IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman 2568416 HSI Wiring Harness connects the hot surface igniter to the control board on GMP075-3 gas furnaces. Constant heat cycling near the burner assembly makes this harness a common failure point — melted insulation, corroded pins, or a cracked connector housing can cause intermittent no-heat calls, igniter dropouts, and hard-lockout faults that mimic a bad igniter or control board.
This genuine Goodman OEM harness arrives pre-terminated with the correct keyed connectors, so it plugs straight in — no cutting, crimping, or guessing at pin-outs. Universal harnesses require field splicing and often lack the high-temp insulation needed this close to the burners, shortening service life.
Roughly 15–20 minutes. Kill power at the furnace, photograph the routing, unplug the old harness at both ends, and clip the new one into place along the same path away from sharp edges and hot surfaces. Restore power and cycle a heat call to confirm ignition. No special tools required.
Genuine Goodman part shipped fast from National HVAC Parts.