{"product_id":"carrier-ha1bjx048000abaa-capacitor-ykzw07","title":"OEM Carrier Dual Run Capacitor 50+5 MFD 370V — HA1BJX048000ABAA","description":"\u003ch1\u003eOEM Carrier Dual Run Capacitor for Model HA1BJX048000ABAA — Part P291-5054RS\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM dual run capacitor for the \u003cstrong\u003eCarrier HA1BJX048000ABAA\u003c\/strong\u003e 4-ton split-system air conditioner. The dual run capacitor serves a critical function: it stores and delivers the precise electrical charge needed to start and continuously run both the compressor and condenser fan motor on a shared component. When this capacitor degrades or fails, you may notice a humming condenser unit that won't start, a fan spinning sluggishly or not at all, compressor short-cycling, or a complete system shutdown on a hot day. Replacing it promptly with the correct OEM part protects the compressor — the most expensive component in the system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part Number P291-5054RS | Dual run design (compressor + fan) | 370V rated | Round case | Factory-matched ±3% MFD tolerance for precision motor protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM capacitor built to exact factory tolerances. Aftermarket capacitors frequently run ±10% MFD variance, which accelerates compressor wear, shortens motor life, and can void equipment warranties. For a 4-ton system, OEM is always the right call.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always discharge the capacitor terminals before handling (use an insulated resistor or discharge tool). Tools needed: 1\/4\" nut driver, needle-nose pliers, multimeter with capacitance mode. Photograph all wiring connections before disconnecting. Total job time typically 20–30 minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e Backed by a 1-year OEM factory warranty. In stock and ships same business day from our warehouse — get your system back online fast.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed and verified for the \u003cstrong\u003eCarrier HA1BJX048000ABAA\u003c\/strong\u003e 4-ton split-system condenser. Always confirm the MFD rating and voltage printed on your existing capacitor's label or the unit data plate before ordering. Our parts specialists are available to verify fitment — reach out before you buy if you have any questions. Order today and your part ships today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909359948147,"sku":"CARRIE-HA1BJX048000ABAA-CAPACITOR-P291-5054RS","price":33.6,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909359980915,"sku":"CARRIE-HA1BJX048000ABAA-CAPACITOR-P291-5054RS-GEN","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-round-dual-P291-5054RS_6228fb5b-91fd-4cc8-bcb4-52694c5c5e0c.jpg?v=1782915767","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ha1bjx048000abaa-capacitor-ykzw07","provider":"National HVAC Parts","version":"1.0","type":"link"}