{"product_id":"carrier-py1rea072074acwa-capacitor-42kxl1","title":"OEM Carrier Single Run Capacitor 4\/10 MFD 370V — PY1REA072074ACWA","description":"\u003ch1\u003eOEM Carrier Single Run Capacitor 4 MFD \/ 10 MFD 370V for Model PY1REA072074ACWA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier (Totaline) single run capacitor is the factory-specified replacement for the \u003cstrong\u003eCarrier PY1REA072074ACWA\u003c\/strong\u003e system, covering both the \u003cstrong\u003eP291-0403 (4 MFD)\u003c\/strong\u003e and \u003cstrong\u003eP291-1003 (10 MFD)\u003c\/strong\u003e variants. A run capacitor stores and releases the precise electrical charge needed to keep a single-phase motor spinning at full efficiency. When it degrades, you'll notice symptoms such as a humming motor that fails to start, intermittent short-cycling, unusually high energy consumption, or a motor that runs hot and trips on thermal overload. Note: P291-0403 is superseded by P291-0404, and P291-1003 is superseded by P291-1004 — all variants are covered under this listing.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e P291-0403 — 4 MFD ±5% | 370V AC | Oval case | 50\/60 Hz | P291-1003 — 10 MFD ±5% | 370V AC | Oval case | 50\/60 Hz | Both rated -40°C to +70°C operating temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e These Totaline\/Carrier OEM capacitors are factory-tested to 60,000 service hours and subjected to 100% electrical testing including capacitance and high-potential withstand checks. Generic alternatives often skip full electrical screening and carry looser ±10% MFD tolerances, accelerating motor wear over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always discharge the capacitor fully before handling any terminals. Tools needed: 1\/4\" nut driver, needle-nose pliers, multimeter (capacitance mode). Photograph all wiring connections before disconnecting. Match MFD and voltage ratings exactly to your unit's data plate — do not substitute a different MFD value.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for \u003cstrong\u003eCarrier model PY1REA072074ACWA\u003c\/strong\u003e. Always verify the MFD rating and voltage on your unit's data plate before ordering — the 4 MFD (P291-0403\/P291-0404) and 10 MFD (P291-1003\/P291-1004) serve different motor circuits. Questions about fitment? Our HVAC parts team confirms compatibility before you buy — order with confidence and get it shipped today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640699998579,"sku":"CARRIE-PY1REA072074ACWA-CAPACITOR-P291-0403","price":18.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640700031347,"sku":"CARRIE-PY1REA072074ACWA-CAPACITOR-P291-0403-GEN","price":16.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-0403_a2c783f0-e19a-4bd2-9c51-378780b79690.jpg?v=1775039269","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1rea072074acwa-capacitor-42kxl1","provider":"National HVAC Parts","version":"1.0","type":"link"}