{"product_id":"oem-goodman-12-pin-wiring-harness-for-amh80903bxaa-0259f00018","title":"OEM Goodman 12-Pin Wiring Harness for AMH80903BXAA — 0259F00018","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 0259F00018 12-Pin Wiring Harness\u003c\/strong\u003e is the genuine OEM connector assembly for \u003cstrong\u003eAMH80903BXAA\u003c\/strong\u003e 80% AFUE furnaces. This harness carries low-voltage signals between the integrated furnace control board and the furnace's switches, sensors, and motor circuits. Melted, brittle, or corroded connectors cause intermittent lockouts and hard-to-trace no-heat faults; a fresh harness with keyed, pre-terminated plugs eliminates those failure points and makes board swaps quick and error-free.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: 0259F00018\u003c\/li\u003e\n\u003cli\u003eComponent: 12-pin low-voltage wiring harness\u003c\/li\u003e\n\u003cli\u003eFits: Goodman \u0026amp; Amana AMH80903BXAA furnaces\u003c\/li\u003e\n\u003cli\u003eConnector: 12-position keyed plug\u003c\/li\u003e\n\u003cli\u003eWire: Color-coded, factory-crimped terminals\u003c\/li\u003e\n\u003cli\u003eEquipment: 80% AFUE gas furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM\u003c\/strong\u003e harness matches factory pin-out, wire gauge, and connector keying exactly, so it seats into the control board without rewiring. A \u003cstrong\u003eGeneric\u003c\/strong\u003e universal harness can work but often requires re-pinning terminals to the correct positions — fine for experienced techs, not ideal for a fast repair.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (2\/5).\u003c\/strong\u003e Kill power at the disconnect, photograph the existing connections, then unplug the old harness and route the new one along the same path. Because it is keyed, the 12-pin plug only seats one way. Verify each branch lands on its original component. Typical time: 20–30 minutes.\u003c\/p\u003e\u003cp\u003eConfirm all spade terminals are fully seated and strain-relieved before restoring power.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057629643123,"sku":"GOODMAN-5726","price":23.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-12-pin-wiring-harness-for-amh80903bxaa-0259f00018","provider":"National HVAC Parts","version":"1.0","type":"link"}