XB11025
Grooved Pin, Fifth Wheel
SAF-Holland

Grooved alignment pin intended for the fifth-wheel interface. With a one-inch length and a 0.38-inch diameter, it serves as a precise locating element in the king-pin housing or slug area, where grooves mate with corresponding locking pockets or detents. The grooves promote a secure seating and help resist longitudinal movement under load, supporting repeatable hookups across multiple cycles. The category context (42784) places this component within the same family as other hitching and coupling fasteners. VMRS 059-001-008 classifies it among safety-critical alignment devices used in heavy-truck to trailer interfaces. In practice, maintenance technicians insert the pin to align the king-pin with the fifth-wheel plate before locking; it is designed for compatibility with standard SAF-Holland mating hardware and with common high-strength fasteners used in the interlock system. As always, inspect for wear or burrs on the grooves and replace if the fit tightens or the motion becomes rough. Cross references: none listed.