A 4x4 truck is a type of vehicle designed for off-road driving and rugged terrain. The term "4x4" refers to the four-wheel drive system, which allows all four wheels to receive power from the engine. This feature enhances traction and stability, making it easier to navigate through mud, snow, or rocky surfaces. These trucks are often equipped with higher ground clearance and durable tires, which contribute to their ability to handle challenging conditions. Many 4x4 trucks also come with additional features like skid plates and locking differentials, further improving their off-road capabilities and making them popular among outdoor enthusiasts.