FWS1X600XL00
Fifth Wheel Assembly
SAF-Holland

A complete towing interface assembly designed for seamless integration into heavy-duty coupling systems. The fifth wheel assembly provides the essential pivot point, locking mechanism, and saddle interface required for secure connections between tractor and trailer. The system is categorized for use in towing and steering subsystems, aligning with VMRS code 059-001-135 to support maintenance planning and parts hierarchy within fleet management. Benefits include a robust bearing surface, precise centerline alignment, and a uniform load path that reduces localized stress concentrations on both the tractor and trailer mating surfaces. This assembly is especially important for fleets that demand predictable disengagement forces, consistent coupling performance in variable weather, and long-term durability under repeated engagement cycles. Compatibility considerations depend on saddle type, mounting patterns, and the tractor’s frame geometry. Practical applications span general over-the-road transport and harsh-duty operations where reliable hitch performance and straightforward serviceability are prioritized, with routine inspection recommended to monitor wear indicators and lubrication needs in the neck region of the assembly.