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The Goodman 0259F00007P 12-Pin Wiring Harness is a genuine OEM replacement for the Goodman GDS81155CXA gas furnace. This harness carries low-voltage control and sensor signals between the integrated furnace control board and downstream components, using a keyed 12-position connector to guarantee correct pin alignment. A damaged, melted, or corroded harness is a common cause of intermittent no-heat faults and erratic control-board behavior.
Because it is built to Goodman's factory pinout, this harness plugs directly into the existing connectors — no splicing, crimping, or re-pinning required. The color-coded conductors match the original wiring diagram for a straightforward one-to-one swap.
The OEM 0259F00007P arrives pre-terminated with the correct connector body, pin count, and wire gauge. Generic harnesses often require manual pinning and lack the keyed housing, inviting reversed connections and shorts. OEM is the safe, plug-and-play choice.
Rating: Easy (2/5). With power disconnected, the harness unclips and re-clips in about 15 minutes. Photograph the routing before removal and confirm each connector clicks fully home. A licensed technician is recommended if control-board faults are present.