OEM Carrier Single Run Capacitor 4 MFD 370V for Model PY1PEB048090ABAA

This is the factory-specified OEM single run capacitor for the Carrier PY1PEB048090ABAA packaged unit. Rated at 4 MFD (microfarad) at 370 VAC, this oval-style run capacitor remains energized throughout the entire operating cycle of your fan motor or compressor — providing the phase-shifted current needed for smooth, efficient motor operation. When a run capacitor fails, you'll typically notice the unit humming without starting, a fan motor that spins weakly or only with a manual push, or a system that short-cycles and shuts off shortly after startup. This genuine Carrier / Totaline part (P291-0403) is the correct factory replacement and also cross-references to alternate OEM part numbers P291-1003 and P291-1503.

• Specs: 4 MFD (µF) | 370 VAC | Oval case | 50/60 Hz | Replaces OEM P/N 97F5704, HC90AA004, HC91CA004, HC90AB004
• OEM vs Generic: This OEM capacitor is built to ±5% MFD tolerance and tested to 60,000 service hours with 100% electrical testing at the factory. Generic alternatives often run ±10% tolerance, which accelerates motor winding wear and increases compressor start stress over time.
• Install difficulty: 1/5 — Disconnect power at the disconnect box and allow 5 minutes for the capacitor to self-discharge before touching terminals. Tools needed: flathead or Phillips screwdriver, needle-nose pliers, optional multimeter to verify discharge. Always photograph existing wiring before removal.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse. Genuine Carrier / Totaline part — not an imitation.

Compatibility: Fits Carrier model PY1PEB048090ABAA packaged unit. Also compatible with other Carrier, Bryant, and Payne equipment specifying a 4 MFD 370V oval single run capacitor. Always verify the MFD rating and voltage on your unit's data plate or existing capacitor label before ordering. Our fitment team is available to confirm compatibility before you buy.