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The Goodman B1392139 View Port Bushing is a genuine OEM sight-glass grommet designed for the VMES960603BNAA gas furnace and compatible Goodman/Amana models. This small but critical fitting seals the inspection port on the burner compartment, letting a technician safely observe flame characteristics while keeping the combustion chamber isolated from ambient air. A cracked or missing bushing can cause air infiltration, nuisance flame-sensor faults, and failed inspections — making this an inexpensive part worth keeping on hand.
Choosing the OEM Goodman B1392139 guarantees an exact dimensional and temperature-rating match to the original factory port. Generic grommets are often close in size but may harden or shrink at furnace operating temperatures, breaking the seal. For a sealed combustion appliance, OEM is the safe choice.
Easy (1/5) — Press-fit replacement. Power down the furnace, remove the old bushing, and seat the new one in the port. No tools or wiring required. Total time under five minutes.
All parts ship from a US warehouse. Questions on fitment? Contact info@nationalhvacparts.com.