{"product_id":"oem-goodman-view-port-bushing-for-ams80904bnaa-furnace-b1392139","title":"OEM Goodman View Port Bushing for AMS80904BNAA Furnace — B1392139","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1392139 View Port Bushing\u003c\/strong\u003e is the genuine OEM sight-glass grommet for the \u003cstrong\u003eAMS80904BNAA\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. This small but important fitting seals the burner inspection window on the combustion cover, letting technicians visually verify flame quality while maintaining the cabinet's sealed-combustion integrity. A cracked, brittle, or missing bushing can allow air leaks that disturb the burner flame and defeat proper draft.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: View port \/ sight-glass bushing (grommet)\u003c\/li\u003e\n\u003cli\u003eFunction: Seals burner inspection window\u003c\/li\u003e\n\u003cli\u003eFits: AMS80904BNAA and compatible Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003eMaterial: High-temperature resistant grommet\u003c\/li\u003e\n\u003cli\u003eInstallation: Snap-in \/ press-fit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman B1392139\u003c\/strong\u003e is molded to the exact port diameter and rated for the temperatures at the burner box. Generic grommets may not seal fully or can degrade quickly under heat, leading to combustion-air leaks. At this price, there's no reason not to use the genuine part.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eDifficulty: Very Easy.\u003c\/strong\u003e Press the old bushing out and snap the new one into the port opening — under 5 minutes, no tools required. \u003cem\u003eShut off power and gas and allow the furnace to cool before opening the burner compartment.\u003c\/em\u003e Confirm the bushing seats fully around its entire lip for a proper seal.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057705861491,"sku":"GOODMAN-7074","price":0.85,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-view-port-bushing-for-ams80904bnaa-furnace-b1392139","provider":"National HVAC Parts","version":"1.0","type":"link"}