Used in high-strength areas of heavy equipment undercarriages and powertrains, the component with part number 20Y-27-2122 is designed to operate under severe field conditions. In this context, the 20Y-27-2122 Komatsu Final Drive Pinion plays a critical role in the lower chassis and drive mechanisms of excavator series. During installation, paying attention to housing cleanliness and thoroughly checking lubrication channels are among the factors that directly affect the operating life of the powertrain components.
Such shafts, which operate in final drive gear groups and reducer structures in heavy-duty machinery, work under high radial loads. During replacement procedures, it is of great importance that the shaft diameter dimensions and locking hole positions fully comply with original tolerances for smooth power transmission.
You can check your machine's serial number to get clear information regarding excavator series compatibility and the 20Y272122 code.
