (Bleeder Valve):No Bolt Hole Center To Bolt Hole Center:2 In.; 2.875 In.; 2.56 In.; 3.45 In. Bolt Hole Diameter:0.313 In. Bolt Hole Quantity:4 Bolts Included:No Color/Finish:Black Flange Thickness:0.25 In. Gasket or Seal Included:Yes Height:4 In. Housing Neck Angle (�):180 Deg. Inlet Port Diameter:1.75 In Material:Plastic Mount Hole Diameter:0.313 In. Mount Hole Quantity:4 O Rings Included:Not Required Outlet Diameter (in):1.37 In. Package Contents:2 Thermostats, Sensor, Gasket, Housing Thermostat Included:Yes Thermostat Opening Temperature:188 Deg. F.
