RYOBI 5500 6500 Watt Gas Generator Carburetor Assembly D262839
EZ- D262839 -00CA. It is compatible with Ryobi Part# D262839. Distance between the center of Two Mounting Holes in the both Front & Rear Ends of Carburetor: 52.4 ± 0.5mm (about 2-1/16 in). You will need it for any warranty service.