{"product_id":"oem-goodman-view-port-bushing-for-vms80403anaa-furnace-b1392139","title":"OEM Goodman View Port Bushing for VMS80403ANAA Furnace — B1392139","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1392139 View Port Bushing\u003c\/strong\u003e is a genuine OEM grommet that seals the sight-glass\/inspection opening on the burner compartment of the \u003cstrong\u003eVMS80403ANAA\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana 80% AFUE models. This small but critical fitting keeps the burner box air-tight so the flame-viewing port doesn't leak combustion air, which can otherwise cause flame roll-out, nuisance pressure-switch trips, and inaccurate flame-sensor readings.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e View port bushing \/ sight-glass grommet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e VMS80403ANAA (and related Goodman 80% multi-position furnaces)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-temperature molded polymer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Seals inspection port on burner box\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e B1392139\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is a factory Goodman OEM part guaranteed to match the original diameter and heat rating. Generic aftermarket grommets are cheaper but often shrink, harden, or fall out at furnace operating temperatures, breaking the burner-box seal. For a component this inexpensive, OEM is the right call.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Push-fit replacement — no tools required. Power down the furnace, pop out the old bushing, and press the new one into the port. A typical replacement takes under two minutes. Always shut off gas and power before servicing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058208850291,"sku":"GOODMAN-13675","price":9.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-view-port-bushing-for-vms80403anaa-furnace-b1392139","provider":"National HVAC Parts","version":"1.0","type":"link"}