Can I install an inner fender on my 4 - runner myself?
Jan 08, 2026
Are you a proud owner of a Toyota 4 - Runner and considering installing an inner fender? Well, you're not alone. Many 4 - Runner enthusiasts are drawn to the idea of enhancing their vehicle's protection and aesthetics by adding inner fenders. In this blog post, we'll explore whether you can install an inner fender on your 4 - Runner yourself, and we'll also introduce you to our high - quality inner fenders designed specifically for 4 - Runners.
Why Install an Inner Fender on Your 4 - Runner?
Before we dive into the installation process, let's first understand why you might want to install an inner fender on your 4 - Runner. Inner fenders serve several important functions. Firstly, they provide an additional layer of protection for your vehicle. When you're driving on rough roads, off - road, or in wet conditions, dirt, mud, gravel, and other debris can be kicked up by your wheels. Without proper protection, these materials can damage the inner components of your vehicle such as the suspension, brake lines, and wiring. Inner fenders act as a shield, preventing this debris from causing long - term harm.
Secondly, inner fenders can improve the overall appearance of your 4 - Runner. They give your vehicle a more finished and refined look. Whether you're using your 4 - Runner for daily commuting or for weekend adventures, a well - installed inner fender can enhance its visual appeal.
Can You Install an Inner Fender on Your 4 - Runner Yourself?
The short answer is yes, you can install an inner fender on your 4 - Runner yourself, but it depends on your level of mechanical expertise and the tools you have available. Here's a step - by - step guide to help you through the process:
Step 1: Gather the Necessary Tools
You'll need a set of wrenches, socket sets, a screwdriver (both Phillips and flat - head), and a trim removal tool. You may also need a drill if your inner fender requires any additional holes to be drilled for installation. Make sure all your tools are in good condition and the right size for your 4 - Runner's components.


Step 2: Prepare Your Vehicle
Park your 4 - Runner on a flat, stable surface and engage the parking brake. Loosen the lug nuts on the wheel where you'll be installing the inner fender, but don't remove them completely yet. Then, use a jack to lift the vehicle safely and secure it with jack stands. Finally, remove the wheel.
Step 3: Remove the Old Inner Fender (if applicable)
If your 4 - Runner already has an inner fender, carefully remove it by unfastening the bolts, nuts, and clips that hold it in place. Use your screwdriver and wrenches for this step. Keep track of all the removed fasteners as you'll need them for the new installation or may need to replace them with new ones.
Step 4: Clean the Area
Once the old inner fender is removed, take the time to clean the area behind the wheel well. Remove any dirt, mud, or debris that has accumulated. A clean surface will ensure a better fit for your new inner fender.
Step 5: Install the New Inner Fender
Align the new inner fender with the mounting points on your 4 - Runner. This may require some patience as you need to make sure all the holes line up correctly. Start by inserting the bolts or clips into the holes and tightening them gradually. Make sure not to over - tighten as this could damage the inner fender or the mounting points.
Step 6: Reinstall the Wheel
After the inner fender is securely installed, place the wheel back on the hub. Tighten the lug nuts in a star pattern to ensure even tightening. Lower the vehicle using the jack and remove the jack stands. Finally, fully tighten the lug nuts to the manufacturer's recommended torque specification.
Step 7: Repeat for the Other Side
If you're installing inner fenders on both sides of your 4 - Runner, repeat the above steps for the other wheel well.
Our Inner Fenders for 4 - Runner
As a leading supplier of inner fenders for 4 - Runners, we offer a wide range of products to suit different model years and specifications.
If you own a 4 - Runner from the years 99 - 02, our Inner Fender Rh Lh for 4 - runner 99 - 02 53875 - 35050 53876 - 35040 is the perfect choice. It is designed to fit precisely and provide excellent protection for your vehicle.
For 4 - Runners manufactured between 14 - 19 with 17'' wheels, our Inner Fender Rh Lh for 4 - runner 14 - 19 (17'' Wheel) 53875 - 35150 53876 - 35150 is specifically engineered to meet the requirements of these models.
If your 4 - Runner is from the 06 - 09 model years, we have the Inner Fender Rh Lh for 4 - runner 06 - 09 53875 - 35100 53876 - 35090. This inner fender is made of high - quality materials to ensure durability and long - lasting performance.
Tips for a Successful Installation
- Read the installation instructions carefully before you start. Our inner fenders come with detailed guides to help you through the process.
- If you encounter any difficulties during the installation, don't hesitate to seek help from an experienced mechanic or refer to online forums and communities where 4 - Runner owners share their experiences.
- Take your time throughout the installation process. Rushing can lead to mistakes that may affect the performance and appearance of your inner fender.
Contact Us for Purchasing
If you're interested in purchasing our inner fenders for your 4 - Runner, we encourage you to contact us for further details and to discuss your specific needs. We are dedicated to providing our customers with the best products and services. We can offer you detailed product information, pricing, and delivery options. Whether you're a DIY enthusiast looking to install the inner fender yourself or a professional mechanic, we have the right solution for you.
Conclusion
Installing an inner fender on your 4 - Runner is a do - it - yourself project that can be accomplished with the right tools, knowledge, and patience. Our high - quality inner fenders are designed to make the installation process as smooth as possible. By adding an inner fender to your 4 - Runner, you'll not only protect your vehicle but also enhance its appearance. So why wait? Contact us today to start the process of upgrading your 4 - Runner with our top - notch inner fenders.
References
- Toyota 4 - Runner Owner's Manual
- Automotive Repair Manuals for Toyota Vehicles
