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The Goodman B1392139 View Port Bushing is a genuine OEM replacement for the VMSS960804CNAA gas furnace and compatible Goodman/Amana units. This bushing frames and seals the combustion sight/view port, allowing safe visual inspection of the burner flame while maintaining the integrity of the furnace enclosure.
A hardened, cracked, or missing view-port bushing can allow air infiltration around the sight glass and make flame inspection difficult. Replacing it with the OEM bushing restores a clean, sealed viewing port.
The OEM Goodman bushing is sized to the exact view-port opening and rated for the temperatures near the burner compartment. Generic grommets may not tolerate the heat or seal the opening correctly. For a component this close to combustion, genuine OEM is strongly recommended.
Easy (1/5). Power off the furnace, remove the access panel, pop out the old bushing, and seat the new one in the port opening. No special tools needed; typically a two-minute job.
Confirm compatibility anytime by emailing your model and serial number to info@nationalhvacparts.com.