Underbody Auxiliary Heater Lines

The 2 underbody auxiliary heater lines are part of a bundle of 4 aluminum tube assemblies of various sizes bracketed together and fastened to the underbody of the vehicle.

The underbody auxiliary heater lines have these features:

• The underbody auxiliary heater inlet line is an aluminum tube assembly that carries coolant from the engine coolant supply line to the auxiliary heater core inlet.
• The underbody auxiliary heater outlet line carries coolant from the auxiliary heater core to the front heater core outlet line.