This POA Update Kit is designed for use with R-12 refrigerant. Fits many GM and Ford applications.
Before 4/15/73
POA Update Kit replaces the original POA Valve to convert the A/C system to a cycling clutch system as found on later model vehicles to eliminate problems with sticking internal piston.
This kit includes: Pressure Switch, Wire Harness and fitting to replace POA valve with ports for oil bleed line from evaporator, and equalizer tube from expansion valve.
US Patent # 5918476
Made in the USA!