RK331AL
Rebuild Kit Fifth Wheel
SAF-Holland

In fleet and shop settings, a rebuild kit for fifth wheel assemblies is a strategic investment in uptime and operator safety. This kit provides a complete set of critical wear components required to restore smooth sliding of the head, secure locking action, and dependable release performance across a range of duty cycles. By addressing common wear items such as the locking interface, pivot points, and associated hardware, the rebuild process returns the unit to near-original feel and timing, reducing the risk of unexpected uncouples and minimizing inspection-driven downtime. The inclusion of matched parts supports consistent engagement force and jaw operation, helping to distribute loads evenly across the coupler and kingpin during high-torque maneuvers. VMRS code 059-001-032 categorizes this within the fifth wheel release and lock family, with 42521 denoting the broader component category. The kit accommodates compatibility with standard OEM and aftermarket systems, but installers should verify model-specific clearances, lubrication intervals, and torque specs. Safety remains paramount; perform the rebuild with the chassis supported, the trailer disconnected, and the appropriate protective PPE. There are no cross references listed for this item.