---
product_id: 413976440
title: "Ultra Durable 52W29 Furnace Flame Sensor Replacement Part by BlueStars - Exact Fit for Lennox, Armstrong & Ducane Furnaces - Replaces 52W2901 LB47940A 31L71 31L7101"
brand: "bluestars"
price: "€ 40.15"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/413976440-ultra-durable-52w29-furnace-flame-sensor-replacement-part-by-bluestars
store_origin: NL
region: Netherlands
---

# 52W29 exact OEM fit Compatible with 10+ furnace models High durability metal build Ultra Durable 52W29 Furnace Flame Sensor Replacement Part by BlueStars - Exact Fit for Lennox, Armstrong & Ducane Furnaces - Replaces 52W2901 LB47940A 31L71 31L7101

**Brand:** bluestars
**Price:** € 40.15
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your furnace’s heartbeat — don’t get left in the cold!

## Quick Answers

- **What is this?** Ultra Durable 52W29 Furnace Flame Sensor Replacement Part by BlueStars - Exact Fit for Lennox, Armstrong & Ducane Furnaces - Replaces 52W2901 LB47940A 31L71 31L7101 by bluestars
- **How much does it cost?** € 40.15 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/413976440-ultra-durable-52w29-furnace-flame-sensor-replacement-part-by-bluestars)

## Best For

- bluestars enthusiasts

## Why This Product

- Trusted bluestars brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Crafted from premium metal materials ensuring long-lasting performance and reliability under constant heat exposure.
- • **Effortless DIY Fix:** Save time and money by easily replacing your faulty sensor and restoring furnace heating without professional help.
- • **Lifetime Confidence:** Backed by a 100% lifetime warranty, guaranteeing satisfaction and peace of mind with every purchase.
- • **Safety-First Sensor:** Monitors flame presence to instantly shut off gas valve, preventing dangerous gas leaks and ensuring home safety.
- • **Precision OEM Compatibility:** Fits Lennox, Armstrong & Ducane furnaces flawlessly, replacing multiple part numbers for seamless installation.

## Overview

The BlueStars 52W29 Furnace Flame Sensor is a premium, exact-fit replacement part designed for Lennox, Armstrong, and Ducane furnaces. Engineered from durable metal, it ensures reliable flame detection to prevent gas leaks and furnace malfunctions. Compatible with over 10 furnace models and multiple OEM part numbers, it offers an easy, cost-effective solution to restore heating performance, backed by a lifetime warranty for ultimate peace of mind.

## Description

Ultra Durable 52W29 Furnace Flame Sensor Replacement Part by BlueStars - Exact Fit for Lennox, Armstrong & Ducane Furnaces - Replaces 52W2901 LB47940A 31L71 31L7101

## Features

- 😊 𝟏𝟎𝟎% 𝐋𝐈𝐅𝐄𝐓𝐈𝐌𝐄 𝐖𝐀𝐑𝐑𝐀𝐍𝐓𝐘: Customer satisfaction is our priority. If for any reason you're not completely satisfied, we will compensate you and offer extra benefits to ensure your rights. Buy with confidence!
- 😊 MODEL NUMBER: 52W29 Furnace Flame Sensor. The flame sensor monitors the burner to detect whether or not a flame is present. If the sensor does not detect a flame, it shuts the gas valve off, preventing raw gas from dumping into your home. Over time, a flame sensor may lose it's the ability to sense the flame, even when the flame is present.
- 😊 HIGH COMPATIBILITY: It is made exactly fit for most top name brands (Lennox, Armstrong & Ducane) and replaces part numbers: 52W2901, LB47940A, 31L71, 31L7101 - Fits Most Series of Models G40, G41, G50, G51, G60, G61, and G71 Furnaces. For details, see below or if you are unsure about the compatibility, feel free to contact us and we will be happy to help you.
- 😊 PREMIUM QUALITY: The replacement part is made from durable high-quality material and well-tested by the manufacturer - Meets OEM standards - Ensure long-lasting and effective performance. The total length is approximately 5.3 inches.
- 😊 SAVE TIME AND SAVE MONEY: Inexpensive way to fix or repair a furnace. This part fixes the following symptom: The furnace does not heat.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | BlueStars |
| Part Number | 52W29 |
| Product Dimensions | 2.54 x 2.54 x 2.54 cm; 10 g |
| Item model number | 52W29 |
| Colour | Blue |
| Style | Basic |
| Material | Metal |
| Item Package Quantity | 1 |
| Included Components | 52W29 Furnace Flame Sensor |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 10 g |

## Product Details

- **Brand:** BlueStars
- **Style:** Basic
- **Colour:** Blue
- **Item weight:** 0.01 Kilograms
- **Alarm:** Audible
- **Compatible devices:** Furnace
- **Material:** Metal
- **Number of items:** 1
- **Manufacturer:** BlueStars

## Images

![Ultra Durable 52W29 Furnace Flame Sensor Replacement Part by BlueStars - Exact Fit for Lennox, Armstrong & Ducane Furnaces - Replaces 52W2901 LB47940A 31L71 31L7101 - Image 1](https://m.media-amazon.com/images/I/615trlPIDPL.jpg)
![Ultra Durable 52W29 Furnace Flame Sensor Replacement Part by BlueStars - Exact Fit for Lennox, Armstrong & Ducane Furnaces - Replaces 52W2901 LB47940A 31L71 31L7101 - Image 2](https://m.media-amazon.com/images/I/71F5ZOUnSVL.jpg)
![Ultra Durable 52W29 Furnace Flame Sensor Replacement Part by BlueStars - Exact Fit for Lennox, Armstrong & Ducane Furnaces - Replaces 52W2901 LB47940A 31L71 31L7101 - Image 3](https://m.media-amazon.com/images/I/71Dn7dOTz0L.jpg)
![Ultra Durable 52W29 Furnace Flame Sensor Replacement Part by BlueStars - Exact Fit for Lennox, Armstrong & Ducane Furnaces - Replaces 52W2901 LB47940A 31L71 31L7101 - Image 4](https://m.media-amazon.com/images/I/7117KvQc7-L.jpg)
![Ultra Durable 52W29 Furnace Flame Sensor Replacement Part by BlueStars - Exact Fit for Lennox, Armstrong & Ducane Furnaces - Replaces 52W2901 LB47940A 31L71 31L7101 - Image 5](https://m.media-amazon.com/images/I/71A-E1jTFCL.jpg)

## Frequently Bought Together

- BlueStars Ultra Durable 52W29 Furnace Flame Sensor Replacement Part - Exact Fit for Lennox, Armstrong & Ducane Furnaces - Replaces 52W2901 LB47940A 31L71 31L7101
- Invenses 41-604 Ignitor
- Upgraded Replacement 0130F00010 fits Goodman Furnace Flame Sensor B11726-06 (3 Pack)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nl/products/413976440-ultra-durable-52w29-furnace-flame-sensor-replacement-part-by-bluestars](https://www.desertcart.nl/products/413976440-ultra-durable-52w29-furnace-flame-sensor-replacement-part-by-bluestars)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-24*