Features: Premium quality aftermarket products. Helps maintain fuel pressure while idling, driving, or at wide open throttle. (A drop in fuel pressure will damage the fuel injectors.) Maintaining fuel pressure will ensure reliability and maximize performance. Professional installation is recommended and instructions are not included. Specification: Condition:100% Brand New and High Quality Type: Bolt-On Inlet Mounting Type: Thread Direct Replacement Part Number: 3C3Z9T517AG,3C3Z-9T517- : For 2004-2010 E-350 Super Duty 6.0L For 2003-2005 Excursion 6.0L For 2003-2007 Super Duty 6.0L For 2003-2007 Super Duty 6.0L For 2003-2007 F-450 Super Duty 6.0L For 2003-2007 F-550 Super Duty 6.0L Color: Black+Silver Material: Metal Package Contents: 1 x New Governor Housing 1 x New Main Governor Gasket/Seal 1 x New Metered Orifice Jet with Gasket/Seal 1 x Upgraded Blue Style Stainless Steel Spring (Capable of 60+ PSI) 1 x New Piston with Gasket/Seal 1 x New Piston Seat 1 x New Piston Seat O-Ring 2 x