{"product_id":"carrier-pg8maa066135acja-capacitor-42n3s0","title":"OEM Carrier Single Run Capacitor 10 MFD 370V for PG8MAA066135ACJA","description":"\u003ch1\u003eOEM Carrier Single Run Capacitor 10 MFD 370V for Model PG8MAA066135ACJA\u003c\/h1\u003e\u003cp\u003eThis OEM single run capacitor (part number P291-1003) is the factory-specified replacement for the \u003cstrong\u003eCarrier PG8MAA066135ACJA\u003c\/strong\u003e gas furnace. The run capacitor provides a continuous phase-shifted current to the blower motor's auxiliary winding, keeping it spinning efficiently throughout every heating and cooling cycle. When the capacitor weakens or fails, common symptoms include a furnace blower motor that hums but won't start, runs slower than normal, draws excess current, or trips a thermal overload — ultimately leading to reduced airflow, comfort complaints, and potential motor burnout if left unaddressed.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 10 MFD (microfarad) | 370V rated (370\/440V compatible) | Oval case | ±5% capacitance tolerance | 50\/60 Hz | 10,000 AFC protected | Non-PCB dielectric fluid | RoHS Compliant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Totaline-series capacitor manufactured to factory tolerance. Generic aftermarket capacitors often carry a ±10% MFD tolerance, which accelerates motor winding stress, shortens blower motor life, and may void your equipment warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Before touching any terminals, discharge the capacitor safely using a resistor or an insulated screwdriver. Tools needed: 1\/4\" nut driver, needle-nose pliers, and a multimeter with capacitance function. Always photograph the existing wiring before disconnecting terminals. The oval case mounts via a standard snap-in or strap bracket inside the blower compartment.\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 Designed for the Carrier \u003cstrong\u003ePG8MAA066135ACJA\u003c\/strong\u003e gas furnace blower motor circuit. Note: P291-1003 has been superseded by P291-1004 (440V-rated upgrade); both MFD ratings are identical and the upgraded voltage rating is a direct, compatible replacement. Always verify the MFD value on your original capacitor's label before ordering. Have a question about fitment? Our HVAC parts specialists verify compatibility before you buy — \u003cstrong\u003eorder now and receive same-day shipping.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642860294515,"sku":"CARRIE-PG8MAA066135ACJA-CAPACITOR-P291-1003","price":15.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642860327283,"sku":"CARRIE-PG8MAA066135ACJA-CAPACITOR-P291-1003-GEN","price":13.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-P291-1003_1b83f382-510a-4a3e-90c9-b1a3c8004873.jpg?v=1775038739","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8maa066135acja-capacitor-42n3s0","provider":"National HVAC Parts","version":"1.0","type":"link"}