Century® Replacement Pump Motors For Hayward Northstar Pool Pumps. Energy Efficient Full Rated Motors Low Noise 50° Ambient Class B Insulation E-Coated Main Frame for Superior Corrosion Resistance. Motor face has 4 threaded bolt holes (3/8") to attach pump to motor The holes measure 5 7/8" on center, measured diagonally across shaft Shaft is 5/8 diameter with threads on end.These motors are common to inground swimming pool pump applications The impeller is threaded onto the shaft (standard threads). All motors listed are 60HZ single phase. Service Factor= (SF) Aluminum NEMA C brackets. Motor does not have switches or power cord. Replacement Motor Only - No Pump. 3 hp 3450 RPM Single Speed 19.0 amps; 208-230 Volts 60hz. Service Factor = 1.60. The item "3 HP 3450 RPM 56J 208-230V Northstar Swimming Pool Pump Motor Century # SN1302" is in sale since Sunday, April 14, 2013. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Pool Equipment & Parts\Pool Pumps". The seller is "electric-motor-warehouse1" and is located in Burton, Michigan. This item can be shipped to United States, Canada.