OEM Carrier Single Run Capacitor 4 MFD 370V for Model PY2PPB060115AA

This OEM single run capacitor is the factory-specified replacement for the Carrier PY2PPB060115AA system. Run capacitors maintain the consistent phase shift needed to keep fan motors and compressors running efficiently after startup. When this capacitor weakens or fails, you'll typically notice the motor humming but not spinning, the system short-cycling, or a complete no-start condition — symptoms that can quickly cascade into compressor damage if left unaddressed.

• Specs: 4 MFD (microfarad) | 370 VAC rated | Oval case | 50/60Hz | High-grade metallized polypropylene film construction | ±5% capacitance tolerance
• OEM Part Numbers: P291-0403 (primary) | P291-1003 | P291-2503 — all three are factory-authorized Carrier/Totaline single run capacitors for this application. OEM units are subjected to 100% electrical testing and are UL approved with a patented pressure-sensitive interrupter for safe failure.
• OEM vs Generic: OEM capacitors are built to exact factory tolerances and rated to 60,000 service hours of proven reliability. Generic alternatives often use thinner dielectric film and wider tolerance bands, which can shorten motor life and lead to premature system failure.
• Install Difficulty: 2/5 — Always discharge the capacitor fully before handling using an insulated resistor or discharge tool. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (capacitance mode). Photograph all wiring connections before removal. Match the MFD rating exactly; voltage rating must be equal to or greater than the original.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PY2PPB060115AA. Also replaces legacy part numbers HC90AA004, HC91CA004, HC90AB004, and GE/Genteq C304L (97F5704). Always verify the MFD and voltage rating on your unit's data plate before ordering. Have a question about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today and get your system back up and running fast.