If you've ever been stuck behind a slow-moving semi-truck with nothing to do, you may find yourself wondering what the little door on the trailer is for.

It can't be used for loading or unloading, so what purpose does it serve? According to Central California Truck and Trailer Sales, the door on the back of semi-trailers is used for ventilation and ...

A tyre pressure maintenance system is a value added improvement for your trailers and business, helping operators save money and remain competitive.

NORMAL, Ill. (WMBD) — No injuries were reported after a semi-trailer at a southern loading dock at Rivian caught fire on Monday. According to a Normal Fire Department news release, firefighters ...

Elon Musk says Tesla's new Semi trucks are BAMFs ... That's the cab by itself or with an empty trailer loaded on. Once you add a load of freight, like the maximum U.S. highway-legal load of ...