What is a fender liner?

A fender liner, also known as a splash guard or inner fender, is a protective cover that is installed inside the wheel well of a vehicle. It is designed to prevent dirt, mud, and debris from entering the engine compartment or other parts of the vehicle's undercarriage. Fender liners are typically made of plastic or rubber material and are molded to fit the specific shape of the vehicle's wheel well. They are commonly found on most modern vehicles, including cars, trucks, SUVs, and other automobiles. Some fender liners also include sound insulation material to mitigate road noise and improve overall driving comfort. Overall, fender liners play an important role in protecting a vehicle from damage caused by debris and improve its longevity and performance.