Compatible with Ford Powerstroke 6.0L - 2003-2010 - Blue Spring Kit with Banjo Fitting - Includes The Following: 1 New Main Regulator Seal/Gasket 1 Upgraded BlueStyle Spring (Capable of 60+ PSI) 1 New Plunger with Seal/Gasket 1 New Plunger Seat (optional) 1 New Plunger Seat O-Ring (optional) 1 New Metered Orifice Jet with Seal/Gasket 2 New Regulator House Fitting O-Rings 4 New Bolts 1 New Regulator Housing 2 New Fuel Banjo Fitting 4 Fuel Washers The âBlue Springâ upgrade is a low-cost, must-have modification that will increase fuel pressure on your 6.0L. Even simple aftermarket performance upgrades can easily challenge the limits of your stock fuel system. Increasing the fuel pressure will help prevent damage to your injectors and even extend injector life. Common pressure increases can be 10-15PSI as well as increased engine performance, increased driveability and smoother power delivery. FEATURES: Easy Upgrade Increased Injector Life Increased Fuel Pressure Great For Stock & Modified TrucksDK Engine Parts offers a variety of engine parts and kits Compatible with most Powerstroke applications and engine models. Please take a look at what we offer on our website and feel free to call us anytime with questions regarding items listed on our website. Also note that we offer more parts then what is currently listed on our website. If you do not see what you are looking for, please do not hesitate to call us. We have knowledgeable salesmen on standby to assist you with any questions you might have.