What Is a PTO in Trucking? Power Take-Off Explained
Learn what a PTO is in trucking, how a power take-off works, what trucks use it, and why it’s essential for dump trucks and other commercial equipment.
Trucking Glossary
Learn the meaning of common trucking terms, abbreviations, acronyms, and industry vocabulary used by professional truck drivers throughout North America.
What Is a Bill of Lading (BOL) in Trucking?
Learn what a Bill of Lading (BOL) is in trucking, why it’s important, what information it contains, and how CDL drivers use it every day.
GCWR Explained: What Every CDL Driver Should Know
Learn what GCWR means, how Gross Combination Weight Rating works, why it matters for CDL drivers, and how it differs from GVWR.
What Is a Pushrod on a Semi Truck?
Learn what a pushrod is on a semi truck, how it works with air brakes, why it matters, and what CDL drivers should inspect before every trip.
Understanding the Fifth Wheel on a Semi Truck
Learn what a fifth wheel is, how it works, why it’s important, and how every CDL driver uses it to safely connect a tractor and trailer.
What Are Glad Hands on a Semi Truck?
Learn what glad hands are, how they work, why they matter, how to connect them properly, and common mistakes every CDL driver should avoid.
What Is a Reefer Trailer in Trucking?
Learn what a reefer trailer is, how it works, what it hauls, and why refrigerated freight is one of the most specialized areas of trucking.
What Is a Tandem Axle? Trucking Term Explained
Learn what a tandem axle is, how it works on semi trucks and trailers, why it matters, and how it affects weight distribution, safety, and DOT compliance.
What Is a Kingpin on a Semi Truck?
Learn what a kingpin is on a semi truck, how it works with the fifth wheel, why it matters, and how to inspect it for safe trailer connections.
What Is a Dump Trailer? A Complete Guide for CDL Drivers
Learn what a dump trailer is, how it works, what it hauls, and how it compares to hopper bottom, flatbed, and lowboy trailers.
What Is a Pigtail on a Semi Truck?
Learn what a pigtail is on a semi truck, what it does, why it’s important, and how to inspect it before every trip.
What Is GVWR? Gross Vehicle Weight Rating Explained
Learn what GVWR means, how Gross Vehicle Weight Rating works, why it matters, and how it affects CDL drivers, truck safety, and DOT compliance.