The Rheem-Ruud AP14698B-1 Pilot Assembly is a critical OEM component designed specifically for Natural Gas (NG) water heaters and atmospheric furnace applications

it likely corresponds to this 4-12" w

Optimized LP Orifice: Specifically calibrated for liquid propane to maintain consistent pilot flame performance and fuel efficiency

mounting bracket

and excessive vibration can cause the seal to compress

Lochinvar & A.O. Smith 100187919 Burner Assembly 321894-709 The Rheem-Ruud AP14698B-1 Pilot AssemblyThe Lochinvar & A. O. Smith 100187919 Burner Assembly is a high specification service component engineered for 16 inch natural gas combustion chambers. This OEM natural gas burner replacement is designed to restore precise thermal output for commercial and residential boilers and water heaters. As a direct replacement for Lochinvar part 100187919 and compatible A. O. Smith water heater burner systems, it features a precision drilled #37 orifice to