4000510
Repair Kit - Lower Coupler Assembly, Fifth Wheel
SAF-Holland

Designed to restore the performance of the lower half of the fifth-wheel coupling, this repair kit supplies the essential wear parts and service components required to bring a previously worn lower coupler back to spec. The assembly enables proper articulation, engagement, and release of the kingpin under load, minimizing play and preventing misalignment during heavy-tow operations. By replacing wear items in targeted maintenance, downtime is reduced and reliability is enhanced across demanding highway environments. The kit aligns with VMRS code 059-001-032, which identifies its role in the fifth wheel linkage and coupling system, and its category placement (42521) anchors it within the broader family of fifth-wheel components. While cross references are not listed in the data, the kit is designed to integrate with standard locking, jaw, and release subsystems already in service on compatible SAF-Holland installations. In practice, technicians gain a predictable, consistent locking and release cycle, reducing binding or mis-engagement during coupling and decoupling, with improvements in safety margins and overall uptime in fleet operations that rely on robust trailer connections.