Caterpillar-style premium aftermarket tooth retainer or locking component. Part reference 134-1809. Size/application: J800 Heavy Duty Retainer Assembly. Matching tooth-system size: J800. Matching pin reference: 134-1808. 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.