Description
Ensure reliable ignition and safe furnace operation with the authentic Lennox LB‑74940A Flame Sensor Kit, designated as part number 52W29. As a direct OEM replacement, it delivers precise flame detection and consistent performance in Lennox and compatible gas-fired heating systems.
Features:
- Kit contains 1 Precision Speed Equipment flame sensor L68 (102431-01)
- Rod max temperature: 2190 deg. F
- Ceramic max temperature: 1000 deg. F
- Insulation max temperature: 250 deg. F
- Sauereisen Electrotemp Cement #8 max service temperature 2600 deg. F











