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The Goodman B1392139 is a genuine OEM view port bushing designed as an exact-fit replacement for the ADSH800804BXAC furnace and compatible Goodman/Amana models. This bushing seats the flame-inspection sight port on the burner compartment, holding the view glass securely while helping maintain the compartment seal so technicians can safely observe the burner flame during operation.
The OEM B1392139 is molded to the precise diameter and heat rating of the furnace's inspection port, so it snaps in cleanly and resists heat-related cracking. Generic bushings may fit loosely or degrade near the burner heat, compromising the compartment seal. For a low-cost part that protects a proper seal, genuine OEM is well worth it.
Easy (1/5). A press-in/snap-fit replacement requiring no tools beyond removing the burner-compartment cover; typically under 10 minutes. Turn off power and gas before opening the compartment.