{"product_id":"201657-03s-furnace-hot-surface-ignitor-replacement-gdt-gmn-gmp","title":"201657-03S Furnace Hot Surface Ignitor | Fits GDT GMN GMP Series","description":"\n\u003ch2\u003e201657-03S Furnace Hot Surface Ignitor Replacement Part\u003c\/h2\u003e\n\u003cp\u003eKeep 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.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium Construction:\u003c\/strong\u003e 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.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWide Compatibility:\u003c\/strong\u003e 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.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple Cross-Reference Part Numbers:\u003c\/strong\u003e Compatible with 20165703S, 20165703, 201657-03, 0230K00001, 601TB-1142, IGN02004, B1401015S, B1401018S, AP4514330, 0130F00008S, L41-802, 20165702, 20165702S, 594468, AP4420263, 201657035, 41602, 767A-378.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Mounting Bracket:\u003c\/strong\u003e The universal bracket design accommodates multiple mounting configurations for a perfect, hassle-free fit.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFactory Tested:\u003c\/strong\u003e Each ignitor passes through several quality-assurance processes before shipment to ensure consistent, reliable performance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEasy DIY Installation:\u003c\/strong\u003e No special tools needed — simply disconnect power before servicing and swap in the new ignitor.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 201657-03S\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Stainless steel bracket, nitride heating element, alumina ceramic insulator, silicone braided wire\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e GDT, GMN, GMNT, GMP series furnaces (see full model list above)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Made in Mainland China\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 201657-03S Furnace Hot Surface Ignitor\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSafety Notice\u003c\/h3\u003e\n\u003cp\u003e⚠️ 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.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Also Need\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-channel-relay-module-dc-3-3v-24v-optocoupler-arduino\"\u003e1-Channel Relay Module DC 3.3V–24V Optocoupler for Arduino\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-inch-threaded-brass-ball-valve-water-gas-oil-flow-control\"\u003e1-Inch Threaded Brass Ball Valve – Water, Gas \u0026amp; Oil Flow Control\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What furnace models is the 201657-03S hot surface ignitor compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\u003ch4\u003eQ: What cross-reference part numbers does this ignitor replace?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\u003ch4\u003eQ: Do I need special tools to install the 201657-03S ignitor?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the ignitor made of?\u003c\/h4\u003e\n\u003cp\u003eA: 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.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What furnace models is the 201657-03S hot surface ignitor compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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.\"}}, {\"@type\": \"Question\", \"name\": \"What cross-reference part numbers does this ignitor replace?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"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.\"}}, {\"@type\": \"Question\", \"name\": \"Do I need special tools to install the 201657-03S ignitor?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No special tools are required for installation. 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