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Engineered as an authentic Aaon replacement part
Enhanced Reliability: The analog dial functions independently of the boiler’s electronic control module
Durable Construction: Heavy-duty materials withstand extreme vibration and pressure fluctuations within the liquid line
The "LLL" designation indicates the maximum shank extension length within the 100XL series
Weil McLain 511-330-186 Pilot Assembly Els PW 17895 Engineered as an authentic AaonThe Weil McLain 511 330 186 Natural Gas Pilot Assembly is a critical OEM replacement component designed for constant burning, thermally supervised standing pilot systems. Engineered for high temperature durability, this assembly ensures consistent ignition and flame rectification across several flagship boiler lines. It is a drop in HVAC replacement part for Weil McLain CG, EG, EGH, LGB, MGB, and PFG series boilers. This assembly includes the pilot