{"product_id":"oem-goodman-view-port-bushing-for-gdh80403axbd-b1392139","title":"OEM Goodman View Port Bushing for GDH80403AXBD — B1392139","description":"\u003ch2\u003eGoodman B1392139 View Port Bushing\u003c\/h2\u003e\u003cp\u003eThe B1392139 is a genuine OEM view port bushing (sight-glass grommet) used on Goodman \u003cstrong\u003eGDH80403AXBD\u003c\/strong\u003e gas furnaces and many other Goodman\/Amana 80% AFUE models. It seats in the burner compartment access panel to create a sealed, heat-resistant window so a technician can visually confirm burner flame ignition and rollout without opening the cabinet. A cracked or missing bushing lets combustion air leak and can trip the flame-sensing sequence.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart number: B1392139\u003c\/li\u003e\n\u003cli\u003eType: View port \/ sight-glass bushing\u003c\/li\u003e\n\u003cli\u003eMaterial: High-temperature molded polymer\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GDH80403AXBD and compatible 80% AFUE furnaces\u003c\/li\u003e\n\u003cli\u003eFunction: Seals the flame-observation port\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine Goodman part is molded to the exact port diameter and rated for sustained heat-exchanger-adjacent temperatures. Generic grommets often use lower-temp rubber that hardens, shrinks, and falls out within a season, breaking the combustion-air seal. For a component this inexpensive, OEM is the clear choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Press-fit replacement — power down the furnace, pop out the old bushing, and seat the new one by hand in under a minute. No tools required.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058074763635,"sku":"GOODMAN-10255","price":3.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-view-port-bushing-for-gdh80403axbd-b1392139","provider":"National HVAC Parts","version":"1.0","type":"link"}