Up for sale is (1) Champion Air Pump is untested But spins freely and sounds like has compression. Please refer to pictures to determine condition. Please email with any Questions!  

CHAMPION R15BHU (3Z181), M1820
3–5–7.5 HP TWO STAGE
SPLASH LUBRICATED COMPRESSOR
WITH HEAD UNLOADERS HGR5-3 , HGR6-3 , HGR7-3 , BGR 5 , BGR 6 , BGR 7, VR58, VR5-8, VR78, VR7-8, HR5-8, HR5-6, HR7-8
Designed for heavy-duty industrial applications. Die-cast aluminum cylinders with cast-iron sleeves for greater efficiency, cooling, and service life. Pumps are splash lubricated. Balanced, fan-type flywheels provide air flow for cooling pump. Rotation CCW facing flywheel. Intercoolers efficiently dissipate heat. Include unloader and pilot valve for constant speed operation. Centrifugal unloader provides efficient pressure release for loadless starting. This pump is for gas powered compressors or compressors with dual control option for continuous run capability.