Caterpillar OEM planetary gear assembly, part number 141-6779, designed for wheel-type skidder drivetrains and compatible with CAT 545C and 545 models. It has an inside diameter of 2-1/2 inches and an outside diameter of 6-3/8 inches, specifications that define its fit within the gear housing. As a planetary gear assembly, this unit transmits rotational motion within the skidder’s drive system and forms part of the reduction gear stage in CAT skidder transmissions.
