Lennox 13P93 Fan Limit Switch 30067439-890 but you should always verify

but you should always verify the part number against your specific burner assembly breakdown to ensure compatibility

specifications of this spring

though following the original wiring diagram is recommended for consistency

The Modine 5H0719560002 Transformer is a critical OEM replacement part designed for high-performance voltage regulation in Modine unit heaters and furnaces

the Sensus 071-03409-002 Green Spring is designed for the 6–14" WC range

Lennox 13P93 Fan Limit Switch 30067439-890 but you should always verifyMaintain precise thermal regulation and safety standards in forced air heating systems with the Lennox 13P93 Fan Limit Switch. This genuine OEM component is the direct replacement for 11M40 (as well as 10H37 and 43F4501) and is essential for managing blower activation and high limit protection. Engineered by Honeywell (Model L4064B2210), this HVAC combination fan and limit control features an 11. 5 inch insertion length and a 3 4 inch diameter probe