The ADB22X Full Caliper Overhaul Kit is a complete repair solution for truck and trailer air disc brake systems. Designed to restore braking efficiency, this kit includes all key wear components such as tappet kit (69 mm), guide pin kit, lever, bridge, bearing set, and seals. Compatible with Peterbilt, Freightliner, Hendrickson, and SAF axles, it ensures precise fit and long-lasting reliability. Whether used in fleet maintenance or individual repairs, this all-in-one kit saves time, reduces downtime, and guarantees OEM-level performance and safety on the road.