{"product_id":"oem-goodman-wiring-harness-for-gmt090-3a-b1225020","title":"OEM Goodman Wiring Harness for GMT090-3A — B1225020","description":"\u003ch2\u003eGoodman B1225020 Wiring Harness\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003eB1225020\u003c\/strong\u003e is a genuine OEM wiring harness for \u003cstrong\u003eGMT090-3A\u003c\/strong\u003e gas furnaces. The harness carries control and power signals between the furnace board, blower, limits, and other components with the correct gauge wire and factory-terminated connectors. Melted insulation, corroded terminals, or brittle, chafed wires cause intermittent faults, no-heat calls, and safety concerns. This exact-fit replacement restores clean, reliable connections without cutting or splicing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B1225020 (OEM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Pre-terminated wiring harness \/ connector assembly\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GMT090-3A gas furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnectors:\u003c\/strong\u003e Factory keyed plug-and-play terminals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e Furnace control \/ blower wiring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM B1225020 uses the correct wire gauge, connector keying, and lead lengths so it plugs directly into your GMT090-3A. Generic wire kits require cutting, crimping, and matching pinouts by hand — introducing risk of miswiring and loose terminals. For a safe, code-clean repair, the OEM harness is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate\u003c\/strong\u003e — mostly a plug-for-plug swap, but connectors should be photographed and transferred one at a time to avoid mix-ups. Plan 20–40 minutes. Always disconnect power before disconnecting any connector.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058158813555,"sku":"GOODMAN-12358","price":9.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-wiring-harness-for-gmt090-3a-b1225020","provider":"National HVAC Parts","version":"1.0","type":"link"}