Caterpillar-style premium aftermarket tooth retainer or locking component. Part reference 8E6259. Size/application: J225, J250, J300 Retainer. Matching tooth-system size: J225, J250, J300. Matching pin references: 6Y3228, 8E6258, 9J2308. 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.