OEM Carrier Single Run Capacitor 10 MFD 370V for Model PG8MAA066135AAJA

This OEM single run capacitor (Part# P291-1003) is the factory-specified replacement for the Carrier PG8MAA066135AAJA gas furnace. The run capacitor maintains the continuous phase-shifted current supply that keeps the blower motor spinning at rated RPM throughout the heating cycle. When this capacitor weakens or fails, you'll notice the blower motor humming without starting, running sluggishly at reduced airflow, or stalling mid-cycle — all signs that heat is not being properly distributed through your home.

• Specs: 10 MFD (microfarad) | 370V rated (370–440V compatible) | Oval case | ±6% tolerance | 10,000 AFC protected | Non-PCB | Operating range: -40°C to +70°C | 50/60Hz
• OEM vs Generic: This is the genuine Carrier/Totaline OEM capacitor manufactured to factory-exact tolerance. Generic aftermarket capacitors often exceed ±10% MFD variance, which accelerates blower motor winding stress and can dramatically shorten motor service life — especially on aging furnaces.
• Install difficulty: 1/5 — One of the simplest HVAC repairs available. Discharge the capacitor before handling any terminals. Tools needed: flathead screwdriver, needle-nose pliers, multimeter. Always photograph wiring connections before disconnecting the old capacitor.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PG8MAA066135AAJA gas furnace blower motor circuit. Cross-references with Totaline P291-1003, Genteq C310L / 97F9002. Verify MFD rating and voltage on your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy — no guesswork required.