If you need a used tractor unit to operate a tipping trailer, walking floor trailer or any other semi trailer that requires hydraulic power, then these pages are perfect for you. All the tractor units on these pages are fitted with a ‘wet kit’ which is a ancillary hydraulic system that takes power from the truck’s transmission via a PTO (Power Take Off) and can be plugged into the trailer that requires the hydraulic power.
You will also see the terms ‘wet pack’ used to describe these trucks. They are often used on high payload, bulk applications, so many will have the lighter weight lift axle and other weight reducing features, such as alloy wheels and a relatively small cab. If you would like to see a wider choice of tractor units, then visit the main all tractor units for sale pages