Century 1/2 HP Square Flange 48Y Full Rate Motor - SQ1052



Part # SQ1052

By Century Motors

  4.88 Average  



Part # SQ1052

Warranty 1 Year

Dimensions 11.5" L x 6.5" W x 6.5" D

Alternate Part #'s 14796, 165904, 168451, 182824, 186639, 19700, 1K051, 2K404, 5KC38NN2520X, 6K946, 7-168451-24, 8-168451-20, 8-168451-24, 89700, 93620, A100CH, A100CHL, A100CL2, B361, B524, B846, B880, C1169, C1304, C48A44A71, C48A96B67, C48J2DE11, C48J2E11, C48J2E11A1, C48J2E11A3, C48J2E12, C48J2E12A1, C48J2E12A2, C48J2EA11, C48J2EA11A1, C48J2EA11A2, C48J2EA11A3, C48J2EA12, C48J2EA12A1, C48J2EA12A2, C48J2EAA, C48J2EB100, C48J2EB11, C48J2EB11A3, C48J2EB12, C48J2EB12A1, C48J2EB12A2, C48J2EC101A2, C48J2EC102, C48J2EC1024A2, C48J2EC102A2, C48J2EC104, C48J2EC11, C48J2EC11A1, C48J2EC11A3, C48J2EC11A4, C48J2EC11B1, C48J2EC11C1, C48J2EC12, C48J2EC12A1, C48J2EC12A2, C48J2EC15, C48J2ED11, C48J2EM101, C48J2EM102, C48J2P100, C48J2P102, C48J2PA100, C48J2PA104A2, C48J2PA105, C48J2PA105A2, C48J2PA105A6, C48J2PA105C1, C48J2PA105C4, C48J2PM100, C48J2PU100, C56H2B22, C56H2B36, C56J2B17, C56J2B18, C56J2B28, EB846, M56620, MTR262, S48B52B76, S48H2EC15B1, S88-880, SQ1052, SQD50FL1, V14796, AOS-60-5057

Product Description

Voltage 115/230, Max Amps 115 Volts = 11.8 Max Amps 230 Volts = 5.9 , Single Speed, Square Flange, RPM = 3450, Threaded Shaft, Frame = 48Y Used on the following models: Sta-Rite Max-E-Glas, Max-E-Glas II, Dura-Glas, Dura-Glas II, Dyna-Glas, Dyna-Max Pentair Whisperflow, Pinnacle and Anthony AR2 Series.


Motor Dimensions Motor Dimensions
Motor Image Motor Image

Product Specifications

Motor Name:
0.5 HP SQ1052 Replacement Pool Motor
0.5 HP
3450 RPM
115/230 V
13.4/6.7 amp
Service Factor:
Total HP:
0.95 HP
Stock #:
Overload Protector:
Dimension Letter:
12 - 1/8 ft.
Commonly Used On:
Sta-Rite Max-E-Glas, Max-E-Glas II, Dura-Glas, Dura-Glas II, Dyna-Glas, Dyna-Max Pentair Whisperflow, Pinnacle and Anthony AR2 Series

?     Asked on 8/13/2021by Peter Wong

Looking to replace a PacFab 35-5371 with a Century Q1052. What do I need to upgrade to the two speed Century? Also will the 1/2 hp but up to snuff as the old one is 3/4 HP. Thanks


A  Answered on 8/13/2021 by InyoPools Product Specialist Craig C.

Hello Peter.  The Century Motors model Q1052 is a square flange, THP 0.95, 48Y frame single-speed motor.   The Centurion Motor model 8-168451-24 is a square flange, THP 0.94, 56Y frame single-speed motor.  The more appropriate single-speed replacement motor is the Century Motors model B2846, square flange, THP 0.975, 56Y frame single-speed motor.  Century 1/2 HP Square Flange 56Y Full Rate Motor - B2846 - B846  The Dual Speed option is the Century Motors model B2981, square flange, THP 1.25, 56Y frame dual speed motor.  Century 3/4 HP Square Flange 56Y Dual Speed Full Rate Motor - B2981   The Dual Speed motor would require the installation of a dual speed timer.  Pool Timer Dual Speed Pump Timer - T106R

?     Asked on 2/22/2020by Karen Baum

what is the difference between a sq 1052 and a usq 1052 and a esq 1052 motor

A  Answered on 2/24/2020 by InyoPools Product Specialist Lennox H.

Hi, Karen. The total hp is the difference between the SQ1052 and USQ1052. Check out our How To Understand True Pump Horsepower - Up Rated vs Full Rated guide. Also, the ESQ1052 motor is similar to the SQ1052 motor which is manufactured by Nidec. 

?     Asked on 6/29/2019by Inyo Visitor

Is a Starite A100CL motor the same as a A100CL2? What's the difference between a Type C and Type B ?

A  Answered on 6/29/2019 by InyoPools Product Specialist Lennox H.

Hi. They're different versions of the A100CL motor, the last number or letter will determine the specific replacement. This SQ1052 could be used as a replacement, however, I can't confirm.  The motor type is a code for the electrical design of the motor. So the difference could be that one could be the type of wire, terminal board, capacitor etc. I'm not exactly sure. You can check our How to Read a Pool Motor Label guides and Blogs to confirm. 

?     Asked on 11/22/2017by Peter

I have to replace my C48J2EC11B1 motor on my Pureaqua reverse osmosis pump, Is the SQ1052 the proper replacement?

A  Answered on 11/22/2017 by InyoPools Product Specialist Hector F.

Yes, this is a replacement motor for your model. 

?     Asked on 8/1/2017by Jeff Davis

My Waterfall pump is a AO Smith Model # C48J2PA105C1 which is a 3/4 hp pump. The Inyo crosses it up to a Century C48J2PA105C4 which is a 1/2 hp pump. Is this correct?

A  Answered on 8/2/2017 by InyoPools Product Specialist Lennox H.

Hi, Jeff. You can use either the Century SQ1052 or USQ1072 motor as a replacement for MOD # C48J2PA105C4. 

?     Asked on 12/26/2016by Inyo Visitor

My motor is a Centurian AOS 7-168451-24 and this motor list it as a replacement for it. The nameplate list on my is a P56Y frame and yours states it is a 48 frame. Which is correct?

A  Answered on 12/27/2016 by InyoPools Product Specialist Andy O.

Hello- The SQ1052 A.O. Smith 1/2 H.P Square Flange Full Rate Motor is 48Y which is interchangeable with the 56Y models. The only difference is the barrel of the motor is 1" in diameter smaller so you may need to raise it on your motor stand.

?     Asked on 7/10/2016by Louie Adame

Does this motor replace the Sta-Rite Max E-Glas K48J2PA105C1?

A  Answered on 7/14/2016 by InyoPools Product Specialist Lennox H.

Hi Louie, This SQ1052 or the UQC1072 can be used as replacements for the K48J2PA105C1 motor. The shaft seal and o-rings will also need to be replaced which can be found on the Sta-Rite Dura-Glas and Max-E-Glas Parts page.

?     Asked on 2/6/2016by Inyo Visitor

Will this motor replace my existing Hayward Tristar motor (1/2 hp, sf 1.99, part # 7-196341-20)?

A  Answered on 2/8/2016 by InyoPools Product Specialist Lennox H.

Hi, This A.O. Smith 1/2 H.P Square Flange Full Rate Motor (SQ1052) will work on a Hayward TriStar pump that has the specs provided.

?     Asked on 3/21/2015by roger

Will this motor replace a Sta-rite Max-E-Glas PEXC-180L motor on a solar pump for pool? Motor model number K48J2PA10501 1/2HP.

A  Answered on 3/23/2015 by InyoPools Product Specialist Robert M.

Roger - The SQ1052 could be used as the replacement for your motor. We also offer the energy efficient version, QC1052.

?     Asked on 1/19/2012by Guest

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?

A  Answered on 1/19/2012 by InyoPools Product Specialist Patrick P.

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.

?     Asked on 1/12/2012by Guest

Why should I purchase a Tune Up Kit?

A  Answered on 1/12/2012 by InyoPools Product Specialist Patrick P.

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.

?     Asked on 1/12/2012by Guest

Why do I need to purchase a new shaft seal?

A  Answered on 1/12/2012 by InyoPools Product Specialist Patrick P.

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.

?     Asked on 1/11/2012by Guest

What is Service Factor?

A  Answered on 1/11/2012 by InyoPools Product Specialist Patrick P.

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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