XA-S924
HD Slide Base
SAF-Holland

Engineered for rugged highway operation and demanding vocational applications, this sliding base forms the critical interface that supports the heavy fifth wheel assembly. It provides a precision‑machined bearing surface and a robust mounting foundation that allows the central wheel to travel smoothly within its designed envelope while resisting side‑to‑side deflection, wear, and corrosion. The base is designed to work with heavy‑duty kingpin platforms, distributing major static and dynamic loads across reinforced surfaces to maintain alignment between tractor and trailer under frequent coupling cycles. Operators benefit from improved hitch alignment, reduced docking effort, and consistent pin‑to‑sleeve engagement across temperature swings and rough road conditions. Built to tight tolerances, it promotes even distribution of lubrication and limits metal‑to‑metal contact during operation, extending service life of sliding components and reducing maintenance intervals. The part includes features that ensure compatibility with standard mounting patterns used in straight‑line and inboard slider configurations, and it is cataloged under VMRS 059-001-045 for service and repair classification. In fleet environments with variable loads, this base contributes to predictable performance, easier inspection, and a lower total cost of ownership by minimizing wear at the most stressed interface of the fifth wheel system.