Cat® Plugs are used to enclose the steel tube openings, which is used as a support for the armrest in operator seats of Cat® Machine. It helps to protect machine and equipment components against damage, dirt, moisture contamination and corrosion. Cat® Plugs are held to the highest standards of quality and reliability. These plugs are manufactured to exact tolerances. Each Cat® Non-Threaded Plug is designed to meet or exceed industry standards, where applicable, for operating pressure and wear protection to ensure a long life and proper machine functionality. They are manufactured to precise specifications and are built for durability, reliability, productivity, strength and quality.Application:Cat® Plugs are used to enclose armrest support tube end in operator seats of Cat® Machine. Consult your owner's manual or contact your local Cat® Dealer for more information.