The MCGRAW™ 155 PSI V-Style Single Stage Cast Iron Pump is a direct replacement pump for most 240V, 3 HP DEWALT, PORTER-CABLE, SANBORN, POWERMATE, MAGNA FORCE and INDUSTRIAL air compressors. Fits compressors with a 8-3/8 in. L x 4-5/8 in. W bolt pattern. The pump includes compression fittings to accommodate 3/8 in. or 1/2 in. outlet tubes, plus an extra compression fitting and gaskets for future maintenance. Designed for use with a 3.6 in. to 3.85 in. motor pulley.