OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
This OEM hot surface igniter (part number 1009524) is the ignition component for the Tempstar TNE125J20B1 gas furnace. It is a durable silicon-nitride "SmartLite"-style igniter/sensor that electrically heats to roughly 2,500°F to light the burners on each call for heat. Unlike fragile silicon-carbide igniters, the silicon-nitride element resists cracking from thermal cycling and contamination, giving longer service life. When this igniter fails you will typically see the furnace try to ignite, fail, and lock out — producing a no-heat condition, repeated clicking, or a control board flashing an ignition-failure fault code.
| Spec | Value |
|---|---|
| Part Number | 1009524 |
| Description | Igniter / Sensor HSP SK |
| Type | Hot Surface Igniter (Silicon Nitride) |
| Brand | Tempstar (ICP / Heil) |
| Fits Model | TNE125J20B1 |
| Fit | OEM Replacement |
Engineered as a direct OEM replacement for the Tempstar TNE125J20B1 furnace and shared across ICP / Heil / Comfortmaker / Tempstar platforms that use the 1009524 igniter/sensor assembly. Always confirm your existing part number before ordering.
Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.