Flashcard 10 - Combination Vehicles Flashcard Set for the CDL
Back
The kingpin is the device that protrudes downward from the underside of the front of the trailer. The kingpin slides into the fifth wheel and is locked in place by the fifth wheel jaws. This serves as the pivot point between the tractor and trailer, allowing a combination vehicle to make turns.
All Flashcard Sets for the CDL are now available as downloadable PDFs