SKU: 2405852576

Lennox Flame Sensor For Furnace 69W43 - Alternate / Replacement Part Numbers: 69W4301, LB-74940B, LB74940B, 102431-02 - IN STOCK

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Description

Lennox Flame Sensor For Furnace 69W43 - Alternate / Replacement Part Numbers: 69W4301, LB-74940B, LB74940B, 102431-02 - IN STOCKLennox 69W43 Furnace Flame Sensor OEM Ignition Safety Component The Lennox 69W43 Flame Sensor is an OEM ignition safety part designed to detect the presence of a burner flame in gas furnace systems. By verifying that the flame is present after ignition, this sensor helps prevent unburned gas from accumulating and protects your home and HVAC equipment. This flame sensor features precise rod measurements for compatibility with a wide range of Lennox

Lennox 69W43 Furnace Flame Sensor – OEM Ignition Safety Component

The Lennox 69W43 Flame Sensor is an OEM ignition safety part designed to detect the presence of a burner flame in gas furnace systems. By verifying that the flame is present after ignition, this sensor helps prevent unburned gas from accumulating and protects your home and HVAC equipment.

This flame sensor features precise rod measurements for compatibility with a wide range of Lennox models. The rod measures 1-15/16" to the elbow, and 4-5/16" from the base plate to the elbow, ensuring a proper fit and consistent performance.

If you're experiencing ignition lockouts or intermittent heating, a faulty flame sensor may be to blame. Replacing it with the 69W43 restores reliable furnace operation and helps maintain energy efficiency and safety.

Key Features:

  • OEM Lennox flame sensor for gas furnaces

  • Verifies flame presence to support safe operation

  • Helps prevent ignition failure and system lockouts

  • Compatible rod sizing:

    • 1-15/16" from rod tip to elbow

    • 4-5/16" from base plate to elbow

  • Durable construction for long-term use

  • Easy to install and field-replaceable

Alternate / Replacement Part Numbers:

  • 69W4301

  • LB-74940B

  • LB74940B

  • 102431-02

Ensure reliable furnace ignition and safe heating performance with the Lennox 69W43 flame sensor—engineered to OEM specs for precise flame detection.

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 2405852576

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4.7 ★★★★★
Based on 24 reviews
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G
Verified Purchase
Grandmother
Waukegan, US
★★★★★ 5
Necessary for a small dog.
These are great for a small dog! They can get their mouth around it unlike a round ball. My dog is obsessed with these. They are great for making him love a new guest to the house. All they have to do is squeak and throw the toy and they have a new friend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
A
Verified Purchase
Amanda
Chelsea, US
★★★★★ 4
Great for little dogs but squeaker breaks too easily
My Maltese is about 4.5 pounds and absolutely loves these! He got very excited to play with it right away. The shape is like a slightly flattened ball which is great bc he can pick it up in his tiny mouth. It’s actually quite cute to see him run with it back to me. When you throw it, the way it bounces and rolls is very unpredictable, which I think adds to the fun. Sometimes my pup drops it while running back and it goes rolling or awkwardly bouncing away from him which causes him to get more excited to chase it and grab it again. It’s been a highly entertaining toy for almost a week straight. The only downside is that the squeaker in it isn’t very durable. After a few days of playing and chewing to squeak it himself, the squeaker barely makes any noise. My pup isn’t an aggressive chewer at all so if your dog is an aggressive chewer, the squeaker really will not last.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 9, 2022
R
Verified Purchase
Rebec
New York, US
★★★★★ 5
G for small dogs
My Havanese absolutely loves these small toys, which we refer to as pucks. They are the perfect size for him. His previous favorite was a small green pig, but ever since we purchased these for his second birthday, he has shown no interest in the pig. They are easy to throw and fit comfortably in his mouth. I plan to purchase more. I would not recommend for strong chewers. My only complaint is I wish they all had happy or crazy faces instead of angry or sad ones.
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Reviewed in the United States on April 5, 2026
K
Verified Purchase
Kathleen iannotti
Battle Creek, US
★★★★★ 5
hours of fun
my dogs really loved this toy. I would highly recommend this, but the squeaker is louder than normal so if noise bothers you, then I would not recommend.
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Reviewed in the United States on March 18, 2026
V
Verified Purchase
VegasHawkeye
Battle Creek, US
★★★★★ 5
Picky dog approved!
Color: S6-muti-color, Color: S6-muti-color
I have wasted so much money on dog balls that they won't even pick up! They finally were obsessed with the Kong rubber green/blue or red/blue ones, but they're $3+. each, and they break from the dogs squishing it. I honestly had zero expectations on these, and they BOTH picked them up on the first throw! That's huge!! Seem to work fine in the ChuckIt. As for the squeaker, at first I was like "Oh nooooo." when they both loudly started! Much to my (and my neighbors') happiness, the squeakers stopped working after a couple minutes. 🤣
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Reviewed in the United States on February 2, 2025

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