Overview Product Description CENTURY AIR COMPRESSOR 3 SPL HP REPLACEMENT MOTOR 3 HP SPL 3450 RPM, 15.0/7.5 amps, 115/230V 60hz. Open Drip Proof - Ball Bearings - Service Factor 1.0 Non-Reversible - CCW Rotation facing the shaft U56 Frame; NEMA 56 Frame - Flat Rigid base mount Shaft: 5/8" diameter x 1 7/8" Overall motor length 11.59" This replacement compressor motor is commonly used on the small "home/shop" air compressors. The motor is designed to be used with a belt driven compressor. Not to be used where the motor is part of the compressor head. 56 Frame motor has a standard 3" x 5" bolt mounting pattern. Horsepower is designated as SPL. Not to be used where the mount is a pivot type mount. Motor connection diagram on motor name plate. Capacitor Start/Capacitor Run. Century Part No. 7-177838-20, 177838Dayton 48Y359 Product Videos Custom Field Product Reviews