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The Goodman B1378701 5-Pin Wiring Harness is a genuine OEM electrical connector assembly engineered for the Goodman/Amana APH1530M41AD packaged heat pump and compatible units in the same family. This pre-terminated harness carries the low-voltage control signals between key components, and using the factory part guarantees the correct pin-out, gauge, and connector keying so the system wires up exactly as it left the factory.
A genuine Goodman harness arrives with the correct connector body and factory crimps, eliminating the guesswork of splicing individual wires. Generic or hand-built harnesses can introduce loose terminals, mismatched keying, and intermittent faults that are difficult to diagnose. For a control-circuit component like this, the OEM part is the reliable, code-friendly choice.
Easy. This is typically a plug-and-play swap that a qualified technician can complete in minutes. Always disconnect power at the disconnect and thermostat before servicing. If you are not comfortable working around live electrical connections, have a licensed HVAC professional perform the replacement.
This is a genuine OEM Goodman replacement part. Please verify your unit's model and serial number against the part number before ordering.