HSK5967C-CS Competition 625 Series Head Stud Kit

Features:

• Fits 1998.5-2024 5.9L and 6.7L Cummins
• Competition grade 625 Series studs
• Ultra high strength 625+ alloy
• Superior clamping force over stock bolts
• Prevents head lift and gasket failure
• Ideal for high boost applications
• Suitable for street, tow, track
• Will not stretch like OEM bolts
• Thread rolled after heat treat
• Black oxide corrosion resistant finish
• Even load distribution across cylinder head
• Includes studs, nuts, washers, lube

Lock Down Serious Boost With Confidence That Holds

When you start pushing real power through your 1998.5-2024 RAM 2500 or 3500 Cummins, the factory head bolts quickly become the weak link. The Gator Fasteners Competition 625 Series Head Stud Kit is built for owners who are not interested in cutting corners when it comes to reliability. Whether you are running compounds, a larger single turbo, or aggressive tuning, these studs are designed to keep the cylinder head clamped down tight under extreme cylinder pressure. They deliver superior clamping force compared to OEM bolts, helping prevent head lift and costly head gasket failures. This makes them a smart upgrade for everything from heavy towing builds to dedicated track trucks. Additionally, they are ideal for moderately to heavily built engines that see high boost and high horsepower on a regular basis. If you are investing in power, it only makes sense to invest in the hardware that keeps it together.

Engineered 625 Plus Alloy Strength For Extreme Cylinder Pressure

At the core of this kit is ultra high strength 625+ alloy material, selected specifically for high performance diesel applications. Each stud is heat treated and then thread rolled after heat treat, a process that enhances fatigue strength and ensures consistent clamping load under repeated stress. Unlike factory head bolts that can stretch over time, these studs maintain their integrity and provide even load distribution across the cylinder head. That even clamping force is critical for maintaining head gasket seal when boost and combustion pressures climb. Furthermore, the black oxide finish adds corrosion resistance, helping protect the hardware in harsh engine bay environments. The kit includes a complete set of 625 Series studs, nuts, washers, and assembly lubricant so you have everything needed for installation. For 5.9L and 6.7L Cummins owners who demand durability under serious power, this head stud kit is built to meet the challenge.

 Fitment: 1998.5, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 Dodge RAM 2500/3500 5.9L/6.7L Cummins

Notes:

• Fits 1998.5-2024 5.9L and 6.7L Cummins.
• Recommended for high boost applications.
• Not necessary for completely stock engines.
• Professional installation strongly recommended.
• Proper torque procedure must be followed.
• Engine machining may be required on builds.
• Ideal for built or modified engines.
• Includes required installation lubricant.
• Head gasket condition should be verified.
• Designed for extreme cylinder pressure loads.
• Corrosion resistant black oxide finish.
• Competition grade hardware for serious builds.