{"product_id":"oem-goodman-view-port-sight-glass-bushing-for-gdh80403anbb-b1392139","title":"OEM Goodman View Port Sight Glass Bushing for GDH80403ANBB — B1392139","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B1392139 View Port Bushing\u003c\/strong\u003e is a genuine OEM component designed for the \u003cstrong\u003eGDH80403ANBB\u003c\/strong\u003e 80% AFUE gas furnace. This small but essential grommet seats into the burner compartment door and holds the flame-observation sight glass in place, sealing the inspection port against combustion-gas leakage while allowing a technician to visually confirm ignition and flame quality during service.\u003c\/p\u003e\u003cp\u003eMade from heat-resistant material rated for the burner-box environment, this bushing prevents warm-air bypass and keeps the sight-glass window secure over years of thermal cycling. A cracked, missing, or brittle bushing is a common cause of a loose or rattling view port and can allow flue products to escape into the cabinet.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e View port \/ sight glass bushing (fitting)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e B1392139\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Model:\u003c\/strong\u003e GDH80403ANBB gas furnace\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-temperature molded grommet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocation:\u003c\/strong\u003e Burner-compartment \/ combustion access door\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman\u003c\/strong\u003e bushing guarantees an exact-fit seal and factory tolerance for the GDH80403ANBB port opening. Our lower-cost \u003cstrong\u003egeneric-equivalent\u003c\/strong\u003e option fits the same opening and performs the identical sealing function at a reduced price, making it a smart choice for budget repairs or bulk service stock.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e No tools required in most cases — press the old bushing out and snap the replacement into the port opening. Always shut off power and gas to the furnace before opening the burner compartment. Installation typically takes under five minutes.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058070569331,"sku":"GOODMAN-B1392139","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-view-port-sight-glass-bushing-for-gdh80403anbb-b1392139","provider":"National HVAC Parts","version":"1.0","type":"link"}