{"product_id":"oem-goodman-43-natural-gas-burner-orifice-for-ams81155cna-b4089343","title":"OEM Goodman #43 Natural Gas Burner Orifice for AMS81155CNA — B4089343","description":"\u003ch2\u003eGoodman B4089343 #43 Natural Gas Burner Orifice\u003c\/h2\u003e\u003cp\u003eThe Goodman\/Amana \u003cstrong\u003eB4089343\u003c\/strong\u003e is a genuine OEM natural gas burner orifice (spud) engineered for the \u003cstrong\u003eAMS81155CNA\u003c\/strong\u003e 80% AFUE gas furnace and compatible Goodman\/Amana models. Each orifice meters the precise gas flow into a single burner, so a worn, corroded, or incorrectly drilled orifice can cause lazy flames, delayed ignition, sooting, or nuisance limit trips. Replacing all orifices as a set restores the factory heat-rate and clean, blue flames.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrifice size:\u003c\/strong\u003e #43 drill\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel:\u003c\/strong\u003e Natural gas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e 1\/8\" NPT brass spud (OEM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e AMS81155CNA and related Goodman\/Amana 80% AFUE furnaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Machined brass\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM B4089343\u003c\/strong\u003e is drilled and gauged to Goodman's exact BTU specification, guaranteeing correct input rate and CSA-listed combustion. Generic orifices are often stamped to a nominal size and can vary by a few thousandths of an inch — enough to over- or under-fire the burner. For a safety-listed gas appliance we strongly recommend the OEM part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Easy (1\/5)\u003c\/h3\u003e\u003cp\u003eShut off gas and power, remove the burner assembly or manifold, thread out the old orifice with a deep socket, and install the new spud hand-tight plus a snug turn. Always leak-check with soap solution and verify flame appearance after service. Gas work should be performed by a qualified HVAC technician where required by local code.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057715167603,"sku":"GOODMAN-7175","price":5.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-43-natural-gas-burner-orifice-for-ams81155cna-b4089343","provider":"National HVAC Parts","version":"1.0","type":"link"}