Accent. A seal that prevents oil from leaking out, or contaminants from enteRing the Engine Coolant Inlet Housing. Engine Coolant Outlet Gasket. Engine Coolant Outlet O-Ring. Engine Coolant Thermostat Housing O-Ring. Gasket for Engine Coolant Water Inlet. Inlet Flange O -. Thermostat Housing O -. Controller o -. Water valve o -. Included with: Control assembly, Control valve, Controller, Outlet assembly, Outlet assy, Water Inlet, Water Outlet, Water valve.