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The Goodman B1378701 5-Pin Wiring Harness is a genuine OEM connector assembly for the Goodman WGPH4524AMAB packaged air conditioning system. This compact 5-pin harness carries power and signal between the control board and a dedicated component or sensor circuit. Damaged pins, heat-melted plugs, or chafed insulation lead to nuisance faults and unreliable operation — installing a new harness restores a secure, factory-spec connection.
The OEM harness comes pre-terminated with correct pin keying, wire gauge, and color coding for a true plug-and-play swap. Generic alternatives require splicing and re-pinning that can introduce errors. OEM ensures a direct, reliable fit.
Easy — Disconnect power, unplug the old connector, and snap the new harness into place. Minimal tools required.