New Diesel Pin On Hydraulic Thumb for 80CL Excavator. Ear Width: 11.6. Cylinder Length: 40″-56″. Productivity at the Forefront. Heavy duty design provides for ease in control, lasting durability, and maximum efficiency. Equipped with a thumb main pin, heavy duty cylinder, factory bushings, and mounting bracket. Available for mini to full size excavators and designed for compatibility with a variety of bucket sizes.