OEM Lennox Run Capacitor 7.5 MFD 440V Oval — Y9289

The genuine OEM Lennox Y9289 is a 7.5 MFD, 440V oval run capacitor, made in the USA, designed for condenser fan and blower motor applications in Lennox HVAC equipment. As a run capacitor, it delivers the steady, phase-shifted charge a single-phase motor depends on to maintain proper torque and run speed, ensuring reliable airflow across the coil and efficient system operation throughout the cooling cycle.

When the Y9289 loses capacitance or fails outright, you'll often see the fan motor humming without spinning up, blades turning sluggishly, the outdoor unit tripping on high head pressure, or repeated no-cooling service calls. A bulging or leaking capacitor body and a meter reading below 7.5 MFD are definitive signs the part has degraded and is straining the motor it supports.

Installing the OEM Y9289 ensures the precise 7.5 MFD capacitance and 440V rating your Lennox motor was factory-matched to receive. Using a mismatched capacitor makes the motor run hot and inefficient, shortening its service life and risking warranty coverage. This USA-made genuine replacement restores full motor performance, guards the windings against premature failure, and keeps your Lennox system running exactly as engineered.