Semi vs Tractor Trailer: Key Differences for Logistics
Understanding the Core Differences: Semi-Truck vs. Tractor-Trailer Let's clarify the often-confused terms "semi-truck" and "tractor-trailer." A semi-truck, also known as a tractor unit, is the power unit—the engine, cab, and chassis. It's the vehicle that does the pulling. A tractor-trailer, on the other hand, is the complete combination: the semi-truck plus one or more trailers carrying the cargo. It's the entire transportation unit ready to hit the road. Think of it as the difference between an engine and a complete car....