FW70K312ZL03
Fifth Wheel Assembly
SAF-Holland

This fifth wheel assembly applies a standard Kompensator-based design to deliver a balance of load-carrying capacity and dynamic smoothing essential for heavy-duty towing. The compensator mechanism absorbs vertical shocks and torsional input from the trailer, reducing wear on the saddle and pins while enhancing predictability of trailer articulation. Operators benefit from improved coupling stability, reduced cab vibration, and more precise tongue alignment during load transfer, even on degraded or uneven pavement. VMRS coding (059-001-135) provides a consistent framework for maintenance planning, parts replacement, and diagnostics across fleets that rely on common interchange data. Situated within the heavy-duty category, the unit is engineered for high-cycle coupling scenarios and long service life under demanding payloads. While cross-reference data is not provided for this variant, its compatibility with standard tractor-frame interfaces in the 42518 family supports broad applicability across regional and long-haul operations. In service, technicians will appreciate predictable wear characteristics, straightforward inspection routines, and a design that prioritizes reliability and uptime in challenging operating environments.