{"product_id":"oem-goodman-view-port-bushing-for-wfm18090s4bxcc-furnace-b1392139","title":"OEM Goodman View Port Bushing for WFM18090S4BXCC Furnace — B1392139","description":"\u003ch2\u003eGoodman B1392139 View Port Bushing\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003eB1392139\u003c\/strong\u003e is a genuine OEM view port bushing engineered as a direct-fit replacement for the \u003cstrong\u003eWFM18090S4BXCC\u003c\/strong\u003e gas furnace and other compatible Goodman\/Amana models. This bushing seats in the combustion access panel to hold the sight glass, allowing safe visual inspection of the burner flame while maintaining a sealed combustion chamber. A cracked, brittle, or missing bushing can allow air leaks that disturb flame stability, so replacing it with the correct OEM part restores proper combustion draft and safety.\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\u003eFits: Goodman WFM18090S4BXCC and compatible furnaces\u003c\/li\u003e\n\u003cli\u003eMaterial: High-temperature molded grommet\u003c\/li\u003e\n\u003cli\u003eFunction: Seals and retains the combustion inspection port\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOur \u003cstrong\u003eOEM Goodman\u003c\/strong\u003e bushing matches the exact bore diameter and temperature rating of the factory component, ensuring a leak-free seal that generic universal grommets often cannot guarantee. Off-brand substitutes may shrink or deform at combustion-chamber temperatures. Choose OEM for guaranteed fit and long-term reliability around the burner assembly.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Replacement takes only minutes — power down the furnace, remove the old bushing from the access panel, press the new B1392139 into place, and reseat the sight glass. No special tools required. Always shut off gas and electrical power before servicing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058226708851,"sku":"GOODMAN-14115","price":6.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-view-port-bushing-for-wfm18090s4bxcc-furnace-b1392139","provider":"National HVAC Parts","version":"1.0","type":"link"}