{"product_id":"oem-goodman-43-burner-orifice-for-gmpe100-4a-b4089343","title":"OEM Goodman #43 Burner Orifice for GMPE100-4A — B4089343","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman B4089343 Burner Orifice (#43 drill size)\u003c\/strong\u003e is a genuine OEM part for the \u003cstrong\u003eGMPE100-4A\u003c\/strong\u003e gas furnace. The orifice (spud) meters the precise flow of gas into each burner, setting the correct air-fuel mixture for clean, efficient combustion. A worn, clogged, or incorrectly sized orifice causes lazy yellow flames, sooting, delayed ignition, and reduced heating output.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e B4089343\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Burner orifice \/ gas spud\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrifice Size:\u003c\/strong\u003e #43 drill size\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Machined brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel:\u003c\/strong\u003e Natural gas (verify size against your rating plate)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment:\u003c\/strong\u003e Goodman gas furnace (GMPE100-4A)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit:\u003c\/strong\u003e Direct OEM replacement, factory-drilled thread\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe genuine \u003cstrong\u003eOEM B4089343\u003c\/strong\u003e is precision-drilled to the exact #43 bore Goodman specifies for this furnace's input rating, so combustion stays within spec. An incorrectly sized generic orifice over- or under-fires the burner, wasting fuel and risking carbon monoxide production. Never guess on orifice sizing — OEM guarantees the correct gas flow.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate — gas-line work.\u003c\/strong\u003e Around 30–45 minutes. Shut off gas and power, remove the manifold\/burner assembly, thread out the old spud, install the new orifice, and reassemble. \u003cem\u003eA combustion analysis and leak check are strongly recommended.\u003c\/em\u003e If you are not experienced with gas appliances, this repair should be performed by a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058139611507,"sku":"GOODMAN-11979","price":5.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-43-burner-orifice-for-gmpe100-4a-b4089343","provider":"National HVAC Parts","version":"1.0","type":"link"}