Have you ever noticed the black plastic covers right above your car’s back wheels and wondered what they’re called? These small parts might seem unimportant, but they actually play a big role in protecting your vehicle and keeping it looking sharp.
If you’re curious about their name, purpose, and why they matter for your car’s health, you’re in the right place. Keep reading to uncover the secret behind those black plastic covers and learn why you should pay attention to them.
Name Of Black Plastic Covers
Black plastic covers above the back wheels protect your vehicle from dirt. They also prevent mud, stones, and water from splashing onto your car. These covers help keep the body clean and reduce damage from road debris.
Many people wonder what these black plastic parts are called. The name varies by region and car type. Understanding the correct terms helps when buying or repairing parts.
Common Terms Used
Most people call these covers “fender flares” or “wheel arch liners.” Fender flares are wider and often added to change the look of a car. Wheel arch liners fit inside the wheel well to block dirt and water.
Other common names include “mudguards” and “splash guards.” These terms highlight the covers’ role in protecting the car from mud and splashes. Some call them “wheel well covers,” which is a simple, clear name.
Regional Variations
The name changes depending on the country or region. In the United States, “fender flares” is the popular term. In the UK, people often say “mudguards” or “wheel arch trims.”
Australia uses “guards” or “mud flaps” for similar parts. In some areas, terms like “arch liners” or “wheel guards” are common. Knowing these variations helps when discussing car parts worldwide.

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Purpose Of The Covers
The black plastic covers above the back wheels serve several important purposes. These covers protect parts of the car from damage and keep it looking neat. They also help improve the car’s performance in small but useful ways.
Protection From Debris
The covers stop dirt, stones, and mud from hitting the car’s body. This reduces scratches and dents around the wheel area. They also help keep the car cleaner by blocking mud splashes. This protection extends the life of paint and parts near the wheels.
Aesthetic Appeal
These covers give the car a finished and neat look. They hide the wheel well’s rough edges and metal parts. The smooth, black plastic creates a uniform appearance. This makes the car look newer and well-maintained.
Aerodynamic Benefits
The covers help air flow smoothly around the wheels. This reduces air drag and improves fuel efficiency slightly. Better aerodynamics can also improve vehicle stability at higher speeds. Small changes that add up for better driving.
Materials And Design
The black plastic covers above your back wheels protect your vehicle from dirt and damage. These covers are not just simple pieces of plastic. Their materials and design help them work well and last long. Understanding these parts can help you know why they look and feel the way they do.
Types Of Plastics Used
Most wheel covers use strong, flexible plastics. Polypropylene is common because it resists cracks and bends easily. ABS plastic is another popular choice. It is tough and holds its shape well. These plastics also resist heat and weather. They stay durable even in rain or sun. This helps the covers protect your wheels longer.
Design Styles And Shapes
Wheel covers come in many shapes and designs. Some are smooth and simple. Others have grooves or patterns for style. The shape often matches the car’s look. Rounded edges help avoid scratches and damage. Some designs improve airflow around the wheels. This keeps brakes cooler and improves safety. Every design balances protection and style.

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Installation And Maintenance
The black plastic covers above your back wheels protect your vehicle from mud, dirt, and damage. Proper installation and regular care keep these covers effective. This section guides you through installing, cleaning, and repairing these covers. Follow simple steps to keep them in good shape.
How To Install
Start by lifting the vehicle or turning the wheel for better access. Align the plastic cover with the wheel well holes. Use screws or clips to attach the cover firmly. Tighten all fasteners evenly to avoid gaps. Check that the cover fits snugly without rubbing the tire. Installation usually takes 15 to 30 minutes.
Cleaning Tips
Rinse the covers with water to remove loose dirt. Use a soft brush or cloth with mild soap. Avoid harsh chemicals that can damage the plastic. Clean regularly to prevent buildup of mud and grime. Dry the covers completely to stop mold or mildew. Clean covers last longer and keep your vehicle looking neat.
Repair And Replacement
Inspect the covers for cracks or broken clips often. Small cracks can be fixed with plastic adhesive or tape. Replace covers if damage is severe or mounting points fail. Use original or compatible parts for best fit. Timely repairs prevent further damage to your vehicle. Keep spare fasteners to replace lost or broken ones.
Variations By Vehicle Type
The black plastic covers above the back wheels vary by vehicle type. Each vehicle uses a specific style and shape. These covers help protect the wheel area from dirt and damage. They also add to the vehicle’s look. Understanding these differences can help identify the right cover for your vehicle.
Cars
Cars usually have smooth, curved plastic covers. These fit closely around the wheel well. They protect the car’s body from mud and stones. The covers often match the car’s color or are black. They improve the car’s aerodynamics and style.
Trucks And Suvs
Trucks and SUVs have larger, more rugged plastic covers. They are wider to cover bigger wheels. These covers shield the vehicle from rough terrain debris. Many covers feature textured surfaces for extra strength. They also give a tough, off-road look.
Bicycles And Motorcycles
Bicycles and motorcycles use smaller black plastic covers called fenders. These fenders block water and mud from splashing. They are lightweight and shaped to fit the narrow wheels. Fenders help keep riders clean and dry during rides.

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Aftermarket Options
The black plastic covers above your back wheels are called fender flares. Many drivers choose aftermarket fender flares to improve their vehicle’s look and function. These options offer variety in style and material. Aftermarket parts often fit many car models. They protect your car from mud and debris. They also enhance the vehicle’s appearance.
Customization Choices
Aftermarket fender flares come in different shapes and sizes. Some are wide and bold, while others are slim and sleek. You can find smooth or textured finishes. Colors vary from black to painted options. Materials include plastic, rubber, and fiberglass. Some kits include hardware for easy installation. Custom fender flares can give your car a unique look. They also help protect your vehicle’s body from damage.
Popular Brands
Several brands lead in aftermarket fender flares. Bushwacker is known for durable and stylish flares. EGR offers affordable, easy-to-install options. Rugged Ridge makes heavy-duty flares for off-road vehicles. AVS produces sleek, aerodynamic designs. Each brand has different features and price points. Choose based on your car model and style preference. Quality brands ensure a good fit and lasting use.
Frequently Asked Questions
What Is The Black Plastic Cover Above Back Wheels Called?
The black plastic cover above back wheels is called a fender or mudguard. It protects the vehicle from mud, water, and debris. It also prevents damage to the wheel and surrounding parts.
Why Do Vehicles Have Black Plastic Fender Covers?
Vehicles use black plastic fender covers to shield against dirt, rocks, and water spray. They improve safety by reducing debris thrown from the tires. These covers also enhance the vehicle’s appearance and protect the paintwork.
Are Black Plastic Covers Above Back Wheels Important?
Yes, black plastic covers are important for protection and safety. They prevent mud and debris from hitting other vehicles or pedestrians. They also help maintain the vehicle’s cleanliness and reduce corrosion on metal parts.
Can Black Plastic Fender Covers Be Replaced Easily?
Yes, black plastic fender covers can be replaced easily. They are usually attached with screws or clips for quick removal. Replacement parts are widely available and affordable for most vehicle models.
Conclusion
The black plastic covers above your back wheels are called fenders. They protect your vehicle from mud, water, and dirt. Fenders keep your car cleaner and safer on the road. They also help prevent damage to the paint and body.
Knowing their name helps when you need repairs or replacements. These simple parts play an important role in your vehicle’s care. Next time you see them, you’ll know exactly what they are. Small details make a big difference in car maintenance.