OEM Carrier Single Run Capacitor Kit 4 MFD + 15 MFD 370V for Model PY1PNB060090AAAA

This factory-matched OEM run capacitor kit includes both the P291-0403 (4 MFD 370V) and P291-1503 (15 MFD 370V) single oval run capacitors — the exact pair specified for the Carrier PY1PNB060090AAAA package unit. Run capacitors store and release the electrical charge required to keep the compressor and fan motors spinning at rated efficiency. When either capacitor fails, symptoms appear fast: you may hear a loud hum with no motor movement, notice the system short-cycling within minutes of startup, or find the unit tripping on thermal overload due to motor strain. Replacing both at the same service call is industry best practice, since capacitors age in parallel and a failing one accelerates stress on its mate.

• Specs — P291-0403: 4 MFD (microfarad) | 370V rated | Oval case | ±5% factory tolerance | UL approved | RoHS compliant
• Specs — P291-1503: 15 MFD (microfarad) | 370V rated | Oval case | ±5% factory tolerance | Proven to 60,000 service hours | Pressure-sensitive interrupter safety device
• OEM vs Generic: These Carrier Totaline OEM capacitors are 100% electrically tested at the factory and built to United Technologies reliability standards. Generic capacitors often ship with ±10% MFD tolerance, increasing motor amp draw and shortening compressor life — a costly trade-off on a package unit.
• Install difficulty: 2/5 — Always discharge capacitors before touching terminals (use a 20kΩ resistor or insulated screwdriver). Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (capacitance mode). Photograph all wiring before disconnecting. Match MFD and voltage on the data plate before installation.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse in original factory packaging.

Compatibility: Engineered for the Carrier PY1PNB060090AAAA packaged unit. Always verify MFD rating and voltage against your unit's data plate before ordering. Cross-references include HC90AA004, HC91CA004, and HC90AB004 for P291-1503. Not sure it fits? Our HVAC parts specialists verify fitment before you order — just reach out. Order now and ship today.