OEM Carrier Single Run Capacitor 7.5 MFD 440V for Model UPFLOW100U4819A

This OEM single run capacitor is the factory-specified replacement for the Carrier UPFLOW100U4819A upflow furnace. The run capacitor stores and releases the electrical charge that starts and sustains the blower motor during each heating cycle. When it degrades or fails, you'll typically notice the blower humming without spinning, the furnace short-cycling, or a complete failure to circulate air — all of which can trigger a safety lockout and leave you without heat. Replacing this small but critical component is one of the most cost-effective furnace repairs available.

• Specs: 7.5 MFD (microfarad) | 370/440V rated | Oval form factor | Factory-matched tolerance | UL approved pressure-sensitive interrupter | RoHS compliant | Tested to 60,000 service hours
• OEM vs Generic: This is a genuine OEM Carrier capacitor (P291-0753 / superseded by P291-0754), manufactured to exact factory tolerances. Generic capacitors often carry wider MFD variance (±10%), which accelerates motor bearing wear and shortens blower motor life over time.
• Install difficulty: 2/5 — Always discharge the capacitor before touching terminals. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter. Photograph all wiring connections before disconnecting the old unit. The oval form factor fits the original mounting bracket with no modification.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse — order by 3 PM local time for same-day dispatch.

Compatibility: Fits Carrier model UPFLOW100U4819A upflow gas furnace. OEM part number P291-0753 has been superseded by P291-0754 — both numbers are fulfilled with the current production unit at identical 7.5 MFD / 440V specs. Always verify the MFD rating and voltage on your unit's data plate or existing capacitor before ordering. Our fitment team is available to confirm compatibility before you buy.