The Oil Rail Leak Repair Kit is a comprehensive solution for combatting oil leaks in the oil rail system of your 6.0L Ford Powerstroke engines. The kit includes a tool for removing and installing the oil rail pucks or ball tubes, as well as replacement O rings for the oil rail. By using this kit, you can repair oil leaks quickly and effectively, helping to protect your Powerstroke engine from further damage. All o rings are made of viton, which is the industry standard for o rings and gaskets in the diesel industry. With a one year, unlimited mileage warranty, you can trust that it is built to last. This is a must-have item for any owner of a 6.0L Ford Powerstroke engine.