{"product_id":"oem-goodman-43-burner-orifice-for-gdt045-3b-b4089343","title":"OEM Goodman #43 Burner Orifice for GDT045-3B — B4089343","description":"\u003ch2\u003eGoodman B4089343 #43 Burner Orifice\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eB4089343\u003c\/strong\u003e is a genuine OEM gas burner orifice (spud) engineered for \u003cstrong\u003eGoodman GDT045-3B\u003c\/strong\u003e gas furnaces and closely related Goodman\/Amana models. The orifice meters the exact volume of natural gas delivered to each burner, so the \u003cstrong\u003e#43 drill size\u003c\/strong\u003e is critical to maintaining the correct BTU input, a clean blue flame, and safe, efficient combustion. A worn, corroded, or incorrectly sized orifice causes yellow-tipping flames, sooting, delayed ignition, or lockouts — replacing it restores factory performance.\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\u003eGas type:\u003c\/strong\u003e Natural gas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread:\u003c\/strong\u003e Standard Goodman burner spud thread\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Machined brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GDT045-3B and compatible gas furnace burner assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOur \u003cstrong\u003eOEM Goodman B4089343\u003c\/strong\u003e is drilled and gauged to factory tolerance, guaranteeing the precise orifice bore for verified BTU input. Generic aftermarket orifices may vary by a few thousandths of an inch — enough to over- or under-fire the burner and affect efficiency or safety. The genuine part is the safe, spec-exact choice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (1 of 5).\u003c\/strong\u003e Shut off gas and power, remove the burner, unthread the old orifice, and thread in the replacement. Verify with a manometer that manifold pressure and flame appearance are correct. A gas-qualified technician should confirm combustion.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058079154547,"sku":"GOODMAN-10410","price":5.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-43-burner-orifice-for-gdt045-3b-b4089343","provider":"National HVAC Parts","version":"1.0","type":"link"}