This rebuild kit is designed for dual handbrake assemblies commonly used in heavy-duty trucks, industrial equipment, and fleet vehicles requiring reliable and durable brake components. It includes a 3/4 inch piston, seals, pushrod, snap ring, and replacement dust boot assemblies, providing all the essential parts for comprehensive maintenance and repair of your dual handbrake master cylinders. Constructed to meet demanding operational standards, this kit ensures consistent performance and safety in challenging industrial and automotive environments.