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18G89 Furnace Flame Sensor fit for Lennox 18G8901, Used In G12 G16 G20 G23 Series Furnaces

4.8 (1) Write Review
Free shipping on orders over $29.99

$18.82

$ 8 .99 $8.99

In Stock
  • Brand-New, Includes (1) 18G89 Furnace Flame Sensor.
  • Flame Sensor 3-1/8 inch in total length.
  • Replacement for Lennox, Armstrong number 18G8901.
  • Commonly Found In Models Starting With G11E, G12E, G16. G16R, G17, G17R, G20, G20R, G23, GSC10, LD20, LF20 And 78RGF.


The 18G89 Furnace Flame Sensor detects the presence of a flame and sends an electrical signal to a central controller.


Nick Piazza
Reviewed in the United States on December 17, 2024
Not exactly the same, the original one had a 45 degree angle to reach the flame. I could not find the that style so i bought this one and bent it a little to reach properly. Works fine now.