Browse a broad selection of air compressor pumps at Grainger to help find the one to fit your application. Single-stage pumps ranging from ½ to 10 HP feature balanced ductile crankshafts, splash oil lubrication and CCW rotation facing flywheel. Some models offer a visual gauge to help you monitor oil levels. Two-stage air compressor pumps offer splash lubricated and pressure lubricated models in a variety of power levels. Oil-less compressor pumps operate at lower speeds to run cooler. Find the air compressor pump you need at Grainger!