Expansion Valve Block Navistar 351234591 Volvo 85120289 71R8473

The expansion valve controls the flow of refrigerant into the evaporator. Similar to the carburetor on an engine, the expansion valve prevents flooding and starving of refrigerant supply to the evaporator. The expansion valve is partially responsible for controlling the pressures within the A/C system. Part Number: 71R8473 Type: Block Refrigerant: R-134A Rating:  Coil fittings: #8 #12 Hose fittings: #6 #12 Special Attribute: Flange Mount Special Attribute: Use With 71R8991 Allen Head Mounting Bolt, Egelhof style Interchange Numbers: 100127661512-1608A 1684 31-31345 31-31377 351234591 85120289 BOAV5778001 RD-5-16721-0P