{"product_id":"oem-goodman-brass-view-port-bushing-for-wfm18140s5dncc-b1392139","title":"OEM Goodman Brass View Port Bushing for WFM18140S5DNCC — 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 fitting used on the Goodman \u003cstrong\u003eWFM18140S5DNCC\u003c\/strong\u003e gas furnace. It seats in the burner compartment access panel so technicians can safely observe the flame pattern and ignition sequence without opening the cabinet. A cracked, clouded, or missing bushing is a common cause of failed flame-inspection checks — replacing it restores a clear, sealed viewing port and keeps the combustion area properly isolated.\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 WFM18140S5DNCC and compatible furnace platforms\u003c\/li\u003e\n\u003cli\u003eMaterial: Heat-resistant molded bushing\u003c\/li\u003e\n\u003cli\u003eApplication: Burner compartment flame-view port\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is a \u003cstrong\u003egenuine Goodman OEM\u003c\/strong\u003e bushing engineered to the exact bore and flange dimensions of the factory panel opening. Generic aftermarket bushings often run slightly undersized or use lower-temperature plastics that yellow and crack near the burner box. For a fitting this inexpensive, OEM is the smart choice — an ill-fitting part can whistle, leak flue gases, or fall out.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (DIY-friendly).\u003c\/strong\u003e Power down the furnace, press or thread the old bushing out of the access panel, and seat the new one until flush. No special tools required. Estimated time: under 5 minutes. Always confirm power is off at the disconnect before servicing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058230313331,"sku":"GOODMAN-14175","price":6.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-brass-view-port-bushing-for-wfm18140s5dncc-b1392139","provider":"National HVAC Parts","version":"1.0","type":"link"}