A fender liner keeps your engine protected from the elements by shielding it against dirt and moisture. When an engine is exposed to these elements, it can retain long-term damage like rust. This can lead to expensive internal repairs. You may even have to get a new car rather than fork over the money for the damage.

Each front wheel has a separate fender liner. Its job is to block dirt, mud, water, environmental toxins, slush in snowy areas, and other impurities from seeping into the engine bay and causing severe corrosion and harm. It also helps protect the wiring and other components inside of the wheel well from corrosion.