XA331A1M-L-P
Top Plate
SAF-Holland

This top-plate variant maintains the essential contact interface while emphasizing safety labeling and compliance in addition to structural integrity. The surface geometry ensures proper kingpin seating, consistent locking engagement, and even distribution of wheel-end loads through long service lives. The no-lubricant approach reduces routine maintenance needs while delivering dependable friction behavior across diverse climates, which is especially valuable in fleets operating in remote or extreme conditions. The component is designed for compatibility with a broad spectrum of fifth-wheel implementations that follow established mounting patterns, supporting efficient interchangeability across OEM and aftermarket supply chains. VMRS 059-001-001 anchors the description within the standard top-plate family, while Category context reinforces its role as a principal load-transfer element in heavy-truck coupling systems. The combined benefits include improved uptime, easier inspection routines, and sustained performance under high-cycle coupling operations typical in regional and long-haul trucking.