Lennox 25W57 - (100035-04) Wire-Ignition 50 – Reliable Ignition Wire for Optimal System Performance
The Lennox 25W57 (part number 100035-04) Wire-Ignition 50 is a high-quality ignition wire designed specifically for Lennox HVAC systems. Built to meet OEM standards, this ignition wire plays a critical role in delivering consistent and reliable electrical conductivity from the ignition module to the burner, ensuring dependable system startup every time.
Key Features:
- OEM Replacement Part – Genuine Lennox ignition wire, engineered to match original specifications for a seamless fit and performance.
- 50-Inch Length – Ample length provides flexible routing during installation, ideal for various unit configurations.
- Durable Insulation – Constructed with high-temperature resistant insulation for safe and long-lasting operation under demanding conditions.
- Secure Terminals – Factory-installed terminals ensure a solid connection and reduce installation time and error.
Applications:
Perfect for Lennox furnaces and other HVAC equipment requiring a 50-inch ignition wire. Replacing a worn or damaged ignition wire helps maintain proper combustion and system safety.
Why Choose OEM?
Using authentic Lennox parts like the 25W57 ensures compatibility, maintains warranty coverage, and supports long-term performance of your HVAC system.
Specifications:
- Part Number: 25W57
- Manufacturer Part Number: 100035-04
- Type: Ignition Wire
- Length: 50 inches
- Compatibility: Selected Lennox gas furnaces and HVAC units
Upgrade your ignition system with confidence.
The Lennox 25W57 Wire-Ignition 50 is available now at Beenimax.com — your trusted source for genuine HVAC replacement parts.

