OTTO Excavator Parts Ex400-5 6Rb1T Connecting Rod 1122301886 112230-1886 1-12230188-6 For Isuzu This OTTO Excavator part, the Ex400-5 6Rb1T Connecting Rod with part number 1122301886, is designed for Isuzu engines. It plays a critical role in connecting the piston to the crankshaft, ensuring smooth engine operation.