{"product_id":"oem-goodman-natural-gas-burner-orifice-for-gmn080-4-b2589343","title":"OEM Goodman Natural Gas Burner Orifice for GMN080-4 — B2589343","description":"\u003ch2\u003eGoodman B2589343 Natural Gas Burner Orifice\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eGoodman B2589343\u003c\/strong\u003e is a genuine OEM \u003cstrong\u003enatural gas\u003c\/strong\u003e burner orifice (spud) for the \u003cstrong\u003eGMN080-4\u003c\/strong\u003e gas furnace. This precision-drilled brass fitting threads into the gas manifold and meters the exact volume of natural gas delivered to each burner, setting the furnace's BTU input and flame quality. A damaged, clogged, or incorrectly sized orifice can cause weak or yellow flames, sooting, delayed ignition, or improper heat output. Installing the correct factory orifice restores clean, efficient, spec-rated combustion.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e B2589343\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel type:\u003c\/strong\u003e Natural gas\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent:\u003c\/strong\u003e Burner orifice \/ manifold spud\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Precision-drilled brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman GMN080-4 furnace\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\u003c\/strong\u003e B2589343 is drilled to Goodman's exact orifice size for the GMN080-4's rated input, guaranteeing correct BTU delivery and safe combustion. A \u003cstrong\u003egeneric\u003c\/strong\u003e orifice risks an incorrect bore diameter — over-firing (overheating, safety trips) or under-firing (poor heat, sooting). Because orifice sizing directly affects combustion safety, we strongly recommend the OEM part.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3\/5).\u003c\/strong\u003e The swap itself is quick, but it involves the gas manifold: shut off the gas supply, disconnect power, remove the burner\/manifold as needed, thread in the correct orifice, and \u003cstrong\u003eleak-test every joint with soap solution\u003c\/strong\u003e before relighting. If you are not experienced working on gas piping, have a licensed HVAC or gas technician perform this repair.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058126209395,"sku":"GOODMAN-11569","price":22.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-natural-gas-burner-orifice-for-gmn080-4-b2589343","provider":"National HVAC Parts","version":"1.0","type":"link"}