Weil-McLain 640000109 Ignitor 155C Boiler
7 Available At All US Supply Locations

Maintain Peak Boiler Performance – Weil-McLain Ignitor Assembly Kit-S for T1 & T2 Wall Mount Models
The Weil-McLain Ignitor Assembly Kit-S is a critical replacement component designed to keep T1 and T2 wall-mounted boilers operating reliably. Engineered to withstand high-temperature environments and provide consistent ignition, this kit ensures dependable performance and reduces the risk of downtime in both residential and light commercial heating applications.
Key Advantages
- Consistent Ignition: Delivers stable boiler starts, minimizing nuisance lockouts and ensuring efficient combustion.
- Durable Materials: Manufactured from high-temperature resistant alloys and ceramics to handle demanding operating conditions.
- System Compatibility: Specifically built for Weil-McLain T1 and T2 wall-mount units, ensuring precise fit and function.
- Improved Safety: Designed to meet stringent safety requirements, reducing the chance of ignition failure or overheating.
- Professional-Grade Reliability: Built to the same standards as Weil-McLain OEM components for long service life.
Technical Specifications
- Model: Ignitor Assembly Kit-S
- Application: Weil-McLain T1 and T2 wall-mounted boilers
- Material: High-temperature ceramics and metal alloys
- Function: Ignition assembly for boiler startup
- Installation: Professional installation strongly recommended
Installation Guidance
While this ignitor kit is designed for straightforward replacement, Weil-McLain recommends installation by a licensed HVAC technician. Proper alignment and electrical connection are essential for safe and efficient performance. Incorrect installation can result in ignition issues, system faults, or reduced component life.
Professional and DIY Considerations
For Contractors: This kit is a direct-fit OEM solution that saves installation time and prevents compatibility concerns. Its rugged design supports long-term reliability, reducing callbacks and ensuring client satisfaction.
For Skilled DIYers: Replacement may be achievable with proper tools and care, but due to the critical role of ignition systems in boiler safety, professional handling is highly advised.
Summary
The Weil-McLain Ignitor Assembly Kit-S is engineered to provide safe, efficient, and reliable ignition performance in T1 and T2 wall-mounted boilers. With OEM-quality construction and precise compatibility, it remains the preferred choice for maintaining heating system integrity and efficiency.
Specifications
| Weight | 1.880000 |
|---|---|
| Length (inches) | 8.88 |
| Width (inches) | 8.88 |
| Height (inches) | 8.88 |
| Item Type | Boiler Parts |
| Brand | Weil McLain |
| Manufacturer | Weil McLain |
| MPN | 640000109 |
| Sub Type | Ignitor 155C Boiler |
| Item Returns | This item can be returned |
