2.8 LITER. 2003-05. Coupling. PartQualifier: upper. upper. Cooling System Bypass Line Adapter. From Chassis/VIN 3C-7-120 001. Lower Radiator Coolant Hose. Radiator Coolant Hose Adapter. Upper Radiator Coolant Hose. and Amplifier; tube Assembly. Body. Cooling System Bypass Line Adapter. COUPLPIECE. Elbow. Inlet. Outlet. Radiator Coolant Adapter. Temperature sensor T - connector. Union. Z Adapter. Included with: Lower Hose, Upper Hose, Water Hose Assembly.