What Is the Back of a Semi Truck Called?

The back of a semi truck is also known as a trailer. It is the end piece of the truck that carries goods and cargo from one place to another. The trailer is generally made up of two parts, the body and the frame. The body is where the cargo is stored and it is usually made out of metal, plastic or fiberglass. The frame provides the structure for the body and it is generally made out of metal such as steel or aluminum.

The trailer typically has several doors that can be opened to gain access to the cargo inside.

These doors are also known as “roll-up” doors as they roll up instead of swinging open like most other doors do. Inside, there are dividers which separate different types of cargo so that they can be easily identified and accessed when needed.

When a semi truck is in motion, it has a fifth wheel mounted on its frame near the back. This fifth wheel helps connect the trailer to the tractor unit at an angle which ensures that all parts move together when in motion. Additionally, there are also several lights mounted on both sides of the trailer which help alert motorists when there are changes in speed or direction.

In addition to transporting goods from one place to another, semi trucks can also be used for moving large objects such as boats or cars from one location to another. To do this, a tow bar must be attached between the tractor unit and trailer allowing them to move together as one unit.

Conclusion:
The back of a semi truck is called a trailer, composed of two parts – body and frame – with roll-up doors that provide access to cargo inside while it’s in motion. A fifth wheel connected between tractor unit and trailer helps ensure all parts move together while several lights help alert motorists when there are changes in speed or direction. Semi trucks can also be used for moving large objects with a tow bar attached between tractor unit and trailer allowing them to move together as one unit.

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Stephen Dunn