{"product_id":"oem-goodman-45-natural-gas-burner-orifice-for-gmpn100-4-b2589345","title":"OEM Goodman #45 Natural Gas Burner Orifice for GMPN100-4 — B2589345","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B2589345 Burner Orifice\u003c\/strong\u003e is a genuine OEM #45 natural-gas spud for the \u003cstrong\u003eGMPN100-4\u003c\/strong\u003e gas furnace and compatible Goodman\/Amana models. The orifice meters the precise volume of gas delivered to each burner, so the correct drill size is essential for a clean, efficient flame and proper input BTU rating. Using the factory-specified #45 orifice keeps combustion in spec and avoids sooting, delayed ignition, or over-firing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOEM Part Number: B2589345\u003c\/li\u003e\n\u003cli\u003eType: Main burner orifice \/ spud\u003c\/li\u003e\n\u003cli\u003eDrill Size: #45\u003c\/li\u003e\n\u003cli\u003eFuel: Natural gas\u003c\/li\u003e\n\u003cli\u003eThread: Standard Goodman burner manifold thread\u003c\/li\u003e\n\u003cli\u003eFits: Goodman GMPN100-4 furnace and cross-compatible models\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM Goodman\u003c\/strong\u003e orifice is machined and stamped to the exact #45 bore and manifold thread, guaranteeing correct gas flow and a leak-free seal. Generic orifices may have inconsistent bores or thread tolerances that alter firing rate and risk gas leaks. For a combustion component, always use the specified OEM orifice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate (3 of 5)\u003c\/strong\u003e — Shut off the gas and power, remove the manifold or burner, unthread the old orifice, and install the new #45 spud. \u003cstrong\u003eVerify the orifice size matches your gas type and altitude, and always leak-test the connection.\u003c\/strong\u003e Gas work should be performed by a licensed HVAC technician where required by code.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058150195571,"sku":"GOODMAN-12099","price":13.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-45-natural-gas-burner-orifice-for-gmpn100-4-b2589345","provider":"National HVAC Parts","version":"1.0","type":"link"}