{"product_id":"carrier-hb1bjx042000aaaa-capacitor-uq16bq","title":"OEM Carrier Dual Run Capacitor P291-3574RS for HB1BJX042000AAAA","description":"\u003ch1\u003eOEM Carrier Dual Run Capacitor P291-3574RS for Model HB1BJX042000AAAA\u003c\/h1\u003e\u003cp\u003eThis OEM dual run capacitor (part number \u003cstrong\u003eP291-3574RS\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier HB1BJX042000AAAA\u003c\/strong\u003e split-system air conditioner. The dual run capacitor stores and releases the precise electrical charge needed to start and continuously run both the compressor and condenser fan motor. When this component begins to fail, common symptoms include an audible hum with no motor movement, a compressor that kicks on briefly then shuts off, warm air from vents despite the system appearing to run, or a condenser fan that spins only when manually assisted. Left unaddressed, a failing capacitor places significant strain on the compressor — one of the most expensive components in the system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM part number P291-3574RS | Dual run configuration (compressor + fan) | Factory-matched MFD rating and voltage (370V\/440V) | Round case design | ±5% tolerance per OEM specification\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM capacitor, manufactured to exact factory tolerances. Aftermarket alternatives frequently deviate by ±10% or more in MFD rating, accelerating wear on the compressor and fan motor and potentially voiding equipment warranties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always discharge the capacitor fully before removing any terminals — capacitors hold lethal voltage even after power is disconnected. Recommended tools: 1\/4\" nut driver, insulated needle-nose pliers, and a multimeter with capacitance testing. Photograph all wiring connections before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Backed by a 1-year OEM factory warranty. In-stock units ship same business day from our HVAC-dedicated warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed and tested for the Carrier \u003cstrong\u003eHB1BJX042000AAAA\u003c\/strong\u003e condensing unit. Always verify the MFD rating and voltage on your existing capacitor's label or the unit's data plate before ordering to ensure an exact match. Our parts specialists are available to confirm fitment before you buy — no guesswork required. Order today for same-day shipping and get your system back up and running fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909348151667,"sku":"CARRIE-HB1BJX042000AAAA-CAPACITOR-P291-3574RS","price":25.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909348184435,"sku":"CARRIE-HB1BJX042000AAAA-CAPACITOR-P291-3574RS-GEN","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-round-dual-P291-3574RS.jpg?v=1782916037","url":"https:\/\/nationalhvacparts.com\/products\/carrier-hb1bjx042000aaaa-capacitor-uq16bq","provider":"National HVAC Parts","version":"1.0","type":"link"}