{"product_id":"oem-goodman-12-pin-wiring-harness-for-amh80903bnab-furnace-0259f00018","title":"OEM Goodman 12-Pin Wiring Harness for AMH80903BNAB Furnace — 0259F00018","description":"\u003ch2\u003eGoodman 0259F00018 12-Pin Wiring Harness\u003c\/h2\u003e\u003cp\u003eThe genuine Goodman \u003cstrong\u003e0259F00018\u003c\/strong\u003e 12-pin wiring harness is a direct-fit replacement for the \u003cstrong\u003eAMH80903BNAB\u003c\/strong\u003e gas furnace. This harness ties the integrated control board to the furnace's key components through a single keyed 12-pin plug. Intermittent operation, error codes that come and go, or a melted\/discolored connector at the board are classic signs the original harness has overheated or corroded and needs replacing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 0259F00018\u003c\/li\u003e\n\u003cli\u003eType: Main low-voltage\/component wiring harness\u003c\/li\u003e\n\u003cli\u003eConnector: Keyed 12-pin plug\u003c\/li\u003e\n\u003cli\u003eFunction: Links control board to furnace components\u003c\/li\u003e\n\u003cli\u003eFits: Amana\/Goodman AMH80903BNAB and compatible furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM\u003c\/strong\u003e harness uses factory pin-out, wire gauge, and connector keying so it plugs in with zero rewiring or guesswork. A \u003cstrong\u003eGeneric\u003c\/strong\u003e universal harness can work but often needs pin re-terminating; for a 12-pin control harness we strongly recommend OEM to avoid miswiring. Both restore clean, reliable connections.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2 of 5)\u003c\/strong\u003e — Mostly unplug-and-replug, but route wires exactly as the original to keep them clear of hot and moving parts. Photograph the old layout, cut power first, and confirm the keyed plug is fully seated. About 15–20 minutes.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057628660083,"sku":"GOODMAN-5703","price":23.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-12-pin-wiring-harness-for-amh80903bnab-furnace-0259f00018","provider":"National HVAC Parts","version":"1.0","type":"link"}