OEM Carrier Dual Run Capacitor 45+5 MFD 440V for Model PY1RJA036074ABWA

This is the genuine OEM Carrier dual run capacitor (part number P291-4554RS) factory-specified for the Carrier PY1RJA036074ABWA packaged unit. The dual run capacitor simultaneously powers both the compressor and the condenser fan motor, storing and releasing the electrical charge needed to start and sustain each motor through every cooling cycle. When this capacitor fails, you'll typically notice the system humming without starting, the compressor or fan motor running intermittently, or the unit tripping on thermal overload and short-cycling within minutes. Related OEM part numbers for this system include HC30GB230 (draft inducer motor w/ capacitor), P291-0403, and P291-1003 (single run capacitors).

• Specs: 45+5 MFD (microfarad) | 440V rated | Round case | 50/60 Hz | ±6% tolerance | AFC 10,000 | Castor Oil Protected | No-PCB | Dimensions: 3 15/16" can height, 2 7/16" diameter
• OEM vs Generic: This is a genuine Carrier OEM capacitor built to exact factory tolerance (±6%). Off-brand generics often run ±10% MFD deviation, which accelerates compressor wear, shortens motor life, and can void equipment warranties.
• Install difficulty: 2/5 — Always discharge the capacitor fully before handling any terminals — stored charge can cause serious injury. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (capacitance mode). Photograph all terminal wiring before disconnecting. Confirm MFD and voltage ratings on your unit data plate before installation.
• Warranty: 1-year OEM manufacturer warranty against defects. Orders placed before our daily cutoff ship same business day from our warehouse.

Compatibility: Designed for the Carrier PY1RJA036074ABWA packaged unit. Also replaces legacy Carrier capacitor part numbers HC98KA046 and 319186-702. Always verify the MFD rating and voltage on your unit's data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you order — reach out and we'll confirm compatibility fast.