201657-03S Furnace Hot Surface Ignitor | Fits GDT GMN GMP Series

201657-03S Furnace Hot Surface Ignitor Replacement Part

Keep your furnace running efficiently with this high-quality hot surface ignitor, a direct replacement for part numbers 20165703S, 20165703, 201657-03, and many more. Built with precision materials and tested through multiple quality-control processes before leaving the factory, this ignitor is designed to install easily and perform reliably — no special tools required.

Made in Mainland China.

Key Features

• Premium Construction: Features a nitride heating element, stainless steel bright-surface bracket, unglazed alumina polished ceramic insulator, and a silicone braided wire cable — all assembled using the latest production processes.
• Wide Compatibility: Works with a broad range of furnace models including GDT045-3, GDT045-3A, GDT070-3, GDT070-3A, GDT090-4, GDT090-4A, GDT115-5, GDT115-5A, GMN060-3, GMN080-4, GMN100-4, GMN120-5, GMNT040-3, GMNT060-3, GMNT080-4, GMNT100-4, GMNT120-5, GMP050-3, GMP075-3, GMP075-4, GMP100-3, GMP100-4, GMP100-5, GMP125-4, GMP125-5, and GMP150-5.
• Multiple Cross-Reference Part Numbers: Compatible with 20165703S, 20165703, 201657-03, 0230K00001, 601TB-1142, IGN02004, B1401015S, B1401018S, AP4514330, 0130F00008S, L41-802, 20165702, 20165702S, 594468, AP4420263, 201657035, 41602, 767A-378.
• Universal Mounting Bracket: The universal bracket design accommodates multiple mounting configurations for a perfect, hassle-free fit.
• Factory Tested: Each ignitor passes through several quality-assurance processes before shipment to ensure consistent, reliable performance.
• Easy DIY Installation: No special tools needed — simply disconnect power before servicing and swap in the new ignitor.

Specifications

• Part Number: 201657-03S
• Material: Stainless steel bracket, nitride heating element, alumina ceramic insulator, silicone braided wire
• Compatibility: GDT, GMN, GMNT, GMP series furnaces (see full model list above)
• Country of Origin: Made in Mainland China

Package Contents

• 1 × 201657-03S Furnace Hot Surface Ignitor

Safety Notice

⚠️ Always disconnect your appliance from the power supply before performing any service or replacement. For guidance on safe furnace maintenance, refer to the U.S. Consumer Product Safety Commission (CPSC) Heating Safety Resources.

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Frequently Asked Questions

Q: What furnace models is the 201657-03S hot surface ignitor compatible with?

A: This ignitor is compatible with a wide range of furnace models including GDT045-3, GDT045-3A, GDT070-3, GDT070-3A, GDT090-4, GDT090-4A, GDT115-5, GDT115-5A, GMN060-3, GMN080-4, GMN100-4, GMN120-5, GMNT040-3, GMNT060-3, GMNT080-4, GMNT100-4, GMNT120-5, GMP050-3, GMP075-3, GMP075-4, GMP100-3, GMP100-4, GMP100-5, GMP125-4, GMP125-5, and GMP150-5.

Q: What cross-reference part numbers does this ignitor replace?

A: This replacement ignitor is compatible with the following part numbers: 20165703S, 20165703, 201657-03, 0230K00001, 601TB-1142, IGN02004, B1401015S, B1401018S, AP4514330, 0130F00008S, L41-802, 20165702, 20165702S, 594468, AP4420263, 201657035, 41602, and 767A-378.

Q: Do I need special tools to install the 201657-03S ignitor?

A: No special tools are required for installation. The universal mounting bracket is designed for a straightforward fit across multiple configurations. Always turn off and disconnect your furnace from the power supply before beginning any installation or service work.

Q: What is the ignitor made of?

A: The 201657-03S ignitor is constructed with a nitride heating element, a stainless steel bright-surface bracket, an unglazed alumina polished ceramic insulator, and a silicone braided wire cable — all designed for durability and reliable ignition performance.