OEM & aftermarket fifth wheel coupling from top brands — compare prices, check fitment, order with free delivery
Browse fifth wheel coupling from trusted brands. Compare prices, check vehicle compatibility, and order with fast UK delivery.
A fifth wheel coupling is the primary connection between a heavy goods vehicle (HGV) tractor unit and a semi-trailer. It consists of a horseshoe-shaped plate mounted on the tractor that receives the trailer's kingpin, locking it securely for towing. Proper maintenance and timely replacement of worn fifth wheel components are critical for road safety and compliance with commercial vehicle regulations.
Fifth wheel couplings must be inspected regularly as part of the vehicle's maintenance schedule. Worn components increase play between tractor and trailer, affecting handling and potentially allowing the trailer to separate.
Regular greasing is the single most important maintenance task for a fifth wheel coupling. Insufficient lubrication leads to rapid wear, trailer wander, and coupling failures.