The Lennox Y9634 run capacitor, also known as the AmRad USA2028 run capacitor, is a high-quality HVAC replacement part designed for reliable performance in air conditioning and heat pump systems. This run capacitor is rated at 4 microfarads (MFD) and 440 volts, making it ideal for single-phase motors, blower motors, fan motors, compressor motors, and other HVAC applications that require precise motor phase stabilization and improved efficiency.

 

Manufactured to meet OEM specifications, the Lennox Y9634 run capacitor ensures consistent electrical performance, reduced energy consumption, and stable motor operation. The oval can design with durable terminal construction simplifies installation and provides long-lasting service life in residential and light commercial systems. The 4 MFD 440 V rating is engineered to match exact electrical requirements for compatible Lennox units and many other HVAC brands needing a mid-range capacitance run component.

 

This replacement run capacitor supports improved startup torque, reduced motor overheating, smoother cycling, and extended equipment life, helping maintain system efficiency and reduce the risk of premature motor failure. The Lennox Y9634 AmRad USA2028 run capacitor is ideal for HVAC technicians, maintenance professionals, and DIY homeowners seeking dependable performance and compatibility with a wide range of air handlers and condensing units.

Use this run capacitor when you need a direct, specification-matched replacement for worn or failed capacitors in HVAC systems to restore proper motor operation and efficiency. Always verify electrical ratings, terminal configuration, and physical size to ensure fitment with your specific system.