Replacing the gasket during annual inspections or whenever the head is removed prevents dangerous leaks and ensures the low water cut-off maintains precise calibration

but secure connections to the furnace control circuit are mandatory

Direct OEM Fit: Eliminates the need for field modifications or bracket adjustments during furnace ignitor replacement

it is fully compatible with modern refrigerants

5 meters (4

Resideo Q3451B1004/B Pilot Assembly Replacing the gasket during annualThe Resideo Q3451B1004 B Natural Gas Pilot Assembly is a high performance intermittent pilot burner designed for precise flame ignition and reliable sensing in S8600 series ignition systems. Engineering grade construction features a single rod combination spark igniter and flame sensor, which streamlines the HVAC combustion setup by utilizing one component for both sparking and monitoring. This assembly comes factory equipped with a BCR 18 orifice (0.