This kit is new from Ford and OEM. This fits F-Series Super Duty trucks from 2003 to 2007 with the 6.0 diesel. The kit is complete for updating to the BLUE spring. It includes the fuel regulator cover, screws, seals, bushing, and the BLUE spring. Typically the kit helps increase fuel pressure by 5 to 15 psi to help keep air from getting to the fuel injectors (a big reason for injector failure in the 6.0s). Some will notice a smoother quieter idle. Shipping options and costs are available once items are placed in the shopping cart and based on your zip code. USPS Priority International is available for customers outside of the continental US.