This rebuild kit is a must - have for your 2011 - 2016 GM vehicle with a 6.6L Duramax V8 engine. Say goodbye to fuel leaks! When your engine burns fuel instead of leaking it, performance soars. This kit includes all the essential seals to fix a leaking fuel filter head. Part Number: 10459. Features: 2 U - shaped seals, 3 internal seals (one is selective and not used), and 1 bleeder screw seal.

Using this fuel filter head rebuild kit is easy. First, make sure your engine is cool before you start. Remove the old fuel filter head carefully. Take out the old seals one by one. Then, install the new seals from the kit in their proper places. The 2 U - shaped seals go in specific grooves, and the internal seals fit inside the filter head. Remember, one of the internal seals is selective and you don't need to use it. Put the bleeder screw seal on the bleeder screw. Once all the seals are in place, re - attach the fuel filter head. As for maintenance, check the seals periodically for any signs of wear or damage. If you notice any fuel leaks again, it might be time to replace the seals. Keep the kit in a dry and cool place when not in use.