{"product_id":"carrier-upflow150u4819x-capacitor-42kv1f","title":"OEM Carrier Single Run Capacitor P291-0753 for UPFLOW150U4819X","description":"\u003ch1\u003eOEM Carrier Single Run Capacitor P291-0753 for Model UPFLOW150U4819X\u003c\/h1\u003e\u003cp\u003eThis OEM single run capacitor (part number \u003cstrong\u003eP291-0753\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier UPFLOW150U4819X\u003c\/strong\u003e upflow air handler system. The run capacitor maintains a continuous phase-shifted current to keep the blower motor running at peak efficiency after startup. When this capacitor degrades or fails, you'll notice symptoms such as a humming motor that won't spin up, intermittent blower operation, warm air from supply registers, or a system that trips on thermal overload and shuts down shortly after starting.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Single run capacitor | Factory-matched MFD rating | 370V\/440V rated | Cylindrical case | ±5% OEM tolerance — verify your unit's data plate for exact MFD value before ordering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier part (P291-0753), manufactured to exact factory specifications. Generic alternatives often carry a looser ±10% MFD tolerance, which accelerates motor winding wear and can shorten blower motor life significantly over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the breaker and discharge the capacitor terminals before handling. Tools needed: 1\/4\" nut driver, insulated needle-nose pliers, multimeter (capacitance mode). Photograph all wiring connections before disconnecting the old unit.\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 for the Carrier \u003cstrong\u003eUPFLOW150U4819X\u003c\/strong\u003e upflow air handler. Always cross-reference the MFD rating and voltage stamped on your existing capacitor or the unit's data plate to confirm fitment. Our parts specialists are available to verify compatibility before you order — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640227484019,"sku":"CARRIE-UPFLOW150U4819X-CAPACITOR-P291-0753","price":52.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640227516787,"sku":"CARRIE-UPFLOW150U4819X-CAPACITOR-P291-0753-GEN","price":46.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-0753_14c59ad7-fc15-49dc-a851-728eafa1e1af.jpg?v=1775039713","url":"https:\/\/nationalhvacparts.com\/products\/carrier-upflow150u4819x-capacitor-42kv1f","provider":"National HVAC Parts","version":"1.0","type":"link"}