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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Why do I need to purchase a new shaft seal?
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We strongly recommend replacing the shaft seal. The purpose of a shaft seal is to prevent water from running down the shaft of the motor and into the motor housing. Water will damage the bearings and cause the motor to fail. A new shaft seal should be installed whenever a motor is replaced. The motor manufacturer can deny the warranty if the motor fails to due to water damage from a faulty shaft seal. To find your shaft seal you will need to visit our Pool Pump Parts Page or the Spa Pump Parts Page and select your make and model.
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Why should I purchase a Tune Up Kit?
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A Tune Up Kit includes all of the essential replacement seals and gaskets for the pump. The seals and gaskets should be replaced when installing a new motor on your pump. New seals will prevent the pump from leaking water or losing the prime. A Tune Up Kit will protect your motor and ensure that the pump is working efficiently.
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I'm trying to find a replacement motor for my pool pump but my model number doesn't match what you have listed as the model number. My model number begins with a C48 and yours begins with an SP. Please help.
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What we have listed on our chart pages is the pump model number. The model number you have will just identify the motor. If you look on the plastic housing on the pump there should be a sticker which will have the pump model number. You can usually find this by the discharge port on the pump. Once you locate it you can choose the correct replacement motor. Be certain to change the shaft seal and gaskets as needed. You can use our >How to guide if you need help.
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I'm trying to replace the motor on my pool pump but all these numbers and abbreviations on the motor label are really confusing me. What do they mean?
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Replacing a pool pump motor is not as difficult as it seems. You can try looking here. If you need help figuring out what the information on your label means. If you are still having difficulty figuring it out you can call us at our toll free number or you can send us a photo of your motor label here.
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Will the AO Smith UCT1102 cost less to run than the UST1102?
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Yes, the UCT1102 will cost less to operate compared to the standard UST1102. Depending on how the motor is cared for, it should last several years. When replacing the motor, I would recommend buying a tune up kit based on your pump model and age.
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I am looking to replace an ST1102 1HP motor on a Hayward Superflow pump. I think I would like to upgrade to variable speed for more energy effeciency. I see the STS1102 and UCT1102 and was wondering what the difference is? Also, it appears that I would need some additional parts, like a timer or special switch, is that correct? I also have to ensure that the replacement motor is the exact same length as the installer left me barely enough room to extract the motor. Thanks for your help!!!
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Hi Wayne, The STS1102 is a dual speed replacement motor and the UCT1102 would be an energy-efficient single speed motor, neither of these would be a variable speed motor. Here is the link to the Variable Speed Motor for the Hayward Super Pump, the variable speed replacement motor does have a controller so no additional timer would be needed. We have Detailed Dimensions of the Hayward Super Pump Variable Speed Replacement Motor here, I would take a look at these dimensions to determine if this motor will work for you. We would also highly recommend a Hayward Super Pump Tune Up Kit when replacing your motor.
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Is this motor now made by Century???
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Technically, yes. A.O. Smith and Century Motors merged into a larger manufacturing company called Regal Beloit. The sticker on the motor may say, A.O. Smith or Century.
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What other parts such as a new seal should also be installed when putting in a new pump
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This will be dependant on the condition of the other parts. You may need to replace some of the other seals and gaskets as well. Usually we recommend to purchase the entire seal kit just in case they are needed. The kit type would be dependant on the model of the front pump housing. It would also be wise to inspect the impeller as well for any damage or cracks.
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do you sell bearing repair kits. Model # K63CXEPY-4766. it is made by U.S. Motor
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Hi, We do not have the bearing info for the U.S. Motors, I would recommend contacting U.S. Motors at 888-637-7333 for assistance.
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The run capacitor hump housing on my UCT1102 is completely rusted out. Is there anyway of finding a replacement part?
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Hello, Please provide the specs and dimensions of your existing capacitor.
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I want to replace my dead motor Model # C48K2N143B1 with a more efficient one. I was wondering if I should get the UCT1102 or the UCT1152? Thank you, for your time and help in advance.
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Hi Angie, The energy efficient version of your C48K2N143B1 motor would be this UCT1102 motor and this would be the correct replacement for you.
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will this be an exact fit to replace a Hayward model number C48K2N143B1
1 HP KW .75
115/230 volts
SP1607Z1-M
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Hi Joey, Yes, the UCT1102 is the energy efficient replacement to the C48K2N143B1 motor.
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Replacing my C48L2n134c2, is this the correct replacement motor? Also, can you confirm the seal kit? Thanks
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Hello - the correct direct replacement motor is the A.O. Smith 1 HP Full Rate Round Flange Motor - ST1102. If you want the Energy Efficient alternative, you can use the A.O. Smith 1 HP Energy Efficient Round Flange Up Rate Motor - UCT1102. The seal kit is based on the make and model of the PUMP you have (not the motor). You will need to identify the pump information in order to determine the correct seal kit you need.
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The SF of this motor is 1.0 where the SF of UST 1102 is 1.10
I thought that the SF of the replacement motor must equal or exceed the previous motor...
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Nate you are correct however since the SF difference is so minimal we have not seen any issues using the UCT1102 as a replacement for the UST1102. The manufacture Century also promotes the UCT1102 as an energy efficient replacement to the UST1102 and you would have the full 1 year warranty if using this motor as a replacement to the UST1102.
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1) What other parts will I need to buy when replacing the motor - New impeller, seals?
2) Will this motor work as a replacement to:
SP-1605-Z1-M
Model: C48J2N122
SER C77
Volts 115/230
RPM 3450
Amps 10.6/5.3HP 3/4
FR 56J
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Will the Energy Efficient 1 HP UCT1102 motor be a direct replacement for my 1 HP A. O. Smith ST1102 (1081 Design) motor and does it come with a shaft seal or must I order that separately? I already have a 3-piece Hayward pump seal kit.
Thanks,
Dale
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Hi Dale, This UCT1102 is not a replacement for your ST1102 Motor. Please click this link for the UCT1152 Energy Efficient Replacement Motor that you will require. Your ST1102 motor is a 1 HP full rate motor which is equivalent in power to the UCT1152 motor which is a 1.5 Up Rated Motor. The motor does not come with a shaft seal. I'm not sure which Hayward Pump you have so I can't make a suggestion on a seal, the most popular Hayward Pump is the Hayward Super Pump, if you have a Hayward Super Pump then you will need this Hayward Super Pump Shaft Seal.
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I am want to replace a standard 1 hp AO Smith/Hayward motor C48K2N143B1 with a EE Version is UCT1102 the correct replacement? Is the GoKit3salt the correct seal with everything I need to perform the motor swap on a Hayward SP2607X10 ? Do you recommend anything else for require parts to perform the swap?Thanks
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Hi, Mark. The UCT1102 and GOKIT3SALT are the parts you will need to convert your pump to a more efficient pump and replace the seals.
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I purchased a new Motor CT1072 from you for my Hayward Superpump II. I need to connect my existing cord to the new motor. The existing motor is set at 230V. The heavy duty cord has three wires. Two green and one black. One green which is longer than the other I know is connected to the ground screw. Where do the other two wires go and which one is the hot wire (black or green). Also does this motor come pre-set at 230V and if not how do I change it from 110 to 230V.
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Hi, Ted. Once you've identified the Ground, the other two wires are your HOT (115 volt) leads. I would recommend that you use multi-meter to test the leads confirming the voltage.
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Recently replaced with this motor and used the starter kit but there is a leak, water is dripping from under part. What is the corresponding impeller and shaft seal for this motor?
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Hi. You will need to provide us with the make and model number or name of the pump housing in order to locate the shaft seal and impeller.
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Hi, Sorry to trouble you. Do you sell the 110/115 wire harness with 3 prong plug for this 1 Hp motor? Thanks in advance for your response.
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Hi Richard, We do carry this 115V 3 Prong Plug and Cord which will work this motor.
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Thanks for answering my question yesterday and I was pointed to the right pump for my filter, but I want to get an energy efficient version of my pump if possible. I have a Jacuzzi Magnum pump that has a lock ring that needs to go over the pump. Will this one work? It looks like I will need to temporarily remove the capacitor at the top to get the lock ring over, if possible even. I attached pictures of the pump and motor.
Hi, Tim. You can use this UCT1102 or the B638 as a replacement. You will also need to get the Magnum Tune Up Kit - GOKIT14.
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Thanks! I noticed some variable speed motors listed as compatible with these motors you listed, would any of those be compatible with my magnum pump with the lock ring as well?
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I have a Hayward Super Pump. Would this motor be an appropriate replacement for my existing? Thanx
Hi. Based on the picture of the motor label provide, the CT1102 (EE) or the ST1102 (STD) motor can be used as a replacement. You will also need the Super Pump Tune Up Kit - GOKIT3 or GOKIT3SALT.
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Just to verify, will this be a high efficiency replacement for the AO Smith C48K2N1431 motor, used on Heyward "Super Pump" model # SP2607X10? I would like to also get the shaft seal & impeller replacement.
Hi, Tom. This UCT1102 is an energy-efficient option to your existing motor. The Impeller - SPX2607C, and Tune Up Kit - GOKIT3 or GOKIT3SALT.
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looking to purchase this pump to replace UST 1102. I look on the pump housing and the only number I see is SD-1600-D I beleive (see photo). From this...
1. What other parts would I need to replace the motor?
2. If I wanted to replace the whole unit with a pump/EE motor what would you recommend?
Thanks!
Yes, this would be the correct motor. You should also order a new pump seal also OEM SPX1600Z2 or seal assembly kit SPX1600TRA.
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Looking to replace my UST1102 with UCT1102. I have looked on the pump housing and the number seems to be SP1600-D (see photo).
1. What other parts would I need to replace the motor?
2. What would I need if I want to replace the entire pump AND motor?
3. If I wanted to add timer to the motor, what would you suggest?
Thanks!
Bill
Hi, Jbcreger. You will need the Super Pump Tune Up Kit - GOKIT3 or GOKIT3SALT. You can use the Prime 1 HP Pump - PL2601 or the Hayward Super Pump 1 HP - SP2607X10. As for a timer, the voltage is required which can be selected from these Intermatic Timers.
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Can I replace my A O Smith #C48K2N143B1 motor with his higher efficiency motor? This is on aa Hayward Super Pump II.
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Hi. Yes, you can along with the Hayward Super II Pump Tune Up Kit - GOKIT2 or GOKIT2SALT.
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i need to replace pool pump and booster motor on a hayward super pump and booster pump motor for polaris (pb4-60) cleaner see photos
Hi. The replacement motor for the Polaris Booster Pump is B625 and for the Super Pump is UST1102, Hayward Super Pump Tune Up Kit - GOKIT3 or GOKIT3SALT.
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I have an old AO Smith 1HP single speed motor that needs replacement (Model ST1102). Is there a new more efficient single speed motor? Perhaps your Century UCT1102 up rated 1HP motor will be ideal?
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Hi Scott, You would actually require the CT1102 Replacement Motor
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I need to replace my Hayward Super Pump 1.0 hp motor. It looks like I can choose between this energy efficient model (UCT1102 ) or UST1102. Is that correct? Here is a picture of my pump motor.
Hi Jeff, yes that is correct that you can use either of these two motors to replace your motor model c48k2n143b1. It is also recommended to replace the seals and gaskets so for the Hayward Super Pump series that would be the GOKIT3 for a chlorine swimming pool and the GOKIT3SALT for a saltwater pool.
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I have to replace my pool pump motor it's a Jandy HH plus series !, will this motor work and what pump seal would i need.
Hi Abel, the correct single speed replacement motor for the motor included in your photo is the 5212X. You will also need the Jandy HH Plus seal kit when you replace your motor. We put together this Video on How to Replace a Pool Pump Motor which you may find helpful when you tackle this project.
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Will this replace my 1HP century motor UST 1102 C48K2N143CiC. I replaced the original 3/4 HP motor in my Hayward pump 4 years ago and it has now died. The work was done by a local pool supply company. They also installed a new impeller for the 1HP motor. Not sure what the original Hayward model was but installed when house was built in late 2001. Thanks Jim Herhold
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Hello, yes the UCT1102 can replace your motor model C48K2N143C1C. It is also recommended to replace the seals when replacing a motor. In order to locate those, we will just need the front pump wet end housing model name or number that the motor attaches to. You can also upload a few images in a reply to this if need.
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will this replace a UST 1102 C48K2N143
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Hello, yes this motor is a suitable replacement single-speed motor for your motor model C48K2N143. It is also recommended to replace the seals and gaskets as well when replacing the motor. In order to locate those seals, we will just need to know the front pump housing wet end model name or number that the motor attaches to confirm for you.
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I have a magnetek motor # 10-184948-22, what is the replacement? what else will I need as well?
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You will require this UCT1102 Replacement Motor. When replacing your motor you will need a seal kit. For us to suggest the proper seal kit could you send a photo of a wide shot of your complete pool pump to show the pipes going in and out of the pump? To supply this photo simply click the reply link below and upload your photo. Once we get this photo we can make the proper recommendation for the seal kit.
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what model do I replace my Century Pool Pump?
and what gaskets / seals do I need to order?
I'll be doing all repairs.
(photo of existing pool pump label attached)
The A.O. Smith CT1102 motor I have is screeching. I assume the bearings are going. Since I live in California with Title 20 energy saving requirements and a new CT1102 cannot be sold here, what are my alternatives? I have a Hayward Super II 3000 series filter attached to the motor.
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Hello Esko, the California Title 20 Compliant Options: would be Century 1.0 HP Round Flange 56J Dual Speed Full Rate Motor - STS1102RV1 or the V-Green 1.65 HP Round Flange 56J Variable Speed Motor - ECM16CU. For the seals and gaskets, you would also need the Tune Up Kit Hayward Super II - GOKIT2.
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Does this come in a square flange? If not, what is comparable to this by Century with a square flange? Looking for a 1hp energy efficient model. Thank you.
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The 1HP uprated square flange version of the UCT1102 would be part number UQC1102. Your current motor would need to say 48Y or 56Y on the motor label for the UQC1102 to fit.
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I have Century 1081 Pool Pump Duty 1hp 3450 rpm. Century Pool Pump Duty 1HP 3450 RPM, CENTURY customer pn SP-167-ZI-M and sn BC12. Will this motor fit? Thank you
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Hello Dave. The Century Motors 1.0 HP Up Rate EE Motor model UCT1102 is a compatible replacement for the SP1607Z1M. The model UCT1102 is a more energy-efficient model than the UST1102 which is also compatible as a replacement. Century 1.0 HP Round Flange 56J Up Rate Motor - UST1102
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I need a replacement motor and a kit for a jacuzzi magnum force pump. Here is a picture of the bad motor
Hello Joe. The Century Motors 1.5 HP Full Rate EE Motor model B129 is a compatible replacement for the Century Motors model 7-184949-22. Attached please find information specific to the Jacuzzi Magnum Force Tune-Up Kit which contains the parts recommended with a motor change. Tune Up Kit Carvin/Jacuzzi Magnum Series - GOKIT14 Jacuzzi Magnum
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Hi,
I have a Hayward pump, I think a Super II, and the motor just burned up. The model is a Marathon 5KC39PN2822BX 1hp. What replacement motor do I need? It looks like this UCT1102 might work if it fits. What pump seal kit do I need?
Hello Emory. The Century Motors 1.0 HP Up Rate Motor model UST1102 is a compatible replacement for the Marathon Motor model 5KC39PN2822BX. Century 1.0 HP Round Flange 56J Up Rate Motor - UST1102 The Century Motors 1.0 HP UP Rate Energy Efficient Motor model UCT1102 is also a compatible replacement. Century 1.0 HP Round Flange 56J Up Rate EE Motor - UCT1102 The Tune Up Kit, GOKIT2, contains the necessary seals and o-rings to complete this project. Tune Up Kit Hayward Super II - GOKIT2 Attached please find an exploded parts diagram for the Hayward Super II Series Pumps. Hayward Super II
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