What is the semicircular plastic above the car tire called?
3 Answers
The semicircular plastic above the car tire is called the fender. Below is relevant information about the fender: 1. Introduction: The fender, also known as the wing panel, is divided into front fender and rear fender based on its installation position. It is a type of covering component on motor vehicles and non-motor vehicles. 2. Installation Position: The fender is located on the outer side of the wheel on the car body. The front fender is installed at the front wheel and must ensure the maximum space for the front wheel's rotation and movement. Therefore, designers use the "wheel movement diagram" based on the selected tire model size to verify whether the fender's design dimensions are appropriate. The rear fender does not have the issue of wheel rotation interference, but for aerodynamic considerations, it is slightly arched and protrudes outward. 3. Function: According to fluid dynamics, it reduces the drag coefficient, making the car drive more smoothly. The front fender prevents gravel and mud splashed up by the wheels during driving from reaching the bottom of the car body, reducing damage and corrosion to the chassis.
As someone who frequently commutes by car, that semi-circular plastic piece above the tires is commonly referred to as a "wheel arch liner" or "fender liner". It wraps around the tire and plays a crucial role in dust and water protection. When driving in the rain, splashing mud can easily dirty the car body, but this liner blocks most of the grime, preventing the wheel arch from rusting while also reducing driving noise for a quieter cabin. If it becomes damaged, aged, or falls off, stones kicked up by the wheels can damage the chassis and compromise safety. Last time I inspected my car and noticed slight cracks in it, I promptly went to a repair shop to replace it with an original part—it didn’t cost much. Remember to check its sturdiness during routine maintenance, especially after high-speed driving, as deformation could increase wind resistance and fuel consumption. Though small, maintaining it properly can extend the vehicle’s lifespan—never overlook it.
That semicircular plastic piece above the tire is called a "wheel arch liner" in the industry, and we commonly refer to it as a fender liner while driving. Its main function is to protect the wheel arch area from moisture, stones, and prevent corrosion of the car body. I often drive long distances and once encountered it becoming loose, which caused increased abnormal noise and discomfort, forcing me to stop and check. If the liner accumulates dust or snow and isn't cleaned in time, it can accelerate the rusting process. It's recommended to clean the gaps of the fender liner during each car wash to keep it dry. If it's damaged, replacing it is simple and shouldn't be delayed. This component is ingeniously designed to buffer road impacts, reduce wear, and significantly improve driving comfort.
