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The Goodman B1392139 View Port Bushing is a genuine OEM grommet that seats in the sight-glass / view-port opening of the ACVC80805CXCA gas furnace. This small but important fitting frames the burner-observation port, maintains the proper seal around the opening, and protects technicians and the cabinet edge during flame inspection. A missing or deteriorated bushing can allow air leakage around the port and affect combustion air balance.
The OEM B1392139 is sized to snap securely into the factory view-port cutout for a clean, sealed fit. Generic grommets may be the wrong diameter or material rating and can fall out or degrade near the burner area. OEM is the recommended choice for a lasting seal.
Easy. Press-fit into the view-port opening — no tools required. Cut power before opening the burner compartment. A 5-minute replacement for most homeowners.