Product Overview The Travel 1st Carrier Assembly with Sun Gear is a planetary gear component designed for the travel reduction gearbox of compatible Hitachi excavators, including the ZX230 and ZX240-1 models. This assembly is used in the first-stage planetary gear mechanism of the excavator final drive system. It is suitable for replacement during travel gearbox maintenance, repair, and overhaul. Product Specifications Product Name Travel 1st Carrier Assembly with Sun Gear