"This is a replacement Bearing Kit for Trailer Axles, we offer several different choices for bearing kits depending on the type of axle you are using. Each kit will have the necessary bearings, races, dust caps and cotter pin for the specific sizes trailer axle. We also offer these kits in a EZ Lub Dust Cap and a Steel dust cap variation. Please be sure to choose the correct size bearing kit for your application needs, we have 2K, 3.5K, 6K, 7K, 8K, & 10K variation options. Here at M-Parts Auto we pride ourselves on offering our customers a one stop shop to find their trailer parts and replacement parts, whether it is a new set of brakes or drums or even replacement leaf springs or hanger kits, rest assured you will be able to reach a live customer representative to help with any questions you may have, please feel free to reach out to us for any questions regarding our product or any business need! We have set he standard and our mark within this industry, we will always pride ourselves in our ability to separate ourselves from our competition!"