Caterpillar (CAT)-style premium aftermarket left-hand bolt-on bucket tooth adapter for the J300 series. Part reference 3G4308. Supports the matching tooth and transfers digging loads to the bucket cutting edge. One-hole mounting configuration. Related retention: pin 107-3308; retainer 8E6259. PETRAX premium aftermarket range for major brands including CAT, Komatsu, Volvo, Hitachi, John Deere, JCB, Case, New Holland, Hyundai, Doosan/Develon, Bobcat, Kubota, Takeuchi and Sany. This item fits only the specified system and matching mounting dimensions.