Under conditions of regular driving cycles and usage, OE hubs and bearings are expected to last for approximately 100,000 kilometers. It's possible that it's finally time to upgrade and replace your vehicle's wheel and hub bearing assemblies if it's been driven off-road, exposed to salted road situations, or put through heavy-duty use. In these cases, The Centric Wheel Bearing and Hub Assembly are supplied individually, and the price of each assembly covers the cost of all required ABS components, such as tone rings and encoders. All replacement assemblies are fresh, built to meet or exceed OEM specs, and are ready to install.