1034659 Original Loader Gearbox Gears for ZW220

Part number 1034659 is the original gearbox gear specially designed by Hitachi for the ZW220 wheel loader. This component is the core transmission element inside the gearbox or drive axle, responsible for transmitting power and changing speed ratios. Its universal model is this part number, mainly used for the ZW220 model. Based on the similarity of transmission platforms, it is also applicable to models of the same series with the same tonnage and gearbox design (such as ZW180, ZW250).

This product is a transmission gear precision forged from high-strength alloy steel. The gear body is a dull steel gray color, and the surface is covered with staggered precision milling textures, which are traces of high-precision manufacturing. Adopting a conical tooth design to ensure smooth meshing and efficient power transmission. The center is a precision machined internal key hole, used to achieve high torque connection with the transmission shaft without slip. Its material has undergone heat treatment processes such as carburizing and quenching, resulting in extremely high tooth surface hardness and excellent wear resistance and fatigue strength.

Daily maintenance: Strictly replace the designated heavy-duty gear oil according to the prescribed cycle in the manual (usually every 2000 hours), clean the magnetic oil drain plug, and judge the wear condition based on the adsorbed iron filings. Fault diagnosis: If there is abnormal noise, gear shift or a large amount of metal debris in the oil of the gearbox, the gear needs to be disassembled and inspected. Timing of replacement: When there is severe peeling, pitting, tooth breakage, or excessive wear on the tooth surface, the meshing gears must be replaced in pairs.