OEM Carrier Single Run Capacitor 10 MFD 370V for Model PG8MAA066135ABJA

This OEM single run capacitor is the factory-specified replacement for the Carrier PG8MAA066135ABJA gas furnace. The run capacitor provides the sustained electrical charge needed to keep the blower motor spinning at full efficiency throughout each heating cycle. When it degrades or fails, you'll notice the furnace blower humming without starting, running sluggishly, or tripping the high-limit switch due to reduced airflow — all classic signs of a weak or failed run capacitor.

• Specs: 10 MFD (microfarad) | 370–440V rated | Oval case | ±5% tolerance | 50/60 Hz | Non-PCB | Manufacturer part cross: HCKS100V370102Z (Hartland Controls / Totaline)
• OEM vs Generic: This OEM-grade capacitor is manufactured to Carrier's exact factory specifications. Generic capacitors frequently ship with ±10% MFD tolerance, accelerating motor wear, reducing efficiency, and shortening blower motor life over time.
• Install difficulty: 2/5 — Always discharge the capacitor before handling any terminals. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (capacitance mode). Photograph all wiring connections before disconnecting the old unit. Match the MFD and voltage ratings exactly to your data plate.
• Warranty: 1-year OEM manufacturer warranty. In-stock and ships same business day from our NationalHVACParts.com warehouse.

Compatibility: Designed for the Carrier PG8MAA066135ABJA gas furnace blower motor circuit. Note: OEM part number P291-1003 has been superseded by P291-1004 — this listing ships the current valid replacement. Always verify the MFD rating and voltage on your unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment before you purchase.