Have you ever noticed a big plastic scoop underneath a semi-truck while driving down the highway? It actually serves a very ...

Building a Lego Semi-Trailer Tanker Truck is an exciting and rewarding project that combines both creativity and engineering. In this comprehensive guide, we will walk you through the step-by-step ...

The kingpin is located underneath the front axle of a semi-trailer. It's a small, sturdy metal pin that typically comes in two standard sizes: 2 inches and 3.5 inches.

If you've ever looked closely at an empty flatbed semitruck trailer, you might have noticed a pronounced bend in its shape. So why do flat trailers look curved?