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This genuine OEM Goodman B1378701 5-pin wiring harness is a direct-fit control harness for the Goodman/Amana APH1624H41AB heat pump. It provides the keyed 5-position connection between the control board and its associated component, delivering the correct low-voltage signals through a secure, factory-matched plug.
The OEM B1378701 comes pre-terminated with the right wire gauge, colors, and a keyed 5-pin connector matched to the APH1624H41AB board pin-out. Generic wire requires splicing and risks miswiring or intermittent connections. Genuine OEM ensures the harness simply plugs in the way the factory intended.
Easy. No refrigerant work is involved. Disconnect power, note the routing, unplug the old harness, and connect the new one using the keyed plug. Suitable for a knowledgeable DIYer; consult a technician if you are unsure about the control wiring.
Genuine Goodman part. Verify the pin count and fitment against your unit's model and serial plate, or contact info@nationalhvacparts.com with questions.