RK-351-UB
Rebuild Kit
SAF-Holland

Powerful option for refurbishing a standard fifth wheel/trailer coupling assembly, this kit assembles the critical elements needed to restore core function and reliability after wear or damage to those internal components. By reintroducing correct clearances, seals, and fasteners, it supports the restoration of smooth operation, secure locking, and predictable articulation under load. The kit is designed to fit the UB variant family and OEM-specified geometries, ensuring consistent replacement that preserves alignment, mating surfaces, and load transfer characteristics. Field technicians appreciate the ability to perform a complete refresh without replacing the entire unit, reducing downtime and total cost of ownership while maintaining safety-critical engagement behavior. The VMRS code 059-001-032 anchors maintenance planning and compatibility checks within fleets that standardize on this assembly family. Category context indicates heavy-truck trailer component maintenance, with emphasis on rebuilds that sustain uptime in distribution centers and long-haul operations. Cross references are not present in this data slice; verify compatibility with model year, mounting pattern, and seal bore dimensions from the OEM specification sheets. In practice, this kit helps ensure consistent performance during high-cycle duty, minimizes variability in engagement force, and supports compliance with preventive maintenance intervals.