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18G89 Flame Sensor
18G89 Flame Sensor
Exact Replacement 18G89 For Lennox Armstrong Furnace Flame Sensor
Exact Replacement 18G89 For Lennox Armstrong Furnace Flame Sensor
Exact Replacement 18G89 For Lennox Armstrong Furnace Flame Sensor

Exact Replacement 18G89 For Lennox Armstrong Furnace Flame Sensor

MSRP: BMD21.31
BMD5.80
(You save BMD15.51 )
SKU:
18G89
UPC:
840993038266
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Product Description

Exact Replacement Part number 18G89

Furnace Flame Sensor

Replacement for Lennox, Armstrong number 18G8901

3-1/8 inch in total length
The 18G89 Furnace Flame Sensor detects the presence of a flame and sends an electrical signal to a central controller. 

Product Reviews

Write a Review
  • 5
    exact replacement

    Posted by dennis sibson on 23rd Dec 2022

    27 year old Lennox had a crack in the sensor thought I would have a harder time locating parts. Thank you

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