Weil McLain 511-330-219 Burner Assembly

The Weil McLain 511-330-219 Burner Assembly is a critical OEM replacement component designed for LP gas pilot configurations in Weil McLain CGi and LGB series boilers. This unit serves as a specialized liquid propane pilot burner assembly, engineered to provide high-precision ignition and consistent flame sensing for intermittent pilot systems. Built to withstand the thermal stresses of high-temperature combustion environments, the 511-330-219 features durable brass threads and 1/2-inch barbed outlets, ensuring a secure, leak-free connection. Technicians favor this Weil McLain boiler part for its exact tolerances, which eliminate the troubleshooting variables often associated with universal aftermarket pilots. By maintaining the correct LP flame pattern, this assembly optimizes fuel combustion and prevents nuisance lockouts in residential and light commercial hydronic systems. Whether you are performing a seasonal tune-up or a targeted pilot burner replacement, utilizing this genuine HVAC burner assembly ensures full compatibility with factory manifolds and wiring harnesses.

• System Compatibility: Direct OEM fit for Weil McLain CGi boilers and LGB models 504 through 512, ensuring seamless integration with existing gas valves.
• Optimized Ignition: Designed specifically for LP gas applications to provide reliable spark-to-pilot ignition even in low-pressure conditions.
• Industrial-Grade Build: Features a robust design with high-heat resistant alloys and 1/2-inch barbed connections to prevent premature oxidation or mechanical failure.
• Precision Detection: Integrated flame sensing capability communicates clearly with the ignition module to ensure safe operation.

Is the 511-330-219 compatible with natural gas systems?
No, this specific assembly is calibrated and machined for LP (Liquid Propane) gas. For natural gas applications, a different orifice and assembly configuration are required to ensure safe combustion.

Does this assembly include the needle valve and mounting hardware?
Yes, this LP Gas Pilot Burner Assembly typically arrives as a complete kit, including the essential mounting nut and pilot burner components for a direct swap-out.

What are the primary indicators that this burner needs replacement?
Technical indicators include a weak or lifting pilot flame, persistent carbon buildup (sooting) on the pilot hood, or a failure to prove flame to the ignition control board despite a visible spark.

This item is not eligible for free shipping.

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.