Get the upgraded and replacement hardware you need to repair or assemble the engine in your 2003-2004 Dodge 5.9L Diesel. Head Studs and Fasteners are available for high-performance applications with increased power outputs, as well as OE-style replacements that are engineered to maintain the factory function. Improved fasteners and head studs feature higher tensile strength that ensure they can handle the increased performance and power of your engine. Find the Head Studs, Head Bolts, Flex Plate Bolt, Fuel Injector Hold Down Bolts, and more from high-quality manufactures such as ARP, Fluidampr, and more at XDP.