Description
Product Summary
The Supco S903758 Furnace Igniter - Exact Replacement is a professional-grade replacement part from Supco (Sealed Unit Parts Co.), a trusted name in HVAC/R and appliance parts since 1945. Supco® igniters offer an efficient , stronger, reliable hot surface Silicon Carbide design.
Hot surface igniters and flame sensors are the heart of modern gas furnace ignition. A cracked or weak igniter causes no-heat calls and lockouts, while a dirty or failing flame sensor causes the burners to shut down seconds after lighting. Match the igniter material (silicon carbide or silicon nitride), voltage, and mounting style to the original.
Key Features
- 18 gauge copper high temperature fiberglass insulated lead wires
- Exact replacement hot surface igniters
- Faster time to temperature response
- Lower power consumption
- Stronger more durable design
- Superior gas lighting ability
Specifications
| Brand | Supco |
|---|---|
| Part Number | S903758 |
| Part Type | Igniter / Flame Sensor |
| Lead Length | 9" |
| Minimum Temperature | 1800°F / 980°C @ 98 Volts |
| Maximum Temperature | 3100°F / 1705°C @ 132 Volts |
| Time to Temperature | <17 seconds @ 115 +/‐ 10 VAC |
| Resistance | 50 to 1100 Ohms |
| Steady State Current | 2.9 to 5.0 Amps Maximum @ 132 Volts |
| Igniter Material | Silicon Carbide |
Cross Reference
The Supco S903758 is a direct replacement for the following OEM and competitor part numbers. Always verify ratings and fit against the original part before installing.
| Replaces Part # | Manufacturer | Description |
|---|---|---|
| 903758 | Nordyne® | Igniter |
| 632363 | Nordyne® |
Ideal Applications
- Gas furnaces
- Boilers and gas appliances with hot surface ignition
What's Included
- (1) Supco S903758 Furnace Igniter - Exact Replacement
Safety: Always disconnect power and follow lockout/tagout procedures before servicing electrical components. Installation should be performed by a qualified technician.
