RK351UB1
Rebuild Kit XA-351-UB
SAF-Holland

This comprehensive repair kit is designed to restore the performance of a critical fifth wheel interface after service intervals. It consolidates wear parts needed to reestablish proper fit and function, supporting accurate alignment and smooth operation during coupling and uncoupling. By matching factory tolerances, it helps preserve essential clearances, lubrication pathways, and load transfer characteristics that are critical to safe towing. The VMRS code 059-001-032 places this kit within a standardized maintenance category and ensures traceability in shop and fleet processes. Classified under the fifth wheel category (42521), it is intended for assemblies that manage kingpin engagement and heavy load transfer in tractor trailers. Typical applications include complete overhauls in fleet repair shops or field service where restoring original geometry reduces the risk of misalignment and accelerated wear. Benefits include reduced downtime, lower lifecycle maintenance costs, and improved reliability under dynamic loading. Cross references are not listed for this item, underscoring its role as a standalone rebuild option that aligns with common fifth wheel maintenance procedures and technician workflows.