{"product_id":"oem-goodman-view-port-bushing-for-ams80403axac-furnace-b1392139","title":"OEM Goodman View Port Bushing for AMS80403AXAC Furnace — B1392139","description":"\u003ch2\u003eGoodman B1392139 View Port Bushing\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eB1392139 view port bushing\u003c\/strong\u003e is a genuine OEM sight-glass grommet designed for the Goodman\/Amana \u003cstrong\u003eAMS80403AXAC\u003c\/strong\u003e gas furnace and other compatible 80% AFUE models. It seals the inspection opening on the burner compartment, allowing a technician to safely view the flame and confirm proper ignition and burner operation without exposing the cabinet interior. A cracked, missing, or hardened bushing can leak combustion products and let unfiltered air into the burner box, so replacing it with an exact-fit OEM part keeps the furnace inspectable and code-compliant.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: B1392139\u003c\/li\u003e\n\u003cli\u003ePart Type: View Port \/ Sight-Glass Bushing (fitting)\u003c\/li\u003e\n\u003cli\u003eFits Model: AMS80403AXAC and compatible Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (Amana family)\u003c\/li\u003e\n\u003cli\u003eApplication: Gas Furnace burner compartment\u003c\/li\u003e\n\u003cli\u003eMaterial: Heat-resistant molded grommet\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eGeneric bushings often use a looser tolerance that lets the sight glass rattle loose or fails to seal against combustion-chamber pressure. The genuine \u003cstrong\u003eB1392139\u003c\/strong\u003e is molded to Goodman's exact port dimensions for a tight, lasting seal and correct heat rating — the safest choice for a combustion component.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Press-fit replacement; no tools or wiring required. Always shut off gas and power before servicing the burner compartment.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057683710323,"sku":"GOODMAN-6725","price":9.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-view-port-bushing-for-ams80403axac-furnace-b1392139","provider":"National HVAC Parts","version":"1.0","type":"link"}