Building or strengthening your 5.9L Cummins diesel? This ARP main stud kit is a top-shelf upgrade for the bottom end of your engine. It's specifically for the late 1997 through 2006 24-valve Dodge Cummins engines with a 2-bolt main design. The kit, part number ARP-247-5401, replaces the factory main cap bolts with incredibly strong ARP2000 alloy studs. Why upgrade? Studs provide more consistent and reliable clamping force on your main bearing caps, which is critical for handling big power from turbos, tunes, or nitrous. It helps keep your crankshaft securely in place and can prevent crank walk under high stress. If you're planning on making serious horsepower or just want the peace of mind of the best possible bottom-end strength, this ARP kit is the go-to choice for Cummins builders. It weighs about 4.25 lbs and comes with everything you need for the job.
