Cat 3P-1626 Transmission Clutch Hub is a Caterpillar hub assembly used inside Cat planetary transmissions to engage and disengage gears within the planetary gear set, enabling smooth transmission changes. Cataloged as Hub A (3P-1626) in Cat Classic Parts literature, it represents a dedicated clutch hub component within the Cat clutch/brake hub family. As a key element of the transmission’s torque path, the hub interfaces with the clutch assembly to control gear engagement across multiple gear stages. The 3P-1626 designation identifies this specific Cat transmission hub, ensuring accurate identification in CAT SIS parts catalogs and official Cat catalogs for correct compatibility.
