{"product_id":"oem-goodman-view-port-bushing-for-gsu080-4-furnace-b1392139","title":"OEM Goodman View Port Bushing for GSU080-4 Furnace — B1392139","description":"\u003cp\u003eThe Goodman \u003cstrong\u003eB1392139 View Port Bushing\u003c\/strong\u003e is the factory sight-glass grommet that seals the burner-compartment inspection window on the \u003cstrong\u003eGSU080-4\u003c\/strong\u003e and related Goodman gas furnaces. It lets a technician safely observe the burner flame and ignition sequence without removing panels, while keeping the combustion chamber properly sealed against air leakage.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: B1392139\u003c\/li\u003e\n\u003cli\u003eType: View port \/ sight-glass bushing (grommet)\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GSU080-4 gas furnace\u003c\/li\u003e\n\u003cli\u003eMaterial: High-temp molded polymer\u003c\/li\u003e\n\u003cli\u003eFunction: Seals the flame-inspection window on the burner box\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine Goodman OEM bushing is molded to the exact port diameter, so it seats flush and maintains the correct combustion-chamber seal. Universal grommets often leak air or fall out under heat cycling, which can affect flame stability. For a $1 part, OEM is the sensible choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e No tools required — power down the furnace, press the old bushing out, and snap the replacement into the view port. A 5-minute job for any homeowner or technician.\u003c\/p\u003e\u003cp\u003eAll Goodman OEM parts ship fast and are backed by our fit guarantee.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058182668659,"sku":"GOODMAN-13010","price":0.85,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-view-port-bushing-for-gsu080-4-furnace-b1392139","provider":"National HVAC Parts","version":"1.0","type":"link"}