25" bore bearing

The Lennox 47K19 Defrost Sensor is a critical OEM replacement part designed for high-performance heat pump maintenance

Disconnect power and use a multimeter to check the resistance across the leads

OEM Reliability: Manufactured by Nortek to meet the exact electrical and thermal tolerances of Reznor commercial heaters

York S1-024-35663-000 Fuse Link Els PW 17895 25" bore bearingThe York S1 024 35663 000 Fuse Link is a critical OEM HVAC safety component engineered for precise thermal protection in residential and commercial heating equipment. This surface mount auto limit switch serves as a high limit safety, designed to open the electrical circuit when internal plenum or heat exchanger temperatures exceed safe operating parameters. Rated for 121C (244F), it provides a localized response to overheating conditions, effectively