{"product_id":"carrier-py2pnb024040ac-capacitor-42ll36","title":"OEM Carrier Dual Run Capacitor 35+5 MFD 370V for PY2PNB024040AC","description":"\u003ch1\u003eOEM Carrier Dual Run Capacitor 35+5 MFD 370V for Model PY2PNB024040AC\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM dual run capacitor for the \u003cstrong\u003eCarrier PY2PNB024040AC\u003c\/strong\u003e split-system air conditioner, covering primary part number \u003cstrong\u003eP291-3553\u003c\/strong\u003e and related single run capacitors P291-0403 and P291-1503. The dual run capacitor simultaneously serves the compressor and the condenser fan motor — storing and discharging the electrical energy needed to start and sustain both components through every cooling cycle. When this capacitor weakens or fails, you may hear a humming sound with no motor movement, experience a hard-starting or short-cycling compressor, notice the outdoor fan spinning slowly or not at all, or find the system tripping on thermal overload. Early replacement prevents far more costly compressor damage.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 35+5 MFD (microfarad) | 370V rated | Oval\/round case | OEM ±5% factory tolerance | 50\/60 Hz | Part numbers: P291-3553 (dual run), P291-0403 (single run), P291-1503 (single run)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine Carrier OEM capacitors are manufactured to exact factory tolerances. Aftermarket generic units frequently drift ±10% MFD or more, increasing start-current stress on the compressor and shortening motor life — the very failure you're trying to prevent.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Always discharge the capacitor before removing terminals (use an insulated resistor or discharge tool). Tools needed: 1\/4\" nut driver, needle-nose pliers, multimeter (capacitance function). Photograph all wire connections before disconnecting. Total job time: 15–30 minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock units ship same business day from our warehouse — order by 3 PM local time for same-day dispatch.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for \u003cstrong\u003eCarrier model PY2PNB024040AC\u003c\/strong\u003e. Always verify the MFD rating and voltage stamped on your existing capacitor's label before ordering — mismatched MFD values will cause premature failure. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy. \u003cstrong\u003eOrder now and get back to cool today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640554901875,"sku":"CARRIE-PY2PNB024040AC-CAPACITOR-P291-3553","price":31.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640554934643,"sku":"CARRIE-PY2PNB024040AC-CAPACITOR-P291-3553-GEN","price":27.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-3553_bc85bc93-d5d1-4eda-9a7c-b489b820d7d2.jpg?v=1775028580","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py2pnb024040ac-capacitor-42ll36","provider":"National HVAC Parts","version":"1.0","type":"link"}