{"product_id":"oem-goodman-wiring-harness-for-gmt115-5-furnace-b1225020","title":"OEM Goodman Wiring Harness for GMT115-5 Furnace — B1225020","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1225020 Wiring Harness\u003c\/strong\u003e is a genuine OEM replacement assembly engineered for the Goodman \u003cstrong\u003eGMT115-5\u003c\/strong\u003e gas furnace. This factory harness delivers the correct gauge, length, and connector terminations to restore reliable control and blower circuit connections without splicing or rewiring.\u003c\/p\u003e\u003cp\u003eA cracked, brittle, or heat-damaged harness is a common cause of intermittent furnace faults, nuisance lockouts, and blower drop-outs. Replacing it with the exact OEM assembly ensures every plug lands where the factory intended.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B1225020\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Wiring Harness \/ Wire Loom Assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman (Genuine OEM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e GMT115-5 gas furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectors:\u003c\/strong\u003e Factory keyed plugs, pre-terminated\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOur \u003cstrong\u003eOEM Goodman\u003c\/strong\u003e harness uses factory-spec connectors that seat cleanly into the control board and blower without adapters. Generic or hand-spliced substitutes often introduce loose terminals and resistance faults that trigger error codes. For a furnace's low-voltage and line-voltage runs, the exact OEM harness is the safe choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate\u003c\/strong\u003e — plug-and-play for a technician; roughly 20–30 minutes. Always disconnect power at the breaker before servicing. If you are not comfortable working around line-voltage furnace wiring, hire a licensed HVAC professional.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058160550259,"sku":"GOODMAN-12420","price":9.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-wiring-harness-for-gmt115-5-furnace-b1225020","provider":"National HVAC Parts","version":"1.0","type":"link"}