{"product_id":"century-pool-pump-motor-1-5hp-1-phase-60hz-230-115v-p56j-b129","title":"Century Pool Pump Motor 1.5HP 1 Phase 60Hz 230\/115V P56J  B129","description":"\n\u003ch2\u003eCentury B129 1.5 HP Pool Pump Motor – 56J Frame, 115\/230V, Single Speed\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eCentury B129 1.5 HP Pool Pump Motor\u003c\/strong\u003e is a professional-grade replacement motor designed for compatible inground swimming pool and spa pumps. Featuring a 56J frame, threaded stainless steel shaft, and dual-voltage 115\/230V operation, this single-speed motor provides dependable performance for residential pool circulation systems.\u003c\/p\u003e\n\n\u003cp\u003eManufactured by Century, formerly A.O. Smith, the B129 features a 1.30 service factor, providing 1.95 total horsepower. Its permanent split capacitor (PSC) design delivers reliable motor operation without a mechanical starting switch.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for continuous-duty pool pump applications, the Century B129 is an excellent replacement for compatible Hayward, Jandy, Marlow, and other pool pump assemblies requiring a 56J threaded-shaft motor.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.5 HP Full-Rated Motor:\u003c\/strong\u003e Delivers 1.95 total horsepower with a 1.30 service factor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Voltage:\u003c\/strong\u003e Operates on either 115V or 230V electrical systems when properly configured.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3450 RPM Single Speed:\u003c\/strong\u003e Provides consistent rotational speed for compatible pool pump applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e56J Frame:\u003c\/strong\u003e Standard round-flange motor configuration with threaded shaft.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless Steel Shaft:\u003c\/strong\u003e Durable shaft construction designed for pool pump applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermanent Split Capacitor:\u003c\/strong\u003e Switchless PSC motor design for dependable operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic Thermal Protection:\u003c\/strong\u003e Built-in overload protection helps protect against excessive motor temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpen Dripproof Enclosure:\u003c\/strong\u003e Designed for properly protected and ventilated equipment installations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous-Duty Design:\u003c\/strong\u003e Built for regular swimming pool circulation applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Century \/ Regal Rexnord\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e B129\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Horsepower:\u003c\/strong\u003e 1.5 HP Full-Rated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eService Factor:\u003c\/strong\u003e 1.30\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Horsepower:\u003c\/strong\u003e 1.95 THP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 115\/230V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmperage:\u003c\/strong\u003e 18.4A at 115V \/ 9.2A at 230V (Service Factor Amps)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Speed:\u003c\/strong\u003e 3450 RPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Speeds:\u003c\/strong\u003e Single Speed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrequency:\u003c\/strong\u003e 60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhase:\u003c\/strong\u003e Single Phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e 56J \/ P56J\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting:\u003c\/strong\u003e Round C-Face\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Type:\u003c\/strong\u003e Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Diameter:\u003c\/strong\u003e 5\/8 Inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft Thread:\u003c\/strong\u003e 7\/16-20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRotation:\u003c\/strong\u003e Counterclockwise Viewed From Pump End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Design:\u003c\/strong\u003e Permanent Split Capacitor (PSC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure:\u003c\/strong\u003e Open Dripproof (ODP)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Protection:\u003c\/strong\u003e Automatic Overload\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsulation Class:\u003c\/strong\u003e B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuty:\u003c\/strong\u003e Continuous\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApproximate Overall Length:\u003c\/strong\u003e 13.5 Inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor Body Diameter:\u003c\/strong\u003e 6.5 Inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 786674011909\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 Replacement Motor\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Compatible Pump Applications\u003c\/h3\u003e\n\u003cp\u003eThe Century B129 is used with select pool pump models requiring a 1.5 HP full-rated, 56J threaded-shaft motor.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eHayward Super Pump SP1600 Series\u003c\/li\u003e\n\u003cli\u003eHayward Super Pump SP1600X Series\u003c\/li\u003e\n\u003cli\u003eHayward Super Pump SP2600 Series\u003c\/li\u003e\n\u003cli\u003eHayward Super Pump SP2600X Series\u003c\/li\u003e\n\u003cli\u003eSelect Jandy Pool Pumps\u003c\/li\u003e\n\u003cli\u003eSelect Marlow Pool Pumps\u003c\/li\u003e\n\u003cli\u003eOther compatible 56J threaded-shaft pool pump assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e Not every pump within these series uses the same horsepower or motor configuration. Confirm the original motor nameplate, total horsepower, frame, flange, and shaft requirements before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eMotor Cross-Reference Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCentury B129\u003c\/li\u003e\n\u003cli\u003eA.O. Smith B129\u003c\/li\u003e\n\u003cli\u003eCentury 8-164304-24\u003c\/li\u003e\n\u003cli\u003eCentury 164304\u003c\/li\u003e\n\u003cli\u003eCentury ST1152 – Verify specifications before substitution\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen to Replace Your Pool Pump Motor\u003c\/h3\u003e\n\u003cp\u003eA failing pool pump motor may exhibit several symptoms that indicate repair or replacement is necessary.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eMotor humming without starting\u003c\/li\u003e\n\u003cli\u003eFrequent thermal overload shutdowns\u003c\/li\u003e\n\u003cli\u003eExcessive motor bearing noise\u003c\/li\u003e\n\u003cli\u003eMotor overheating during normal operation\u003c\/li\u003e\n\u003cli\u003eCorrosion or water damage near the motor shaft\u003c\/li\u003e\n\u003cli\u003eMotor failing to operate despite proper electrical supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThese symptoms may also result from capacitor failure, damaged bearings, incorrect wiring, or problems within the pump wet end. Proper diagnosis is recommended before replacing the motor.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation and Replacement Information\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eTurn off the electrical circuit and verify that power is disconnected.\u003c\/li\u003e\n\u003cli\u003eConfirm the replacement motor matches the original motor's electrical and mechanical specifications.\u003c\/li\u003e\n\u003cli\u003eDrain the pump and separate the motor from the pump housing following the pump manufacturer's instructions.\u003c\/li\u003e\n\u003cli\u003eRemove the existing impeller and mechanical shaft seal as required.\u003c\/li\u003e\n\u003cli\u003eInstall a new compatible mechanical shaft seal when replacing the motor.\u003c\/li\u003e\n\u003cli\u003eTransfer the compatible pump components to the replacement motor.\u003c\/li\u003e\n\u003cli\u003eConfirm that the motor voltage configuration matches the available electrical supply.\u003c\/li\u003e\n\u003cli\u003eComplete electrical connections and grounding according to the manufacturer's instructions and applicable electrical codes.\u003c\/li\u003e\n\u003cli\u003eReassemble and prime the pump before starting.\u003c\/li\u003e\n\u003cli\u003eVerify correct rotation, motor operation, water circulation, and absence of leaks.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eRelated Pool Pump Replacement Parts\u003c\/h3\u003e\n\u003cp\u003eWhen replacing a Century B129 motor, inspect the mechanical shaft seal and pump housing gaskets. Aqua Pool Supply offers the following related replacement parts for compatible Hayward Super Pump applications.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/aquapoolsupply.com\/products\/haywardsealassemblyspx1600z2hppspx1600z2\" title=\"Hayward SPX1600Z2 Mechanical Shaft Seal Assembly\"\u003eHayward SPX1600Z2 – Mechanical Pump Shaft Seal Assembly\u003c\/a\u003e\n– Genuine Hayward replacement shaft seal for compatible Super Pump wet ends. Recommended when installing a replacement motor.\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/aquapoolsupply.com\/products\/aladdingokit3forhaywardsuperpump16002600seriesaeqgokit3aeqgokit3\" title=\"Aladdin GO-KIT3 Hayward Super Pump Seal and Gasket Repair Kit\"\u003eAladdin GO-KIT3 – Hayward Super Pump Seal \u0026amp; Gasket Repair Kit\u003c\/a\u003e\n– Repair kit for compatible Hayward Super Pump 1600 and 2600 series applications.\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/aquapoolsupply.com\/products\/jard-25-mfd-370v-capacitor\" title=\"Jard 12715 25 MFD 370V Round Motor Run Capacitor\"\u003eJard 12715 – 25 MFD 370V Round Motor Run Capacitor\u003c\/a\u003e\n– Related replacement run capacitor option. Verify the existing motor capacitor's rating and dimensions before ordering.\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdditional Pool Pump Replacement Parts\u003c\/h3\u003e\n\u003cp\u003eBrowse our \u003ca href=\"https:\/\/aquapoolsupply.com\/collections\/pool-pump-parts\" title=\"Shop Pool Pump Replacement Parts at Aqua Pool Supply\"\u003epool pump replacement parts\u003c\/a\u003e for additional impellers, diffusers, shaft seals, gaskets, and repair components.\u003c\/p\u003e\n\n\u003ch3\u003eMotor Replacement Considerations\u003c\/h3\u003e\n\u003cp\u003eAlways compare the original motor's total horsepower (HP multiplied by service factor), mounting configuration, shaft style, and electrical specifications before selecting a replacement motor.\u003c\/p\u003e\n\n\u003cp\u003eMany applications requiring replacement of a single-speed pool pump motor may be subject to federal, state, or local energy efficiency requirements. Verify that the replacement motor is permitted for the intended installation before purchasing.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePackage Includes:\u003c\/strong\u003e One (1) Century B129 1.5 HP, 115\/230V, Single-Speed Pool Pump Motor.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Pump housing, impeller, diffuser, mechanical shaft seal, and wet-end components are not included. These components are sold separately unless otherwise specified.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eInstallation Safety:\u003c\/strong\u003e Pool pump motor installation involves electrical hazards. Installation should be performed by a qualified professional following applicable electrical codes and manufacturer instructions.\u003c\/p\u003e\n","brand":"Century","offers":[{"title":"Default Title","offer_id":50052980965692,"sku":"B129","price":419.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/B129.avif?v=1792685606","url":"https:\/\/aquapoolsupply.com\/products\/century-pool-pump-motor-1-5hp-1-phase-60hz-230-115v-p56j-b129","provider":"Aqua Pool Supply","version":"1.0","type":"link"}