{"product_id":"carrier-py3pna048090aa-capacitor-42kxl1","title":"OEM Carrier Single Run Capacitor 15 MFD 370V for PY3PNA048090AA","description":"\u003ch1\u003eOEM Carrier Single Run Capacitor 15 MFD 370V for Model PY3PNA048090AA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier single run capacitor is the factory-specified replacement for the \u003cstrong\u003eCarrier PY3PNA048090AA\u003c\/strong\u003e packaged unit. Single run capacitors store and release the precise electrical charge required to start and sustain the compressor or condenser fan motor during each operating cycle. When a run capacitor fails, you'll typically notice a loud hum with no motor start, intermittent short-cycling, a tripped breaker, or the system shutting down within seconds of startup — all classic signs of capacitor degradation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 15 MFD (microfarad) | 370V rated | Oval case | Factory-matched ±5% tolerance | Replaces OEM part numbers P291-1503 and P291-0403 (successor parts P291-1504 \/ P291-0404)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier\/Totaline capacitors are \u003cstrong\u003ereliability-tested to 60,000 service hours\u003c\/strong\u003e and use high-grade metallized polypropylene film (5–12 microns thick). Generic capacitors often carry wider tolerance ranges that accelerate motor wear and reduce compressor lifespan.\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 the old capacitor. Note: Carrier sources its capacitors from OEM manufacturers — the label on the capacitor body will reflect the original manufacturer's name, not Carrier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before 3 PM ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for use in \u003cstrong\u003eCarrier model PY3PNA048090AA\u003c\/strong\u003e packaged units. Always verify the MFD and voltage rating on your unit's data plate before ordering. Both P291-0403 (4 MFD 370V) and P291-1503 (15 MFD 370V) are OEM single run capacitors used in this platform — confirm which capacitor your unit requires before purchasing. Questions about fitment? Our HVAC parts team verifies compatibility before every order ships.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640383361395,"sku":"CARRIE-PY3PNA048090AA-CAPACITOR-P291-0403","price":27.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640383394163,"sku":"CARRIE-PY3PNA048090AA-CAPACITOR-P291-0403-GEN","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-0403_b2a2e620-2ed6-4363-beef-5cf7201f7504.jpg?v=1775038891","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py3pna048090aa-capacitor-42kxl1","provider":"National HVAC Parts","version":"1.0","type":"link"}