{"product_id":"oem-lennox-spark-wire-harness-43k69","title":"OEM Lennox Spark Wire Harness — 43K69","description":"\u003cp\u003eThe genuine OEM Lennox \u003cstrong\u003e43K69\u003c\/strong\u003e spark wire harness carries the high-voltage spark from the ignition control to the igniter\/spark electrode in your Lennox furnace, delivering the reliable arc needed to light the burners on every heating call. Built to factory specifications, it uses the correct high-temperature insulation, connectors, and length for a precise fit in your Lennox system.\u003c\/p\u003e\u003cp\u003eA failing or damaged spark harness often shows up as intermittent or no ignition, a furnace that clicks repeatedly but won't light, delayed ignition with a small rollout, or a system that locks out after several failed trials. Cracked insulation, corroded terminals, or heat-embrittled wire can all interrupt the spark path and leave you without heat.\u003c\/p\u003e\u003cp\u003eInstalling the OEM \u003cstrong\u003e43K69\u003c\/strong\u003e is important because Lennox ignition circuits depend on a properly insulated, correctly routed harness to prevent voltage leakage and misfires. A factory harness maintains safe, consistent ignition and protects the ignition control board — restoring dependable startup for your Lennox furnace.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081106145651,"sku":"LNX-43K69","price":19.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-igniter-silicon-carbide-LNX-43K69.jpg?v=1783763650","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-spark-wire-harness-43k69","provider":"National HVAC Parts","version":"1.0","type":"link"}