{"product_id":"oem-goodman-12-pin-wiring-harness-for-gmth045-3a-0259f00007p","title":"OEM Goodman 12-Pin Wiring Harness for GMTH045-3A — 0259F00007P","description":"\u003cp\u003eThe Goodman \u003cstrong\u003e0259F00007P\u003c\/strong\u003e is a genuine \u003cstrong\u003e12-pin wiring harness\u003c\/strong\u003e for the \u003cstrong\u003eGMTH045-3A\u003c\/strong\u003e furnace and compatible Goodman\/Amana models. This factory harness carries low-voltage and control signals between the integrated furnace control board and key components. Melted connectors, chafed insulation, or corroded pins can cause intermittent faults, blower or ignition problems, and hard-to-diagnose error codes — a fresh OEM harness restores clean, reliable connections.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart number: 0259F00007P\u003c\/li\u003e\n\u003cli\u003eType: Wiring harness \/ connector assembly\u003c\/li\u003e\n\u003cli\u003eConnector: 12-pin plug\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMTH045-3A furnace control circuit\u003c\/li\u003e\n\u003cli\u003eWiring: Color-coded, factory-terminated leads\u003c\/li\u003e\n\u003cli\u003eDesign: Plug-and-play OEM replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOEM Goodman harnesses use the correct pin-out, wire gauge, and connector keying so the plug seats correctly and signals map exactly to the control board. Generic or hand-built harnesses risk mis-pinned connections and poor crimps that lead to shorts or component damage. For a wiring assembly, matching the factory spec is essential.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty: Advanced\u003c\/h3\u003e\u003cp\u003eDisconnect power before servicing. Photograph existing connections, unplug the old harness, and route the new harness along the same path, seating each connector fully. Because a mis-connection can damage the board or motor, this repair is best performed by an HVAC technician.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eCompatible with GMTH045-3A. Verify the 12-pin connector before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058165432691,"sku":"GOODMAN-12524","price":29.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-12-pin-wiring-harness-for-gmth045-3a-0259f00007p","provider":"National HVAC Parts","version":"1.0","type":"link"}