GM Genuine Parts Auxiliary A/C Evaporator and Heater Hose Assemblies are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These auxiliary A/C evaporator and heater hose assemblies are for use with vehicles that have rear A/C. The hose assemblies contain the auxiliary evaporator connecting hose and lines that connect the rear evaporator to the front A/C lines. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).