{"product_id":"oem-goodman-43-gas-burner-orifice-for-ams80703axa-b4089343","title":"OEM Goodman #43 Gas Burner Orifice for AMS80703AXA — B4089343","description":"\u003ch2\u003eGoodman B4089343 #43 Natural Gas Burner Orifice\u003c\/h2\u003e\u003cp\u003eThe Goodman B4089343 is a genuine OEM #43 drill-size gas burner orifice engineered for the \u003cstrong\u003eAMS80703AXA\u003c\/strong\u003e multi-position gas furnace. The orifice meters the precise volume of natural gas delivered to each burner, ensuring a clean, stable flame and correct manifold pressure. A worn, corroded, or incorrectly sized orifice causes lazy flames, delayed ignition, sooting, or lockouts — replacing it with the exact factory-spec part restores safe, efficient combustion.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOrifice size: #43 drill (natural gas)\u003c\/li\u003e\n\u003cli\u003eThread: standard Goodman\/Amana burner manifold fit\u003c\/li\u003e\n\u003cli\u003eMaterial: brass\u003c\/li\u003e\n\u003cli\u003eFuel type: Natural Gas\u003c\/li\u003e\n\u003cli\u003eFits: AMS80703AXA and compatible 80% AFUE furnaces\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe OEM Goodman B4089343 is drilled and gauged to the manufacturer's exact gas-flow tolerance, so manifold pressure and BTU input stay within spec. Generic orifices vary in bore diameter and can under- or over-fire the burner, risking efficiency loss or CO production. For a gas-metering component, we strongly recommend OEM.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate.\u003c\/strong\u003e Requires shutting off gas, removing the manifold, and verifying manifold pressure after replacement. Gas work should be performed by a qualified HVAC technician. Estimated time: 20–40 minutes.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eCompatible with Goodman and Amana AMS80703AXA series furnaces. Verify your model and orifice number before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057690329459,"sku":"GOODMAN-6895","price":5.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-43-gas-burner-orifice-for-ams80703axa-b4089343","provider":"National HVAC Parts","version":"1.0","type":"link"}