{"product_id":"oem-goodman-43-burner-orifice-for-gmnt090-4b-b4089343","title":"OEM Goodman #43 Burner Orifice for GMNT090-4B — B4089343","description":"\u003ch2\u003eGoodman B4089343 #43 Burner Orifice (Spud)\u003c\/h2\u003e\u003cp\u003eThe Goodman \u003cstrong\u003eB4089343\u003c\/strong\u003e is a genuine OEM #43 burner orifice, also called a spud, designed for the Goodman \u003cstrong\u003eGMNT090-4B\u003c\/strong\u003e gas furnace and compatible GMNT-series units. The orifice meters the exact volume of gas delivered to each in-shot burner, and its precision-drilled bore is matched to the furnace's BTU input and fuel type. A worn, corroded, or incorrectly sized orifice can cause under-firing, over-firing, sooting, or poor flame quality.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Burner orifice \/ spud\u003c\/li\u003e\n\u003cli\u003eDrill size: #43\u003c\/li\u003e\n\u003cli\u003eThread: Standard Goodman burner-rail thread\u003c\/li\u003e\n\u003cli\u003eMaterial: Machined brass\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMNT090-4B and compatible GMNT furnaces\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B4089343\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOrifice sizing is critical — a bore that is even one drill size off changes gas flow and firing rate. This OEM spud is drilled to Goodman's exact #43 specification. Generic orifices can drift in bore diameter and thread pitch, risking improper combustion. We strongly recommend OEM for any gas-metering component.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate\u003c\/strong\u003e — Requires gas shutoff, removing the burner assembly, and threading in the correct-size orifice. Confirm the drill number matches your furnace rating plate and fuel type. Professional installation recommended.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058130502003,"sku":"GOODMAN-11706","price":9.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-43-burner-orifice-for-gmnt090-4b-b4089343","provider":"National HVAC Parts","version":"1.0","type":"link"}