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This is a genuine OEM hot surface igniter (HSI), part number 1172533, for the ICP Tempstar Heil X9MPD075F12B3 gas furnace. On a call for heat, the control board energizes the igniter, which glows red-hot to ignite the gas at the burners. The silicon-carbide/silicon-nitride element is brittle and degrades with each heating cycle, making it one of the most common furnace failure points. A cracked or worn igniter causes no-heat calls, repeated ignition lockouts, or a furnace that cycles the inducer and gas valve but never lights. This igniter works alongside the matching flame sensor (1172543) and snap-mount gas valve (1172541, VR8205S) in this model's ignition system.
| Spec | Value |
|---|---|
| Part Number | 1172533 |
| Type | Hot Surface Igniter (HSI) |
| Brand | ICP (Tempstar / Heil) |
| Related Parts | 1172543 Flame Sensor, 1172541 Gas Valve (VR8205S) |
| System | HSI Ignition |
| Fit | OEM Replacement |
Engineered for the ICP Tempstar Heil X9MPD075F12B3 gas furnace. The 1172533 HSI is shared across many ICP-family (Tempstar, Heil, Comfortmaker, Arcoaire) furnace platforms using the same ignition module. Verify the igniter plug and mounting bracket match your existing part before ordering.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.