the assembly is made in standards and the working performance is stable and perfect.
and the device also fit to some other models of excavators, you can check with the given dimensioin as well as the part number to see it may fit many machines in the final drives or transmissions.Excavator Sun Gear 6i-6515 6i-6518 6i6515 6i6518 Centro ingranaggio per il riduttore di trasmissione finale Fit E311 Cat311 311 E311b please refer to the given size and the ps to check more compatible models. excavator spare parts including bearings, gears, seal kits, engine parts, motors, pumps, solenoids, valves, etc.