Hensley-style premium aftermarket bucket tooth adapter for the X156 Parabolic series. Part reference 550X156. Supports the matching tooth and transfers digging loads to the bucket cutting edge. Retention option: Hensley Parabolic pin P156. 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.