Replace and upgrade the hardware that holds your engine together with Head Studs & Fasteners for your 2017-2025 Ford 6.7L Powerstroke. Upgraded fasteners and head studs are engineered to handle the increased power of your engine with performance components. 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. At XDP, you can find high-quality manufacturers like ARP, Fluidampr, and more who produce head studs, head bolts, flex plate bolts, fuel injector hold down bolts, and more.