Caterpillar-style premium aftermarket tooth or wear-system pin. Part reference 8452PIN. Size/application: Sleeve. Matching tooth-system size: the matching tooth or wear system shown by the part reference. Matching retainer reference: 8452LOCK. 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.