OTTO Excavator Parts Cxh50S 6Wa1 Connecting Rod Nut 1122390056 112239-0056 1-12239005-6 For Isuzu This product is a connecting rod nut designed for the Cxh50S 6Wa1 model of OTTO excavator parts, specifically for Isuzu engines. It ensures secure fastening and stability of the connecting rod within the engine assembly, aiding in optimal engine performance and longevity.