3.5 LITER. Engine Coolant Housing where a Thermostat is used but not included. Engine Coolant Thermostat Gasket. Engine Coolant Thermostat Housing Seal. Engine Coolant Thermostat O-Ring. Engine Coolant Thermostat Seal. O-Ring. Thermostat Gasket. cover. Housing. O - Ring. Gasket. Inlet connector. Water Neck. Included with: Thermostat, Thermostat Housing, Thermostat unit, Water manifold.