{"product_id":"oem-goodman-45-burner-orifice-for-gmpn080-4-b2589345","title":"OEM Goodman #45 Burner Orifice for GMPN080-4 — B2589345","description":"\u003ch2\u003eGoodman B2589345 #45 Gas Burner Orifice\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eGoodman B2589345\u003c\/strong\u003e is a genuine OEM #45 drill-size gas burner orifice (spud) for the \u003cstrong\u003eGMPN080-4\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. The orifice meters the exact gas flow into each burner, and its precise bore diameter is what sets proper BTU input and a clean, blue flame. A worn, enlarged, or debris-clogged orifice causes lazy yellow flames, sooting, delayed ignition, or incorrect firing rate — all corrected by installing the correctly sized factory orifice.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOrifice size: #45 drill\u003c\/li\u003e\n\u003cli\u003eFunction: Meters gas flow to a single burner\u003c\/li\u003e\n\u003cli\u003eFuel: Natural gas (verify against your rating plate)\u003c\/li\u003e\n\u003cli\u003eOEM Part Number: B2589345\u003c\/li\u003e\n\u003cli\u003eCompatible model: Goodman GMPN080-4\u003c\/li\u003e\n\u003cli\u003eEquipment type: Gas Furnace\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman B2589345\u003c\/strong\u003e is drilled and deburred to the exact #45 specification, guaranteeing correct BTU input and thread fit into the manifold. Generic orifices can vary in bore diameter or thread quality, throwing off the firing rate and combustion safety. Because orifice sizing directly affects safe combustion, always match the factory part and your furnace's rating plate.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3\/5).\u003c\/strong\u003e Roughly 20–30 minutes. It threads into the gas manifold, so the job requires shutting off the gas, removing burners, and leak-testing on completion. \u003cstrong\u003eBest performed by a licensed HVAC technician\u003c\/strong\u003e — confirm orifice size against your unit's rating plate before firing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058148032883,"sku":"GOODMAN-12089","price":13.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-45-burner-orifice-for-gmpn080-4-b2589345","provider":"National HVAC Parts","version":"1.0","type":"link"}