22x3.0. 4.0 LITER. PartQualifier: 20x2.0. PartQualifier: 22x3.0. Water inlet o-ring. A seal that prevents oil from leaking out, or contaminants from enteRing the Cooling System Crossover Line. A seal that prevents oil from leaking out, or contaminants from enteRing the Engine Coolant Inlet Housing. All Required. Engine Coolant Bypass Pipe O-Ring. O-Ring. hose o -. Cooling System Crossover Line O -. Engine Bypass O -. Engine Flange O -. Intake tube o -. Included with: Inlet hose, Intake tube, Tube Part cannot be reused/reinstalled, Water Inlet Pipe.