OEM Carrier Single Run Capacitor 10 MFD 370V for Model PG8MAA048135ACJA

This OEM single run capacitor (part number P291-1003) is the factory-specified replacement for the Carrier PG8MAA048135ACJA gas furnace. The run capacitor provides the sustained phase-shifted current that keeps the blower motor spinning at proper speed and efficiency. When this capacitor weakens or fails, you'll typically notice a blower motor that hums but won't spin, a furnace that struggles to circulate air, or a system that overheats and trips on thermal limit — all classic signs of capacitor failure.

• Specs: 10 MFD (microfarad) | 370V rated | Oval case | ±5% factory tolerance | 50/60 Hz | Operating temp: -40°C to +70°C
• OEM vs Generic: This is the factory-matched OEM capacitor sourced through Carrier's Totaline/Replacement Components Division. OEM units are held to tighter MFD tolerances than off-brand alternatives, protecting your blower motor from premature wear and nuisance callbacks.
• Install difficulty: 2/5 — Always discharge the capacitor before handling. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (capacitance mode). Photograph all wiring connections before disconnecting. Typically a 10–15 minute job for a confident DIYer.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered for the Carrier PG8MAA048135ACJA gas furnace blower motor circuit. Always verify the MFD rating and voltage printed on your existing capacitor's label before ordering to confirm fitment. Note: P291-1003 has been superseded by P291-1004 (440V-rated upgrade); both are functionally interchangeable on this model. Have questions about compatibility? Our HVAC parts team verifies fitment before you order — reach out before you buy.