Weil McLain 510-811-222 Pilot Assembly Kit

The Weil McLain 510-811-222 Pilot Assembly Kit is a critical OEM component designed specifically for maintaining combustion stability in Weil McLain CGi series boilers. As a dedicated liquid propane (LP) pilot assembly, this kit resolves common boiler ignition failure issues caused by carbon buildup or orifice degradation. The assembly includes a precision-calibrated LP pilot orifice, a rugged burner head, and a pre-aligned pilot bracket to ensure proper flame rectification and consistent main burner light-off. For technicians servicing hydronic heating systems, using this genuine Weil McLain part is essential for meeting factory manifold pressure specifications and avoiding the erratic sensor readings often associated with aftermarket universal kits. By replacing the entire pilot burner assembly, you eliminate the risk of brittle wiring or cracked ceramic insulators compromising the heating system performance. This kit provides the exact tolerances required for the CGi boiler pilot, ensuring a clean, stable blue flame that integrates seamlessly with your existing ignition control module.

Key Benefits

• Optimized for Propane: Engineering-specific LP pilot orifice ensures the correct air-to-fuel ratio for high-altitude or standard propane applications.
• Precision Fitment: Developed exclusively for Weil McLain CGi boilers, eliminating field modifications and reducing labor time.
• Stabilized Flame Signal: The integrated pilot bracket maintains perfect alignment between the pilot flame and the flame sensor or thermocouple.
• Rugged OEM Construction: Designed to withstand the high-temperature environment of the combustion chamber without premature oxidation.

Common Questions

Which boiler models are compatible with the 510-811-222?
This kit is engineered precisely for the Weil McLain CGi series gas-fired boilers configured for use with liquid propane.

What is included in this pilot assembly kit?
The 510-811-222 includes the burner, high-tolerance propane orifice, and the mounting bracket for a complete drop-in replacement.

Can I use this kit for a natural gas boiler?
No, this assembly is specifically jetted and calibrated for Propane (LP). Installing this on a natural gas unit will result in improper combustion and potentially hazardous operation.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.