{"product_id":"carrier-py2peb042090ab-capacitor-42kxl1","title":"OEM Carrier Single Run Capacitor 4 MFD 370V for PY2PEB042090AB","description":"\u003ch1\u003eOEM Carrier Single Run Capacitor 4 MFD 370V for Model PY2PEB042090AB\u003c\/h1\u003e\u003cp\u003eThis is the factory-specified OEM single run capacitor for the \u003cstrong\u003eCarrier PY2PEB042090AB\u003c\/strong\u003e packaged gas\/electric unit. Run capacitors remain in the circuit continuously while the motor operates, supplying the phase-shifted current that keeps the condenser fan motor spinning efficiently. When this capacitor weakens or fails, you'll notice classic symptoms: a humming condenser fan that won't spin up, warm air from the supply registers, or the unit short-cycling and tripping on thermal overload. Replacing this small but critical component is one of the most common — and most cost-effective — HVAC service calls.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 4 MFD (microfarad) | 370 VAC | Oval case | Single run | 50\/60 Hz | Factory-matched ±5% tolerance — OEM part number \u003cstrong\u003eP291-0403\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM Carrier\/Totaline capacitor is manufactured to exact factory tolerances and tested to 60,000 service hours. Generic capacitors often carry ±10% MFD tolerance, accelerating motor wear and shortening equipment life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power at the breaker and allow the capacitor to discharge fully before touching terminals. Tools needed: 1\/4\" nut driver, insulated needle-nose pliers, multimeter. Always photograph existing wiring before disconnecting terminals to ensure correct reinstallation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer 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 Designed for the \u003cstrong\u003eCarrier PY2PEB042090AB\u003c\/strong\u003e packaged gas\/electric unit. This listing covers the condenser fan motor run capacitor (P291-0403, 4 MFD 370V). A companion single run capacitor P291-1503 (15 MFD 370V) is also available for the compressor circuit on this model — see our related listings. Always verify the MFD and voltage ratings on your existing capacitor's label before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy — reach out via chat or phone. \u003cstrong\u003eOrder today and we'll ship it out the same business day.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640570433907,"sku":"CARRIE-PY2PEB042090AB-CAPACITOR-P291-0403","price":19.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640570466675,"sku":"CARRIE-PY2PEB042090AB-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_411e5e7f-5cf8-4926-b5b0-57d3c3834cfd.jpg?v=1775039161","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py2peb042090ab-capacitor-42kxl1","provider":"National HVAC Parts","version":"1.0","type":"link"}