{"product_id":"oem-goodman-43-burner-orifice-for-amv81155cxbb-b4089343","title":"OEM Goodman #43 Burner Orifice for AMV81155CXBB — B4089343","description":"\u003ch2\u003eGoodman B4089343 Burner Orifice — #43 Drill\u003c\/h2\u003e\u003cp\u003eThe genuine Goodman B4089343 is a #43 natural gas burner orifice (spud) that meters fuel into the in-shot burner on the Amana\/Goodman AMV81155CXBB furnace and related models. The tiny drilled bore sets the gas flow rate for each burner, so a worn, enlarged, or debris-clogged orifice throws off the fuel\/air ratio and produces yellow-tipping, sooting, or short-cycling. Installing the factory-spec orifice restores the correct BTU input and a crisp blue flame.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eType: Threaded burner orifice \/ spud\u003c\/li\u003e\n\u003cli\u003eDrill size: #43\u003c\/li\u003e\n\u003cli\u003eFuel: Natural gas\u003c\/li\u003e\n\u003cli\u003eMaterial: Machined brass\u003c\/li\u003e\n\u003cli\u003eFitment: Amana \/ Goodman AMV81155CXBB furnace\u003c\/li\u003e\n\u003cli\u003eOEM part number: B4089343\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eOEM orifices are CNC-drilled and gauged to the exact #43 bore Goodman engineered for this input rating. Generic orifices can vary a few thousandths of an inch — enough to over- or under-fire the burner and fail a combustion analysis. For a fuel-metering part, always match the OEM spec and never re-drill a used orifice.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy–Moderate\u003c\/strong\u003e — Shut off gas and power, unthread the old orifice from the manifold with a deep socket, thread in the new #43 spud, and verify manifold pressure and flame. Roughly 15–30 minutes; professional recommended.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63057817403763,"sku":"GOODMAN-7706","price":8.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-43-burner-orifice-for-amv81155cxbb-b4089343","provider":"National HVAC Parts","version":"1.0","type":"link"}