Upgrade the bottom end of your 2003-2007 Dodge 5.9L Common Rail Cummins Diesel engine with the Gator Fasteners HD220 Heavy Duty Main Stud Kit (MSK59CR).

Engineered from Gator's proprietary HD220 alloy, these main studs deliver industry-leading tensile strength (over 220,000 PSI), providing superior clamp load and fatigue resistance compared to ARP's 8740 chromoly main studs. This ensures your main caps and block girdle remain secure, preventing cap walk and bottom-end failures in high-performance, towing, or daily-driven applications.

This kit is specifically designed for 24V Common Rail 5.9L engines equipped with the factory block stiffener/girdle. It includes (14) heavy-duty 10mm bolts to secure the girdle to the block, as well as shorter 12mm main stud nuts to provide the necessary clearance for the factory girdle.

The black oxide finish offers excellent corrosion protection, and each stud is precision-machined for a direct fit.

Vehicle Compatibility: Fits 2003-2007 Dodge Ram 2500/3500 5.9L Common Rail Cummins Diesel engines with the factory block girdle/stiffener. Please verify your truck is equipped with the OEM girdle before purchase.

• HD220 High-Strength Material - Proprietary HD220 alloy delivers 220,000+ PSI tensile strength, outperforming ARP's 8740 chromoly main studs
• Factory Girdle Compatibility - Specifically engineered for 2003-2007 Dodge 5.9L Common Rail Cummins engines equipped with the OEM block stiffener/girdle
• Complete Kit - Includes (14) heavy-duty 10mm bolts for securing the block stiffener and shorter 12mm main stud nuts for additional clearance
• Superior Clamp Load - Prevents main cap walk and bottom-end failures under high horsepower, towing, or racing
• Corrosion Resistant - Black oxide finish protects against rust and harsh diesel environments
• Gator Fasteners Quality - Backed by Gator Fasteners' commitment to reliability and performance - Nothing Bites Like Gator