installing a fresh 30046335-859 during every disassembly is standard practice to secure the 8100 Series' performance

75" diameter wheel features a 5/16" bore and is designed for clockwise (CW) rotation

it is not intended for direct switching of high-amperage motor loads

With a standard 1/2-inch bore

Lennox 49K85 Ignition Pilot Assembly 30067439-890 installing a fresh 30046335-859 duringMaintaining reliable ignition in Lennox gas furnaces requires precision components like the Lennox 49K85 Spark Ignition Pilot Assembly. This OEM spark igniter pilot is a direct fit replacement engineered for intermittent pilot ignition systems, providing a consistent high voltage spark to initiate the burner cycle. Transitioning from a failed assembly to this technical grade unit restores system safety by preventing unburnt gas accumulation. The 49K85