IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The B1392139 is a genuine OEM view-port bushing for the Goodman/Amana AMVC960804CNBA 96% AFUE gas furnace. It seals the burner observation (sight-glass) opening on the combustion enclosure, letting technicians inspect the flame while maintaining a proper seal against air infiltration. A cracked or missing bushing can disturb combustion-chamber pressure and allow air leakage that affects flame quality and pressure-switch operation.
The OEM B1392139 is sized to the exact port bore on this furnace's burner enclosure, giving an air-tight fit that generic grommets rarely match. Because it seats on a combustion-side opening, an imprecise seal can subtly affect flame and pressure readings — making the correct OEM bushing the reliable choice.
Very Easy (1/5). Disconnect power, remove the burner/combustion cover if needed, press out the old bushing, and push the new one into the port until fully seated. No tools or combustion work required.