XA-201-A-L-P
Fifth Wheel Top Plate
SAF-Holland

This top plate assembly represents the upper interface of the fifth wheel carriage, providing the critical surface for kingpin engagement and load transfer between tractor and trailer. The top plate supports even distribution of loads, reduces concentrated stress, and contributes to smooth articulation through its machined bearing surface and alignment features. In SAF-Holland’s ecosystem, the category 42763 includes core fifth wheel components and top-plate platforms, ensuring compatibility with multiple base plates, locking rings, and mounting patterns across different model years. VMRS 059-001-001 correlates to the top-plate function within the maintenance data, enabling precise identification for repair and replacement scheduling. The part is designed for heavy-duty use, frequent coupling, and high-cycle operations, including long-haul and construction applications where reliable kingpin engagement is essential for safety and uptime. When selecting a replacement, technicians should verify hole patterns, bolt circle diameter, and mating surface tolerances to ensure proper fit with the corresponding fifth wheel housing and locking mechanism. Proper lubrication and surface cleanliness are critical at installation to maximize service life and minimize wear on the kingpin interface.