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Description
69W43 Furnace Flame Sensor - For Lennox, Armstrong & Ducane Furnaces - Replaces 69W4301 LB-74940B LB74940B - 2 Pack69W43 Furnace Flame Sensor Key Features Detects burner flame to enable safe and continuous furnace operation. Constructed with a durable cermet insulator and a corrosion resistant sensing rod. Angled probe design for direct replacement and optimal positioning. Replaces Cross Reference Part Numbers 69W43 69W4301 LB 74940B LB74940B 102431 02 790 801A1 Compatibility & Fitment Designed as a direct replacement part for specific furnace models from: Lennox
69W43 Furnace Flame Sensor
Key Features
- Detects burner flame to enable safe and continuous furnace operation.
- Constructed with a durable cermet insulator and a corrosion-resistant sensing rod.
- Angled probe design for direct replacement and optimal positioning.
Replaces / Cross-Reference Part Numbers
- 69W43
- 69W4301
- LB-74940B
- LB74940B
- 102431-02
- 790-801A1
Compatibility & Fitment
- Designed as a direct replacement part for specific furnace models from:
- Lennox
- Ducane
- Armstrong
- Note: Always confirm compatibility by checking your equipment's service manual and part number.
When to Replace
- Furnace ignites but shuts down after a few seconds.
- Burner flame will not stay lit.
- Visible damage, such as a cracked porcelain insulator on the existing sensor.
- Heavy carbon buildup or corrosion on the sensor rod that cleaning does not resolve.
Installation Tips
- Disconnect all electrical power to the furnace unit before beginning installation.
- Handle the new sensor by the porcelain base to avoid contaminating the metal rod with skin oils.
- Ensure the sensor rod is properly positioned to be enveloped by the burner flame during operation.
- Inspect the connecting wire for damage and ensure a secure connection.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.2 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Quick glow up
Color: Glistening Bronze #03, Size: 1 Fl Oz (Pack of 1)
This is a great bronzing shimmer for a little added glow before walking out the door! It's very lightweight and goes on very smooth with brush. I ended up buying and using a larger kabuki brush to brush on faster but the brush it comes with works ok as well. It's the perfect amount of bronze and shimmer.. not glittery or over the top and doesn't have a smell. Doesn't transfer on clothes but I always let it dry a few minutes before putting on clothes.
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Reviewed in the United States on April 1, 2026
★★★★★ 5
Beautiful Shimmer
Color: Rose Gold #01, Size: 1 Fl Oz (Pack of 1)
This worked well for a wedding. I thought it would be a little more bronzier but I loved the sparkle. It is my first time using a body shimmer though, so it did what I bought it for and next time just need to self tan prior!
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Lovely
Color: Silver White - 02, Color: Silver White - 02
This is the best body glitter I have ever owned. I have a spray one and it is not as shiny as this one. This one has a very good appearance. It literally is shining so bright without the lights being off. This is one drop on my hand that I spread around, it does go on as a liquid and then it dries up and soak in your skin . From the bottle It has a very fresh scent like a very, very light scent, but when you put on your skin, it doesn’t smell like anything so you can still put on your regular perfume without worrying about mixing fragrances. It’s a good decent size especially considering I only did one drop and I get so much glitter!
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Perfect Champagne Shimmer for Festivals & Events
Color: Champagne Gold - 01
Color- Champagne Gold shade.
So cute! Get it! I always end up getting compliments when I wear this to festivals/concerts/event. It works great not just on your face but all over your body like arms, chest, shoulders, anywhere you want a little extra glow. It adds a really cute shimmer without being too extreme or over-the-top. I especially like wearing it to festivals or events where there are lots of lights or sunshine, because that’s when it really catches the light and looks the best.
Once it dries, it has more of a matte finish with a soft shimmer rather than looking overly dewy or greasy. The champagne color blends really nicely with my neutral/tan skin tone, so it looks natural while still adding that fun sparkle. It’s a great little addition to any festival or event outfit.
A little bit goes a long way. I’ve probably used this around 20 times already and still have at least half the bottle left. Another huge plus is that it washes off easily and doesn’t flake everywhere or leave glitter all over the floors and counters like some other body glitters I’ve tried. Overall, a great product if you want a subtle but noticeable shimmer! ✨
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Reviewed in the United States on March 6, 2026
★★★★★ 5
Buy it!
Color: Champagne Gold - 01
I love the glitter on my body, it stays and is not sticky! But does get everywhere I touch haha
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Reviewed in the United States on April 29, 2026