2004-06. 4.2 LITER. Check valve o-ring. 7.6 x 1.8mm. A component which prevents leaks at the Air Conditioning Refrigerant Pressure Sensor. A component which seals the A/C Service Valve Core to it's mounting point. A seal that prevents oil from leaking out, or contaminants from enteRing the Air Conditioning Refrigerant Pressure Switch. A seal that prevents oil from leaking out, or contaminants from enteRing the Air Conditioning Refrigerant Temperature Sensor. A/C Condenser Seal. A/C Line O-Ring. A/C Refrigerant Line O-Ring. Part cannot be reused/reinstalled. Part cannot be rused/reinstalled. Part Serviced with AC Line. Included with: AC Line, AC tube, Condenser, Condenser to rear hose AC hose, Discharge hose, Front AC Line, Hose and tube assembly, Liquid Line, Pressure hose, Pressure Line, Rear AC Line, Valve AC Line Part cannot be reused/reinstalled.