OEM Carrier Single Run Capacitor Kit 4 MFD + 15 MFD 370V for Model PY2PNB042060AA

This OEM-matched single run capacitor kit includes both the P291-0403 (4 MFD 370V) and P291-1503 (15 MFD 370V) oval run capacitors — the factory-specified replacements for the Carrier PY2PNB042060AA packaged unit. Each capacitor stores and releases the precise electrical charge required to start and sustain its respective motor. When either capacitor fails, you'll hear humming with no motor movement, notice the unit short-cycling within minutes of startup, or find the system tripping on high-pressure lockout due to overheating from a stalled condenser fan.

• Specs: P291-0403 — 4 MFD (microfarad) | 370V rated | Oval case | 50/60 Hz | P291-1503 — 15 MFD | 370V rated | Oval case | 50/60 Hz | Factory ±5% tolerance on both units
• OEM vs Generic: OEM Carrier/Totaline capacitors are 100% electrically tested at the factory and meet exact MFD tolerance. Generic capacitors often run ±10% MFD drift, which accelerates motor winding stress and shortens compressor life.
• Install difficulty: 2/5 — Always discharge capacitors before handling — they store lethal voltage even with power off. Tools needed: 1/4" nut driver, insulated needle-nose pliers, multimeter with capacitance mode. Photograph all wiring before disconnecting. Verify MFD and voltage ratings match your unit's data plate.
• Warranty: 1-year OEM factory warranty on both capacitors. Ships same business day from our stocked warehouse.

Compatibility: This kit fits the Carrier PY2PNB042060AA packaged unit. Note: P291-1503 has been superseded — we supply the direct OEM replacement P291-1504 (15 MFD 440V) where stock of P291-1503 is exhausted; the 440V rating is backward-compatible with 370V applications. Always confirm MFD ratings against your unit's data plate before installation. Our fitment team is available to verify compatibility before you order.