{"product_id":"oem-goodman-natural-gas-orifice-for-gmp100-3-b2589343","title":"OEM Goodman Natural Gas Orifice for GMP100-3 — B2589343","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B2589343 Natural Gas Orifice\u003c\/strong\u003e is a genuine OEM replacement precision-drilled for the \u003cstrong\u003eGoodman GMP100-3\u003c\/strong\u003e gas furnace. The orifice (or spud) meters the exact volume of gas entering each burner, setting the furnace's BTU input and flame quality. Even a slightly oversized or worn orifice bore causes over-firing, sooting, and lazy yellow flames, while a clogged orifice starves the burner. Installing the factory-spec B2589343 restores clean, blue, efficient combustion.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFuel type: Natural gas\u003c\/li\u003e\n\u003cli\u003eFunction: Meters gas to burner for correct BTU input\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMP100-3 furnace\u003c\/li\u003e\n\u003cli\u003eThread: Factory-matched to GMP100-3 manifold\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B2589343\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOrifice bore diameter is drilled to tight tolerances at the factory — a genuine \u003cstrong\u003eGoodman OEM\u003c\/strong\u003e orifice guarantees the correct BTU rating for your furnace and altitude. Generic or universal orifices frequently have inconsistent bores that force re-calibration and risk unsafe firing rates. For a metering component, OEM precision matters.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy to Moderate\u003c\/strong\u003e — shut off the gas, remove the burner assembly, and thread in the new orifice. Verify manifold pressure and flame appearance after install. A common wear item that most handy homeowners can replace, though a technician should confirm firing rate.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058136465779,"sku":"GOODMAN-11876","price":22.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-natural-gas-orifice-for-gmp100-3-b2589343","provider":"National HVAC Parts","version":"1.0","type":"link"}