IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The B4089343 is a genuine OEM Goodman burner orifice (spud), drilled to a #43 bore, engineered for the AMV81155CXBA modulating gas furnace. Each orifice meters the precise volume of gas delivered to its burner, so using the factory-correct drill size is essential for a clean flame, proper input rating, and safe combustion. This part is a direct-fit replacement — no re-drilling or adaptation required.
Our genuine OEM Goodman orifice is bored and gauged to factory tolerance, guaranteeing the exact fuel metering your furnace was certified for. Generic orifices often vary in bore diameter, which can cause sooting, delayed ignition, or an out-of-spec input rating. For a combustion component, OEM is strongly recommended.
Easy — a technician can swap the orifice with a wrench in minutes. Always shut off gas and power before servicing, and verify the burner flame after installation.