{"product_id":"oem-goodman-view-port-bushing-for-amvm970804cnba-b1392139","title":"OEM Goodman View Port Bushing for AMVM970804CNBA — B1392139","description":"\u003ch2\u003eGoodman B1392139 View Port Bushing\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eB1392139\u003c\/strong\u003e is a genuine Goodman OEM view port bushing designed for the \u003cstrong\u003eAMVM970804CNBA\u003c\/strong\u003e modulating, variable-speed gas furnace. This small but critical rubber\/nylon grommet seats the burner sight-glass window in the combustion housing, sealing the inspection port so you can safely observe flame ignition and burner operation without allowing flue gases or air leaks around the opening.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart type: View port \/ sight-glass bushing (grommet)\u003c\/li\u003e\n\u003cli\u003eOEM part number: B1392139\u003c\/li\u003e\n\u003cli\u003eCompatible model: AMVM970804CNBA (AMVM97 series)\u003c\/li\u003e\n\u003cli\u003eEquipment: 80,000 BTU modulating condensing furnace\u003c\/li\u003e\n\u003cli\u003eMaterial: Heat-resistant molded polymer\u003c\/li\u003e\n\u003cli\u003eFit: Direct OEM replacement — no modification required\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is the \u003cstrong\u003egenuine Goodman OEM\u003c\/strong\u003e component, molded to exact factory tolerances so the sight glass seats and seals correctly. Generic or universal grommets often fit loosely, distort under combustion-chamber heat, and can compromise the flue seal. For a furnace inspection port, an exact fit matters — choose OEM.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1\/5).\u003c\/strong\u003e Power down the furnace, pop the old bushing out of the housing opening, press the new B1392139 into place, and reseat the sight glass. No tools required. Always cut power at the disconnect before servicing.\u003c\/p\u003e\u003cp\u003eBacked by fast shipping from National HVAC Parts. Verify your model number before ordering to ensure exact fit.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058006638963,"sku":"GOODMAN-9300","price":9.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-view-port-bushing-for-amvm970804cnba-b1392139","provider":"National HVAC Parts","version":"1.0","type":"link"}