{"product_id":"oem-goodman-12-pin-wiring-harness-for-gmt140-5a-0259f00007p","title":"OEM Goodman 12-Pin Wiring Harness for GMT140-5A — 0259F00007P","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 0259F00007P Wiring Harness\u003c\/strong\u003e is a genuine OEM \u003cstrong\u003e12-pin\u003c\/strong\u003e pre-terminated connector assembly built for the \u003cstrong\u003eGoodman GMT140-5A\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. This harness routes low- and line-voltage signals between the integrated furnace control board and components such as the blower, inducer, and gas valve. A cracked connector, melted pin, or rodent-damaged wire can cause intermittent faults, no-heat calls, or blower failures — this factory harness restores clean, code-correct connections.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConnector: 12-pin\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: 0259F00007P\u003c\/li\u003e\n\u003cli\u003eType: Pre-terminated wiring harness assembly\u003c\/li\u003e\n\u003cli\u003eCompatible Model: Goodman GMT140-5A furnace\u003c\/li\u003e\n\u003cli\u003eApplication: Control board \/ component interconnect\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (Amana compatible)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM 0259F00007P\u003c\/strong\u003e arrives with the correct pin-out, gauge, and connector keying so it seats the first time. There is effectively no reliable generic substitute for a keyed 12-pin furnace harness — mismatched pin-outs risk shorts and board damage. We recommend genuine OEM here every time.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3 of 5).\u003c\/strong\u003e Plug-and-play at the connector, but requires care to trace routing, label existing plugs, and confirm each connection. Photograph the original layout before removal. \u003cem\u003eDisconnect power first; if you're not comfortable with furnace wiring, use a licensed technician.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058164285811,"sku":"GOODMAN-12477","price":29.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-12-pin-wiring-harness-for-gmt140-5a-0259f00007p","provider":"National HVAC Parts","version":"1.0","type":"link"}