Fits: 3.9L 4BT Cummins
Gator Fasteners Heavy Duty Main Studs are design to hold the bottom end of your Cummins 3.9L 4BT together whether you're building a tow rig, race truck or just a daily driver.
These fasteners have a much higher strength and will not stretch like the factory bolts will. The Gator Fasteners Performance Main Studs are a Heavy Duty studs designed for stock to built 5.9L Cummins engines.
Amsoil Assembly lube included in box.
Gator Fasteners: MSK394BT