OEM Lennox Gas Valve — 17H19

The genuine OEM Lennox 17H19 gas valve manages the flow of fuel to your furnace burners, opening and closing in response to the ignition control to deliver safe, accurately metered gas on every heat cycle. Engineered to Lennox factory tolerances, it is matched to your furnace's manifold pressure and gas type for clean combustion and rated performance.

A worn or defective gas valve is a leading cause of heating failures. Watch for symptoms such as the igniter glowing or the pilot lighting while the main burners never fire, delayed ignition, a valve that clicks but does not release gas, short cycling, or a complete loss of heat. Because this component directly controls fuel delivery, prompt replacement is essential for safe furnace operation.

Using an OEM Lennox 17H19 is critical because gas valves are safety-certified parts precisely matched to the furnace control board, orifice size, and fuel type. Aftermarket alternatives may not meet the required specifications and can compromise combustion safety. This direct factory replacement guarantees correct fit, listed compliance, and reliable long-term service for your Lennox equipment. In stock and ships same day before 3PM CST.