Unlike a full trailer, a semi-trailer doesn't have a front axle ... to the truck using a coupling system made up of two key parts: the fifth wheel on the truck and the kingpin on the trailer.

Aerodynamic drag affects many parts of semi-trucks, which include the front of the tractor, the top of the tractor, and the sides and underbody of the trailer. One of the most important ways to ...

When Freightmaster expanded its semi-trailer business in the 1990s, Fuwa K Hitch was a prime option for the supply of suspensions and axles.