Caterpillar-style premium aftermarket tooth or wear-system pin. Part reference 132-4766. Size/application: J300 Pin. Matching tooth-system size: J300. Matching retainer reference: 149-5733. 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.