This is a complete kit to install the 6.0 Powerstroke engine . It comes with everything that should be replaced during the replacement of the engine . It also makes a great maintenance kit for your 6.0 engine 2003-2010. If you are buying this to install with one of our engines please contact us prior to shipping we can include it with your engine and save you the shipping. If you are buying this for a maintenance kit for your engine please email or call us (779) 220-9911 with your application . This kit is designed for a single alternator with a mono front . If you have the dual alternator or twin I Beam we can substitute the correct parts for a small up charge .