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The Goodman B1392139 View Port Bushing is a genuine OEM component for the AMVC961205DNBA gas furnace and related Goodman/Amana models. It seals and reinforces the burner sight/view port opening, allowing a technician to observe the flame while maintaining the cabinet's air-tight seal. A cracked or missing bushing can leak combustion air, distort pressure-switch readings, and let debris into the burner area.
OEM vs. Generic: Universal grommets may not tolerate the near-burner heat or match the port bore, leading to premature cracking and air leaks. This OEM bushing is built to the furnace's original diameter and temperature rating for a reliable seal.
Installation difficulty: Very easy (DIY-friendly). Power down the furnace, press out the old bushing, and seat the new one into the view-port opening until flush. No special tools needed.
Genuine Goodman OEM part. A low-cost item worth replacing whenever the burner area is serviced. Need help confirming fit? Email info@nationalhvacparts.com.