{"product_id":"oem-goodman-12-pin-wiring-harness-for-gmth090-5-0259f00007p","title":"OEM Goodman 12-Pin Wiring Harness for GMTH090-5 — 0259F00007P","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 0259F00007P 12-Pin Wiring Harness\u003c\/strong\u003e is a genuine OEM connector assembly for the \u003cstrong\u003eGMTH090-5\u003c\/strong\u003e gas furnace. This pre-terminated harness links the control board to the furnace's motors, sensors, and safety switches through a keyed 12-pin plug. Damaged, melted, or corroded harness pins cause intermittent faults, no-heat calls, and blower or ignition issues that are easily mistaken for a failed control board.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart number: 0259F00007P\u003c\/li\u003e\n\u003cli\u003eConnector: 12-pin keyed plug\u003c\/li\u003e\n\u003cli\u003eType: Pre-terminated OEM wiring harness\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (OEM)\u003c\/li\u003e\n\u003cli\u003eApplication: GMTH090-5 gas furnace\u003c\/li\u003e\n\u003cli\u003eIncludes: Factory-crimped leads and connector housing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eBecause this harness carries both low-voltage control signals and line-voltage loads, pin spacing, wire gauge, and connector keying must match exactly. A generic or hand-spliced harness risks loose connections, arcing, and nuisance faults. The genuine Goodman 0259F00007P plugs straight in with factory-grade crimps and correct polarity.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty: Moderate.\u003c\/strong\u003e Disconnect furnace power, unplug the old harness from the control board and each component, then route and reconnect the new harness following the original path — the keyed connector prevents backwards insertion. Label any secondary connections before removal. Plan on 30–45 minutes; if you're not comfortable tracing furnace wiring, have a licensed HVAC technician handle it.\u003c\/p\u003e\u003cp\u003eExact-fit replacement that restores reliable furnace communication.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058166546803,"sku":"GOODMAN-12564","price":44.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-12-pin-wiring-harness-for-gmth090-5-0259f00007p","provider":"National HVAC Parts","version":"1.0","type":"link"}