{"product_id":"oem-goodman-43-burner-orifice-for-gmt070-3b-b4089343","title":"OEM Goodman #43 Burner Orifice for GMT070-3B — B4089343","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B4089343 #43 Burner Orifice\u003c\/strong\u003e (also called a spud) is a precision-drilled brass metering fitting that controls the exact amount of natural gas fed to each in-shot burner on your \u003cstrong\u003eGoodman GMT070-3B\u003c\/strong\u003e furnace. The \u003cstrong\u003e#43 drill size\u003c\/strong\u003e is calibrated to deliver the correct BTU input for this model. A damaged, corroded, or incorrectly sized orifice causes poor flame, incorrect firing rate, sooting, or nuisance lockouts.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: B4089343\u003c\/li\u003e\n\u003cli\u003eType: Burner orifice \/ gas spud\u003c\/li\u003e\n\u003cli\u003eDrill Size: #43\u003c\/li\u003e\n\u003cli\u003eFuel: Natural gas\u003c\/li\u003e\n\u003cli\u003eMaterial: Machined brass\u003c\/li\u003e\n\u003cli\u003eCompatibility: Goodman GMT070-3B and cross-referenced Goodman\/Amana furnaces\u003c\/li\u003e\n\u003cli\u003eManufacturer: Goodman (OEM)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOrifice sizing is not a place to guess. A genuine \u003cstrong\u003eOEM Goodman #43\u003c\/strong\u003e orifice guarantees the factory-specified gas flow and BTU input. Generic or mismatched orifices can over- or under-fire the furnace, producing carbon monoxide, incomplete combustion, or reduced heat output. Always match the exact drill number stamped on the part — never substitute a different size unless converting fuel type per manufacturer instructions.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy.\u003c\/strong\u003e Orifices thread into the manifold and remove with a properly sized socket or wrench. Shut off the gas supply and furnace power first, replace with the identical #43 size, and check for leaks with soapy water after reassembly. Order one per burner. If gas work is unfamiliar to you, use a licensed HVAC technician. Typical time is 10–20 minutes.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058157732211,"sku":"GOODMAN-12317","price":5.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-43-burner-orifice-for-gmt070-3b-b4089343","provider":"National HVAC Parts","version":"1.0","type":"link"}