OEM Carrier Single Run Capacitor P291-0753 for Model PG8UAA042091ACJA

This OEM single run capacitor (part number P291-0753) is the factory-specified replacement for the Carrier PG8UAA042091ACJA packaged gas unit. The single run capacitor provides the sustained electrical charge needed to keep the condenser fan motor or blower motor running efficiently after startup. When this capacitor degrades or fails, you'll notice symptoms such as a humming motor that won't spin, intermittent short-cycling, warm air from supply vents, or a complete failure of the affected motor — leaving your system unable to condition the space.

• Part Number: P291-0753 | OEM-matched specifications | Factory-rated MFD and voltage — verify your unit's data plate for exact µF and VAC values before ordering
• OEM vs Generic: This is a genuine Carrier OEM capacitor manufactured to exact factory tolerances (±3% MFD). Aftermarket capacitors often carry ±10% tolerances, which accelerates motor winding stress and shortens equipment life — especially critical in a packaged rooftop or ground-mount unit exposed to outdoor temperature extremes.
• Install Difficulty: 2/5 — Always disconnect power at the disconnect block and discharge the capacitor before handling. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, and a multimeter to verify the old capacitor has fully discharged. Photograph all wiring before disconnecting terminals.
• Warranty & Shipping: Backed by a 1-year OEM factory warranty. In-stock orders ship same business day from our warehouse — get your Carrier packaged unit back online fast.

Compatibility: Designed for the Carrier PG8UAA042091ACJA 3.5-ton, 91,000 BTU packaged gas unit. Always cross-reference the MFD (µF) and voltage rating printed on your existing capacitor and the unit's wiring diagram to confirm fitment. Our HVAC parts specialists are available to verify compatibility before you order — no guesswork required.