What is the primary purpose of a trailer hitch?

The primary purpose of a trailer hitch is to connect the trailer to the truck securely. This connection is crucial because it allows for safe towing of the trailer while ensuring that it remains attached during transit. A properly installed and robust hitch provides stability and control, preventing the trailer from swaying or detaching unexpectedly. When the hitch is secure, it also helps in distributing the weight of the trailer appropriately, which is essential for safe driving.

Other options, such as improving fuel efficiency, assisting with braking, or enhancing towing speed, do not capture the fundamental role of a trailer hitch. While these factors can be influenced by proper towing practices and equipment, they are not the main function of the hitch itself.