This OEM replacement compressor is a direct substitute for numerous legacy units

Engineered for industrial-grade durability in high-cycle HVAC control systems

you should read zero ohms at room temperature

and 8D series compressors

Lennox 43K53 Flame sensor This OEM replacement compressor isThe Lennox 43K53 Flame Sensor is a critical OEM safety component engineered for precise flame rectification in gas fired heating systems. This double prong flame sensor, also identified by part number 43K5301, monitors the combustion process to ensure a stable pilot or burner flame is present before allowing the gas valve to remain open. Built with high temperature resistant materials and a 4 inch overall length, this Lennox furnace flame sensor is a