UST1102 Century 1 HP 3450 RPM 56J 115/230V Swimming Pool Motor has 4 threaded bolt holes on face for mounting the pump to the motor. Bolt holes are 5 7/8" on center measured across the shaft. Wiring diagram on motor name plate. 1 year warranty. AO Smith/Century Models: C48K2N143, C48K2N143A3, C48K2N143A4, C48K2N143A5, C48K2N143A6, C48K2N143A9, C48K2N143B1, C48K2N143B3, C48K2N143C1, Ask - What's Your Question? We would like to show you a description here but the site won’t allow us.Learn more