{"product_id":"oem-goodman-43-burner-orifice-for-dms81405dna-b4089343","title":"OEM Goodman #43 Burner Orifice for DMS81405DNA — B4089343","description":"\u003ch2\u003eGoodman B4089343 #43 Burner Orifice\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eB4089343\u003c\/strong\u003e is a genuine Goodman burner orifice (spud) drilled to \u003cstrong\u003e#43 size\u003c\/strong\u003e for the \u003cstrong\u003eDMS81405DNA\u003c\/strong\u003e furnace and compatible Goodman\/Amana gas furnaces. The orifice meters the exact volume of gas fed into each in-shot burner, so bore diameter directly governs BTU input, flame size, and combustion efficiency. A worn, enlarged, or debris-clogged orifice throws off the air-fuel ratio and causes poor flames or improper firing rate.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: B4089343\u003c\/li\u003e\n\u003cli\u003ePart Type: 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\u003eMaterial: Machined brass\u003c\/li\u003e\n\u003cli\u003eFits: Goodman DMS81405DNA and compatible Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003eSold: Individually (one per burner)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOrifice sizing is a certified combustion spec. The \u003cstrong\u003eOEM B4089343\u003c\/strong\u003e holds the precise #43 bore and thread pitch required for the DMS81405DNA's rated BTU input. Generic or mis-drilled orifices can over- or under-fire the furnace — always use OEM and confirm the size matches your unit's rating plate and fuel type.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Shut off gas, back the old orifice out of the manifold with a nut driver, and thread in the replacement. Verify the burner flame after relighting.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058051105139,"sku":"GOODMAN-9642","price":12.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-43-burner-orifice-for-dms81405dna-b4089343","provider":"National HVAC Parts","version":"1.0","type":"link"}