Our Power Steering Cooler Kit represents the most well-designed aftermarket product of this nature for your fifth gen Toyota 4Runner. Each one is proudly designed and built in British Columbia, Canada. The design process starts with a combination of advanced 3D scanning and hand measuring to ensure dimensional accuracy. Using 3D scans of the vehicle allows us to create not only a well-fitting product, but also one that works with a variety of aftermarket combinations. Our goal with this product was to create what should have come on your 4Runner from factory. This kit has two main purposes. Firstly, it tucks in the power steering cooler hardlines away from the outside of the frame. This improves both protection and aesthetics when running an aftermarket front bumper like out Phantom One Series (T4R52-01). Secondly, it improves cooling with a 14-1/2” aluminum finned cooler. This is especially important when running aftermarket accessories which may limit airflow. We look forward to your continuing to put our product to the test and cannot wait to see photos from all your adventures. #ARCOneIndustries