{"product_id":"oem-goodman-43-burner-orifice-for-adv80905cxba-b4089343","title":"OEM Goodman #43 Burner Orifice for ADV80905CXBA — B4089343","description":"\u003ch2\u003eGoodman B4089343 #43 Burner Orifice (Spud)\u003c\/h2\u003e\u003cp\u003eThe B4089343 is a genuine Goodman\/Amana burner orifice — also called a spud — drilled to a \u003cstrong\u003e#43 orifice size\u003c\/strong\u003e and designed as a direct-fit replacement for the \u003cstrong\u003eADV80905CXBA\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. The orifice threads into the gas manifold and meters the precise volume of gas jetted into each in-shot burner. The drill size sets the BTU input per burner, so using the correct orifice number is essential for safe, efficient, correctly-rated firing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B4089343\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Burner Orifice \/ Spud\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrifice Size:\u003c\/strong\u003e #43 drill\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Goodman \/ Amana (OEM)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel:\u003c\/strong\u003e Natural gas (verify #43 matches your gas type and altitude)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e ADV80905CXBA (and compatible Goodman\/Amana furnaces)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment:\u003c\/strong\u003e Gas Furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM B4089343\u003c\/strong\u003e is precision-machined to Goodman's exact bore and thread spec so BTU input and flame quality match factory settings. Generic or misdrilled orifices can over- or under-fire the furnace, causing sooting, overheating, or a lockout. Because orifice size directly controls gas input, always match the exact number — never substitute by eye. OEM is strongly recommended for combustion accuracy.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty: Moderate\u003c\/h3\u003e\u003cp\u003eRoughly 20–40 minutes. Shut off gas and power, back the old spud out of the manifold with the correct wrench, thread in the new #43 orifice, and leak-check every joint with soap solution before returning to service. Confirm #43 is correct for your fuel type and elevation. Gas work should be performed by a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057511874931,"sku":"GOODMAN-3458","price":9.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-43-burner-orifice-for-adv80905cxba-b4089343","provider":"National HVAC Parts","version":"1.0","type":"link"}