The OTR Wheel Hub with ABS Ring is made from high carbon alloy for maximum durability and strength. It is also coated with different materials to protect it from corrosion and rust. The pilot diameter of 8-3/4" is an important feature to consider when choosing a wheel hub assembly for your vehicle. This wheel hub assembly is designed to provide superior performance and reliability. It is easy to install and comes with all the necessary hardware for a hassle-free installation. The wheel hub is designed to provide superior performance and reliability, and is easy to install, making it the perfect choice for your vehicle. FleetPride is your First Click in Heavy Duty®.