OTTO Excavator Parts Zx120 4Bg1 Connecting Rod Bushing 1122510326 112251-0326 1-12251032-6 For Isuzu This OTTO Excavator part, designed for Isuzu engines, specifically the Zx120 4Bg1 model, is a connecting rod bushing with part numbers 1122510326, 112251-0326, and 1-12251032-6. It plays a vital role in maintaining engine performance and durability.