OEM Carrier Single Run Capacitor 35 MFD 440V for Model YAC36100YAC108T

This OEM single run capacitor (part number P291-3504) is the factory-specified replacement for the Carrier YAC36100YAC108T air conditioning unit. The run capacitor provides a continuous phase-shifted current to keep the compressor or fan motor running smoothly after startup. When this capacitor weakens or fails, you'll commonly experience a humming compressor that won't start, intermittent short-cycling, or a complete loss of cooling — symptoms that point directly to capacitor failure before any other component is condemned.

• Specs: 35 MFD (microfarad) | 370/440V rated | Oval case | ±5% factory tolerance | Non-PCB dielectric fluid | UL approved
• OEM vs Generic: This is the genuine Carrier/Totaline OEM capacitor, factory-matched to exact MFD tolerance. Generic aftermarket units often run at ±10% MFD deviation, which accelerates motor winding stress and shortens compressor service life.
• Install difficulty: 2/5 — Always discharge the capacitor fully before handling any terminals. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (capacitance mode). Photograph all wiring before disconnecting. Swap terminals one at a time to avoid miswiring.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed for Carrier model YAC36100YAC108T. Always verify the MFD rating and voltage on your unit's data plate before ordering to confirm an exact match. Cross-references include HC91CA035, HC90AB035, HC91CB035, HC96CA035, and P291-3503. Have a question about fitment? Our HVAC parts specialists verify compatibility before you order — reach out before checkout.