{"product_id":"oem-goodman-furnace-view-port-bushing-for-ams80904bna-b1392139","title":"OEM Goodman Furnace View Port Bushing for AMS80904BNA — B1392139","description":"\u003ch2\u003eGoodman B1392139 View Port Bushing\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eB1392139 view port bushing\u003c\/strong\u003e is the genuine OEM sight-glass grommet that seals the burner-observation window on the Goodman\/Amana \u003cstrong\u003eAMS80904BNA\u003c\/strong\u003e gas furnace. It lets a technician safely view the burner flame and igniter through the burner compartment while maintaining the correct combustion-cabinet seal. A cracked, brittle, or missing bushing can allow air leaks around the port and make flame inspection difficult, so replacing it during routine service keeps the burner area sealed and serviceable.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: View \/ observation port bushing (sight-glass grommet)\u003c\/li\u003e\n\u003cli\u003eMaterial: Heat-resistant molded polymer\u003c\/li\u003e\n\u003cli\u003eFunction: Seals burner viewing port\u003c\/li\u003e\n\u003cli\u003eFits: Goodman\/Amana AMS80904BNA and related 80% furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part #: B1392139\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM B1392139 is molded to the exact diameter and depth of the factory port opening, so it snaps in flush and stays sealed under the burner compartment's heat cycling. Generic grommets often run slightly under- or oversized, leading to a loose fit or premature cracking. For a clean, sealed fit the first time, choose the genuine Goodman part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eVery Easy (1 of 5).\u003c\/strong\u003e No tools typically required — press the old bushing out and snap the new one into the port opening. Perform with the furnace powered off. Ideal to replace as part of an annual furnace tune-up.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057705501043,"sku":"GOODMAN-7061","price":6.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-furnace-view-port-bushing-for-ams80904bna-b1392139","provider":"National HVAC Parts","version":"1.0","type":"link"}