Caterpillar-style premium aftermarket tooth or wear-system pin. Part reference 2K6413. Size/application: 44.4mm Outer Diameter Cross Hole Pin. Matching tooth-system size: the matching tooth or wear system shown by the part reference. Matching retainer reference depends on the installed system generation and is not separately identified in this catalog. Secures the replaceable tooth, protector or ripper component to its matching adapter. Brand compatibility: Caterpillar and premium aftermarket systems built to the matching Caterpillar specification. This hardware fits only the specified system and matching dimensions.