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18G89 Flame Sensor

Exact Replacement 18G89 For Lennox Armstrong Furnace Flame Sensor

MSRP: BOB111.08
BOB41.22
(You save BOB69.87 )
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

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  • 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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