What is Service Factor?
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Service Factor(SF) is a multiplier that when multiplied by the horsepower of the motor indicates the total permissible horsepower loading that may be carried when the motor is operating at rated voltage and frequency. The most important thing to remember when replacing a motor is that the replacement motor's horsepower times its service factor must be equal to or greater than the original motor's horsepower times its service factor. The Service Factor rating can be found on the motor label. See Step 4 of our How to Read a Pool Motor Label guide.
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Is this a drop-in replacement for a 56J, SF 1.20 2HP single speed motor?
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Hi Joe, The 2 Hp 2 Speed Up Rated Motor (5112-064) has a 56Y Frame motor and is a 2 speed motor. The 2 HP 56J Full Rate Threaded Round Flange Motor (B130) would be a drop-in replacement.
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My pump is the northstar and actual motor number is
SP 1620-Z-2-BC.
Is this the correct replacement motor even though it indicates 1615Z2MNS? What is the difference?
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Hi Jerry, This is the correct replacement for the SP1620-Z-2-BC.
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Hi i got this replacement motor from you guys and the wiring is different mines stated number 1 red wire number 2 purple wire and 3 or 4 black wire the motor you sent me has 1 red wire 2 white wire and 3 or 4 black wire do this wire up the same i dont have a owners man guide for this motor model number SP1620-Z-2-BC
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Hi Michael, The "Red" and "Black" wires are you hot, the "White" is your low speed and the "Green" is the ground.
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Are you able to list the replacement bearings needed for this motor? Thank you.
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Hi Cody, The parts list we have does not list the bearing size for this motor, you will have to contact Century at 866-887-5216.
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Will this motor replace the SPX1615X1MNS I currently have in my Hayward Northstar? The picture I attached is a replacement single speed that is currently installed. Also, if this motor will work is there a manual switch for the speed?
I've installed this, but looks like I have a lead at the impeller seal, as the old impeller has a ring worn into it where the shaft seal is supposed to seat. Can you tell me which replacement impeller I should get?
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Hi, Bob. You will need the Impeller Kit - SPX4020CKIT.
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So I've replaced the shaft seal and that's all perfect now, except the motor has gotten louder, so I'm thinking that the bearing on that side got destroyed from the leak. Where can I find a new set of bearings for this motor?
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Hello, Unfortunately, we do not carry bearing replacements for dual speed motors. We recommend contacting the manufacturer on finding the correct ones for your motor. You can contact them at 1-800-429-9273.
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Can you tell me the part number for the bearings in this motor? Maybe the dimensions? Hayward is pretty much no help on this as they want to send me to a local "pool professional".
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Hi Bob, we are showing there are two bearings in this motor, one being the 6203 Bearing and the other being the 6304 Bearing. We put together a few videos on how to replace bearings which you may find helpful when you tackle this project. Part 1 Video on How to Replace Pool Motor Bearings and Part 2 Video on How to Replace Pool Motor Bearings
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I HAVE A SINGLE SPEED CENTURY MOTOR CAT. # 130/ SERIAL # 19718CH TYPE CX FRAME X56J, 2 HP, 230 VOLTS, 3450 RPM ON A HAYWARD PUMP ASSEMBLY. I WOULD LIKE TO REPLACE IT WITH 2 SPEED MOTOR. WOULD THE HAYWARD 2 HP UP RATE DUAL SPEED NORTHSTAR REPLACEMENT MOTOR (SPX1615Z2MNS) PART NO. 5112-064 WOULD BE THE RIGHT CHOICE? NOTE: THE NAME PLATE ON THE PUMP HOUSING IS FADE OUT AND CAN NOT BE READ. MY OWNER PAMPHELT SHOWS IS4007-00B, WONDER IS THIS IS PUMP MFG. SERIES? PLEASE CONFIRM THE ACCURATCY THANKS.
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Hello Benny. The Hayward motor model SPX1615Z2MNS is the correct replacement for the Century motor CAT. #130 when changing from a single-speed motor to a two-speed motor. The part number you provided, IS4007-00B, indicates that this is a Hayward Northstar pump.
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