The 100412 is the approved replacement for the 054981

This open-circuit board configuration utilizes 10K Ohm sensitivity and inverse acting logic

For technicians servicing Reznor waste oil furnaces

Perfect Fitment: Eliminates the risk of thread leaks or seating issues common with universal parts

The Parker D200P3 is designed for continuous duty (100% duty cycle) when operated within its specified voltage and temperature parameters

Lochinvar & A.O. Smith 100109827 Ignitor Pilot 340793-762 The 100412 is the approvedThe Lochinvar & A. O. Smith 100109827 Ignitor Pilot is a critical replacement component engineered for high performance gas fired water heaters and residential boilers. Designed as a professional grade pilot igniter kit, this assembly facilitates precise spark generation to initiate combustion efficiently while maintaining system safety. It serves as a direct replacement for AO Smith 100109827 and Lochinvar 100109827, as well as the legacy part number