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The Goodman B1392139 is a genuine OEM view port bushing for the AMEH800805DXAA gas furnace and compatible Goodman/Amana models. This bushing seats in the burner-compartment sight port, allowing the flame to be inspected while sealing the opening against air leaks and combustion byproducts. A missing or degraded bushing can disrupt combustion-air balance and allow flue products into the cabinet, so a correct replacement keeps the furnace sealed and safe to inspect.
This genuine OEM bushing is sized precisely to the factory sight-port diameter for a snug, sealed fit. Generic grommets rarely match the exact bore and can fall out or fail to seal, defeating the port's purpose. The inexpensive OEM part is the right choice.
Easy — Snaps into the sight-port opening after power and gas are off. No tools required in most cases. A quick, low-cost maintenance item.
Confirm the part fits your model before ordering. Contact info@nationalhvacparts.com for help.