{"product_id":"oem-goodman-hot-surface-ignitor-for-wfm18070s4bxcb-20165703s","title":"OEM Goodman Hot Surface Ignitor for WFM18070S4BXCB — 20165703S","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 20165703S Hot Surface Ignitor\u003c\/strong\u003e is a genuine OEM replacement igniter for the \u003cstrong\u003eWFM18070S4BXCB\u003c\/strong\u003e furnace and compatible Goodman and Amana gas furnaces. The hot surface ignitor (HSI) heats to a glowing temperature on each call for heat, lighting the main burners without a standing pilot. A cracked, worn, or no-glow ignitor is one of the most common causes of a furnace that will not fire.\u003c\/p\u003e\u003cp\u003eThis OEM ignitor is built to the correct resistance and physical mounting spec for your furnace, ensuring proper glow temperature, reliable ignition sequencing, and full compatibility with the furnace control board. Installing the exact factory-matched part avoids the short cycling, delayed ignition, and premature failures often seen with mismatched universal kits.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Hot surface ignitor (HSI)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e 20165703S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e WFM18070S4BXCB (verify against your unit)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Direct-ignition of main burners on call for heat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand Compatibility:\u003c\/strong\u003e Goodman, Amana\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003egenuine OEM ignitor\u003c\/strong\u003e matches the exact element type and connector for a true plug-and-play fit. Universal generic ignitors require adapter harnesses and bracket modification and may run at the wrong glow temperature, shortening service life. For dependable cold-weather startups, OEM is the safer choice.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate.\u003c\/strong\u003e Cut power, remove the burner-compartment panel, unplug the old ignitor, and unscrew it from its bracket — handle the new element by the ceramic base only, never the fragile silicon-nitride tip. Reconnect and mount. A 15–30 minute job best completed by a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058225037683,"sku":"GOODMAN-14081","price":47.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-hot-surface-ignitor-for-wfm18070s4bxcb-20165703s","provider":"National HVAC Parts","version":"1.0","type":"link"}