6 CYLINDER. front pipe. A coolant hose that feeds coolant back to the overflow or recovery bottle in a closed loop cooling system. Flexible hose that is part of the engine cooling system. Breather tube. By - PASSENGER hose. Connector hose. Engine Coolant Overflow Hose. Hose AND AMPLIFIER; tube ASSEMBLY. Radiator Coolant Hose. Radiator hose. Reservoir hose. UPPER hose AND AMPLIFIER; tube. UPPER return hose. UPPER return tube. Vent hose. Vent tube. Water hose ASSEMBLY.