OEM Carrier Single Run Capacitor 4 MFD 370V for Model PY1PPB048130NBAA

This OEM single run capacitor is the factory-specified replacement for the Carrier PY1PPB048130NBAA packaged unit. The run capacitor maintains a continuous phase-shifted current to keep the fan motor or compressor running efficiently after startup. When this component fails, you'll typically notice the motor humming without turning over, the system tripping on thermal overload shortly after startup, or the unit failing to cool or heat entirely — all classic signs of capacitor failure.

• Specs: 4 MFD (microfarad) | 370 VAC rated | Oval case | Factory-matched ±5% tolerance | OEM Part Numbers: P291-0403 / P291-1503 (superseded by P291-0404)
• OEM vs Generic: This OEM Carrier/Totaline capacitor is reliability-tested to 60,000 service hours and subjected to 100% electrical testing at the factory. Generic capacitors often carry wider MFD tolerances (±10%), which can accelerate motor wear and shorten equipment life.
• Install difficulty: 1/5 — One of the easiest HVAC repairs. Tools needed: flathead or Phillips screwdriver, needle-nose pliers, multimeter (to verify discharge). Always discharge the capacitor fully before handling terminals and photograph wiring before disconnecting.
• Warranty: 1-year OEM factory warranty. In stock — ships same business day from our warehouse.

Compatibility: Fits Carrier model PY1PPB048130NBAA packaged unit. Verify the MFD rating and voltage on your unit's data plate before ordering. This part also cross-references OEM numbers HC90AA004, HC91CA004, and HC90AB004. Have questions about fitment? Our HVAC parts team verifies compatibility before you order — reach out before you buy.