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Industrial-Grade Piston: Stainless steel shaft prevents bending and maintains smooth linear motion control across the full 2-inch stroke
Built with a rugged snap-acting SPST switch and silver contacts
Utilizing ball bearings for reduced friction and a 0
providing overhead for demanding motor and heater applications
Lennox 12J99 Ignition Control 30067439-890 Industrial-Grade Piston: Stainless steel shaftThe Lennox 12J99 Ignition Control (Part Number 104278 01) is a critical OEM furnace control board designed for precise sequencing of the ignition process in 24 VAC residential heating systems. As a direct cross replacement for legacy components including Lennox 60M32, 12J9901, and the original 104278 01, this module manages the gas valve, ignitor, and flame sensing circuits to ensure safe combustion cycles. This electronic integrated ignition control