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The genuine Goodman B1378700 16-Pin Wiring Harness is a factory-engineered electrical connector assembly designed for Goodman and Amana AEPT036-00C-1 air handlers. This harness routes the primary control and blower signals between the air handler control board and its components, ensuring reliable, code-compliant connections. When an original harness becomes brittle, corroded, or develops intermittent faults, replacing it with the correct OEM assembly restores dependable operation without rewiring the entire unit.
This is a genuine Goodman OEM harness with the exact pin count, keying, and wire gauge specified by the manufacturer. Generic or universal harnesses often require splicing and pin remapping, which voids warranties and introduces failure points. The OEM part plugs in directly, eliminating guesswork and reducing callbacks.
Easy (1 of 5). A qualified technician can swap this harness in minutes — disconnect power, unplug the old harness at both keyed connectors, route the new harness along the original path, and reconnect. No splicing required. Always disconnect electrical power before servicing and confirm compatibility with your unit's model and serial number.