{"product_id":"oem-goodman-43-burner-orifice-for-dms80905cna-b4089343","title":"OEM Goodman #43 Burner Orifice for DMS80905CNA — B4089343","description":"\u003ch2\u003eGoodman B4089343 #43 Burner Orifice\u003c\/h2\u003e\u003cp\u003eThe B4089343 is a genuine Goodman #43 (drill-size 43) burner orifice engineered for the \u003cstrong\u003eDMS80905CNA\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana 80% AFUE models. This precision-machined brass spud threads into the manifold and meters the exact natural-gas flow each burner needs for a clean, stable flame. A worn, corroded, or incorrectly sized orifice causes lazy yellow flames, sooting, delayed ignition, and reduced heat output — replacing it restores factory combustion performance.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: B4089343\u003c\/li\u003e\n\u003cli\u003eOrifice \/ Drill Size: #43\u003c\/li\u003e\n\u003cli\u003eFuel: Natural Gas\u003c\/li\u003e\n\u003cli\u003eMaterial: Machined brass\u003c\/li\u003e\n\u003cli\u003eFits: Goodman DMS80905CNA and compatible 80% furnaces\u003c\/li\u003e\n\u003cli\u003eApplication: Gas burner manifold\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine Goodman orifice is drilled to exact factory tolerances, guaranteeing correct BTU input and safe combustion. Generic orifices are lower cost but drill-size variance can shift gas flow, risking flame-sensor faults or improper input rate. For a metered gas component like this, OEM is strongly recommended.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate\u003c\/strong\u003e — Requires shutting off gas, removing the burner assembly, and swapping the spud. Verify manifold pressure after install. Professional installation recommended for gas components.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058049728883,"sku":"GOODMAN-9620","price":12.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-43-burner-orifice-for-dms80905cna-b4089343","provider":"National HVAC Parts","version":"1.0","type":"link"}