OEM Carrier Single Run Capacitor 4 MFD 370V for Model PY2PEB042090NB

This OEM single run capacitor is the factory-specified replacement for the Carrier PY2PEB042090NB packaged unit. The run capacitor sustains the continuous electrical phase shift required to keep the condenser fan motor or blower motor spinning during operation. When it degrades or fails, you'll typically experience a humming motor that won't start, intermittent shutdowns, or a completely non-responsive motor — all classic signs of capacitor failure.

• Specs: 4 MFD (microfarad) | 370 VAC rated | Oval case | 50/60 Hz | Factory-matched ±5% tolerance | Replaces OEM part numbers P291-0403 and P291-1503
• OEM vs Generic: This is a genuine Carrier/Totaline-sourced capacitor tested to factory standards. Generic units often run wider MFD tolerances, which accelerates motor wear and can shorten compressor or fan motor life significantly.
• Install difficulty: 2/5 — Always discharge the capacitor fully before handling. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (for verification). Photograph all wiring connections before disconnecting the old unit.
• Warranty: 1-year OEM factory warranty. Ships same business day from our stocked warehouse.

Compatibility: Designed for the Carrier PY2PEB042090NB packaged unit. Always verify the MFD rating and voltage on your unit's data plate before ordering — never substitute a lower voltage rating. Note: P291-1503 (15 MFD, 370V) has been discontinued by Carrier; the current OEM replacement is P291-1504 (15 MFD, 440V). Contact our team for fitment verification before ordering.