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The Goodman 0259F00008P is a genuine OEM 15-pin male wiring harness built for the GMTH070-4A gas furnace and compatible Goodman/Amana units. This male connector assembly mates with the furnace's corresponding female harness to carry control and power signals between the board and downstream components. Cracked housings, backed-out pins, or heat-damaged terminals can produce intermittent no-heat faults and nuisance lockouts, so a factory-matched replacement restores solid, repeatable connections.
The OEM 0259F00008P provides the exact 15-pin layout, keying, and terminal spec required to mate cleanly with the factory female connector (0259F00009P). Generic harnesses may not align pin-for-pin and often require manual crimping. For guaranteed compatibility and a no-splice install, the OEM part is the safe choice.
Easy (~10–20 minutes). Disconnect power at the breaker first. Unplug the old male harness, route the replacement along the original path, and firmly seat it into the mating female connector until it locks. Verify the latch is engaged before restoring power. When in doubt, use a licensed HVAC professional.