6590HK18, 6590RK18 #01B308
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Model Numbers: 6590HK18, 6590RK18
Repair Parts for Rol-Air 6590HK18, 6590RK18 Air Compressor Parts
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Pilot Unloader Valve, Cut-In/Cut-Out PSI is 105/135 PSI #1162AD
Price: $47.41Old Part Numbers: 131B, MF131B, BG1-M-135Air compressor pilot unloader valve. The pilot/unloader valve is the "brains" of the air compressor and senses the tank pressure to load and unload the unit.Specifications Cut-In/Cut-Out PSI: 105/135 PSI 1/4"...Price: $47.41