Supporting the efficient operation of the transmission system in field operations, the 419-15-12521 (also formatted as 4191512521) part number Komatsu WA300-1 and WA320-1 transmission gear is designed to steadily maintain torque transmission within the powertrain.
Located in the power train group of heavy-duty construction machinery, this gear component enables the gear ratios to operate flawlessly within the corresponding transmission housing thanks to its tooth profile compatible with the shaft structure. Verifying part compatibility during transmission overhauls of the WA300-1 and WA320-1 models in the Komatsu loader series is one of the most critical steps directly affecting the lifespan of the powertrain.
During part replacement, it must be ensured that the tab structure on the body, the shaft spline dimensions, and the tooth count match the existing system one-to-one. You can review the technical details of this 419-15-12521 transmission gear and the WA300-1 and WA320-1 running gear components it is compatible with.
