OEM Carrier Single Run Capacitor 10 MFD 370V for Model PG8JAA042090AAJA

This OEM single run capacitor is the factory-specified replacement part (P291-1003) for the Carrier PG8JAA042090AAJA gas furnace. The run capacitor provides the sustained electrical charge needed to keep the blower motor running at the correct speed. When this capacitor fails, you may notice the blower motor humming but not spinning, weak or intermittent airflow, the furnace short-cycling, or a complete blower motor failure — leaving your system unable to distribute conditioned air through your home.

• Specs: 10 MFD (microfarad) | 370V rated | Oval case | Factory-matched ±5% tolerance | 50/60Hz rated | Operating temp range: -40°C to +70°C
• OEM vs Generic: This genuine Carrier Totaline capacitor is reliability-tested to 60,000 service hours using high-grade metallized polypropylene film. Generic capacitors often carry wider tolerance variances, which can accelerate blower motor wear and shorten system life.
• Install difficulty: 2/5 — Always discharge the capacitor fully before handling. Tools needed: 1/4" nut driver, insulated needle-nose pliers, and a multimeter to verify capacitance. Photograph all wiring connections before disconnecting. Note: P291-1003 has been superseded by P291-1004 (440V-rated upgrade); a 440V capacitor is a safe, direct upgrade for a 370V application.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PG8JAA042090AAJA gas furnace. Always verify the MFD rating on your unit's data plate before ordering. Cross-references include: HC91CA010D, HC91CA010, HC90AB010, HC96AC010, and 97F9002. Have a fitment question? Our HVAC parts specialists verify compatibility before you order — contact us today and get your system back up and running fast.