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The Goodman B1392139 View Port Bushing is a genuine OEM replacement grommet that seats the sight-glass/inspection port on your AMEC960603BNAA gas furnace. This small but essential fitting keeps the burner-observation window sealed and correctly positioned, preventing air leaks around the combustion viewing area and ensuring the flame can be inspected safely during service. A cracked, brittle, or missing bushing is a common cause of whistling combustion-air noise and failed sight-window seals.
The genuine Goodman B1392139 is molded to the exact port diameter of the AMEC960603BNAA cabinet, so it snaps in flush and seals on the first try. Generic universal grommets are often the wrong wall thickness, allowing combustion-air leaks or falling out over time. For a component this inexpensive, OEM is the smart choice.
Easy (1 of 5) — Press-fit; no tools required. Power down the furnace, remove the old bushing, and seat the new one in the port. Under 5 minutes for most homeowners.