{"product_id":"oem-goodman-43-burner-orifice-for-ams80453ana-b4089343","title":"OEM Goodman #43 Burner Orifice for AMS80453ANA — B4089343","description":"\u003ch2\u003eGoodman B4089343 #43 Burner Orifice\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003eB4089343\u003c\/strong\u003e is a genuine OEM #43 burner orifice (spud) sized as a direct-fit replacement for the \u003cstrong\u003eAMS80453ANA\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. The orifice meters the exact volume of gas into each in-shot burner, setting the furnace's rated BTU input. Using the correct drill-size orifice is essential for safe, efficient combustion.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: B4089343\u003c\/li\u003e\n\u003cli\u003eType: Burner orifice \/ spud\u003c\/li\u003e\n\u003cli\u003eDrill size: #43\u003c\/li\u003e\n\u003cli\u003eThread: Standard Goodman manifold thread\u003c\/li\u003e\n\u003cli\u003eFits: Goodman AMS80453ANA and compatible 80% furnaces\u003c\/li\u003e\n\u003cli\u003eBrand: Goodman (Genuine OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOEM orifices are precision-drilled and deburred to the exact #43 specification, so gas input matches the furnace rating plate. Generic or re-drilled orifices can over- or under-fire the burners, causing sooting, short cycling, or heat-exchanger stress. Never enlarge or modify an orifice in the field—always install the factory-specified size.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (2\/5).\u003c\/strong\u003e Turn off the gas and power, remove the manifold or back out the old orifice with a deep socket, and thread in the new B4089343 snugly without over-torquing. Confirm the correct orifice size for your fuel type (natural gas vs. LP) and verify manifold pressure. Have a licensed technician check combustion after installation.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057684169075,"sku":"GOODMAN-6747","price":5.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-43-burner-orifice-for-ams80453ana-b4089343","provider":"National HVAC Parts","version":"1.0","type":"link"}