{"product_id":"oem-goodman-12-pin-wiring-harness-for-amh80903bnaa-furnace-0259f00018","title":"OEM Goodman 12-Pin Wiring Harness for AMH80903BNAA Furnace — 0259F00018","description":"\u003ch2\u003eGoodman 0259F00018 12-Pin Wiring Harness\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003e0259F00018\u003c\/strong\u003e is a genuine OEM 12-pin wiring harness engineered as a direct-fit replacement for the \u003cstrong\u003eAMH80903BNAA\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. This harness carries the low-voltage control and sensor signals between the integrated furnace control board and the blower, limit, and pressure-switch circuits. A damaged, chafed, or corroded harness is a common cause of intermittent no-heat calls, error codes, and blower faults — replacing it with the correct factory part restores clean, reliable connections.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart Number: 0259F00018\u003c\/li\u003e\n\u003cli\u003eConnector: 12-pin keyed plug\u003c\/li\u003e\n\u003cli\u003eApplication: 80% AFUE gas furnace control wiring\u003c\/li\u003e\n\u003cli\u003eFits: Goodman \/ Amana AMH80903BNAA and compatible models\u003c\/li\u003e\n\u003cli\u003eType: OEM factory replacement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM Goodman harness uses the exact pin layout, gauge, and keyed connector as the factory original, so it plugs in without splicing, adapters, or rewiring. Generic universal harnesses often require cutting and crimping, which introduces failure points and can void warranty coverage. For a control-critical circuit like this, the factory part is the safest choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1 of 5).\u003c\/strong\u003e Disconnect power, unplug the old harness at both ends, route the new harness the same way, and reconnect the keyed plugs. No special tools required. Always verify power is off at the breaker before servicing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057628332403,"sku":"GOODMAN-5690","price":23.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-12-pin-wiring-harness-for-amh80903bnaa-furnace-0259f00018","provider":"National HVAC Parts","version":"1.0","type":"link"}