{"product_id":"oem-goodman-hot-surface-ignitor-silicon-nitride-for-wfd18045s3axcb-20165703s","title":"OEM Goodman Hot Surface Ignitor (Silicon Nitride) for WFD18045S3AXCB — 20165703S","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e20165703S\u003c\/strong\u003e is the OEM hot surface ignitor (HSI) for the \u003cstrong\u003eWFD18045S3AXCB\u003c\/strong\u003e furnace and compatible Goodman\/Amana gas furnaces. On each heat call the control board energizes this ignitor, which glows white-hot to light the main burners — making it one of the most common wear items in the entire furnace.\u003c\/p\u003e\u003cp\u003eThis ignitor uses a rugged silicon-nitride element that resists the thermal shock and cracking that plague older carbide-style igniters, delivering longer service life and more reliable cold-morning starts. A no-heat, no-glow condition is the classic symptom of a failed HSI.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Hot surface ignitor (HSI)\u003c\/li\u003e\n\u003cli\u003eElement: Silicon nitride, high thermal-shock resistance\u003c\/li\u003e\n\u003cli\u003eFunction: Direct burner ignition on heat call\u003c\/li\u003e\n\u003cli\u003eFits: Goodman WFD18045S3AXCB and compatible furnace models\u003c\/li\u003e\n\u003cli\u003ePart number: 20165703S\u003c\/li\u003e\n\u003cli\u003eIncludes: Ignitor with factory connector and mounting bracket\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM 20165703S\u003c\/strong\u003e arrives with the correct connector, bracket, and element resistance so it plugs in without adapters. Universal igniter kits require harness splicing and often use less durable elements. For dependable ignition and easy installation, OEM wins.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3\/5).\u003c\/strong\u003e Involves accessing the burner compartment, unplugging the connector, and unscrewing the bracket. Handle the fragile element by the bracket only. About 30 minutes; power off before servicing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058214453619,"sku":"GOODMAN-13818","price":47.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-hot-surface-ignitor-silicon-nitride-for-wfd18045s3axcb-20165703s","provider":"National HVAC Parts","version":"1.0","type":"link"}