IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman B1392139 View Port Bushing is a genuine OEM grommet that seals and trims the burner-box sight (view) port on the Goodman GDH80403AXBC gas furnace. It lets technicians observe the flame during operation while maintaining the proper seal around the viewing opening.
A missing or deteriorated bushing can allow air infiltration around the view port, affecting combustion-box pressure and letting the sight opening rattle or admit dust. This small OEM part restores a clean, secure fit and a clear view of the burner flame.
The OEM bushing is molded to the exact diameter of your furnace's view port for a snug, heat-rated fit. Generic grommets may be the wrong size or material and can fail near the burner. Choose OEM for correct fit and durability.
Very Easy (1/5). The bushing presses into the view-port opening by hand. Shut off power and gas, seat the new bushing, and confirm it sits flush — under 10 minutes, no tools needed.