{"product_id":"carrier-py2ppb042090aa-capacitor-42kxl1","title":"OEM Carrier Single Run Capacitor 4 MFD 370V for PY2PPB042090AA","description":"\u003ch1\u003eOEM Carrier Single Run Capacitor 4 MFD 370V for Model PY2PPB042090AA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier\/Totaline single run capacitor (part number \u003cstrong\u003eP291-0403\u003c\/strong\u003e) is the factory-specified replacement for \u003cstrong\u003eCarrier model PY2PPB042090AA\u003c\/strong\u003e packaged HVAC systems. The run capacitor provides the sustained phase-shifted electrical current that keeps the condenser fan motor or compressor running at peak efficiency. A failing capacitor typically presents as a motor that hums but won't start, a unit that short-cycles within minutes of startup, or a compressor that draws excessive amperage and trips the breaker. Left unaddressed, a weak capacitor rapidly accelerates motor winding wear and can cause compressor failure.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 4 MFD (microfarad) | 370V rated | Oval case | ±5% factory tolerance | Superseded by P291-0404 (440V upgrade — direct fit)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This Carrier Totaline OEM capacitor is \u003cstrong\u003ereliability-tested to 60,000 service hours\u003c\/strong\u003e, uses high-grade metallized polypropylene film, and is 100% electrically tested before shipment. Generic capacitors often run at wider ±10% MFD tolerances, which accelerates motor wear and shortens system life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always discharge the capacitor fully before handling. Tools needed: 1\/4\" nut driver, needle-nose pliers, insulated screwdriver, multimeter. Photograph all wiring connections before disconnecting. Capacitors store lethal charge even with power off.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e 1-year OEM factory warranty. UL Approved with patented pressure-sensitive interrupter. RoHS compliant. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits Carrier model \u003cstrong\u003ePY2PPB042090AA\u003c\/strong\u003e packaged HVAC systems requiring a 4 MFD 370V oval single run capacitor. Also cross-references OEM part numbers P291-0403, P291-1503 (15 MFD companion capacitor sold separately). Verify MFD rating and voltage on your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you purchase — order with confidence.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640512041331,"sku":"CARRIE-PY2PPB042090AA-CAPACITOR-P291-0403","price":18.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640512074099,"sku":"CARRIE-PY2PPB042090AA-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_0432239d-2a96-4f96-93eb-4bb649f5ae73.jpg?v=1775039202","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py2ppb042090aa-capacitor-42kxl1","provider":"National HVAC Parts","version":"1.0","type":"link"}