These are aftermarket or factory-installed accessories designed to extend the wheel arches of a Toyota 4Runner. They are typically constructed from materials such as ABS plastic, fiberglass, or metal, and are mounted to the vehicle’s body panels around the wheel wells. An example includes bolt-on or adhesive-mounted units that provide extra coverage beyond the stock fender line.
The addition of these components serves multiple purposes. They can enhance the vehicle’s aesthetic appeal, providing a more aggressive or customized look. Furthermore, they offer practical benefits by protecting the body from road debris such as rocks, mud, and gravel kicked up by the tires. Historically, such enhancements were primarily functional, aimed at off-road vehicles to accommodate larger tires and prevent damage. However, they have since gained popularity as a styling element for on-road vehicles as well.
