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Cummins Heavy Duty Cylinder Head Stud Kit

HMR HD 12MM 98.5-18 5.9L/6.7L Cummins Cylinder Head Stud Kit




HMR 1054008HD


HD H11/L19 12mm Head stud kit for the 1998.5-2018 Dodge 5.9L & 6.7L 24 Valve Cummins Turbo Diesel

These studs are made from L19, a H11 Equivalent and have a gold color, 260 KSI Min.

Recommended for applications exceeding 80PSI of boost.

Stud Sets Include:

  • 26 Studs, Nuts, & Washers
  • ARP Moly Lube
  • Instructions

The head bolt holes in the Cummins blocks are not tapped to the bottom. Haisley has designed these studs with more threads for less stress to the block as well as the stud.  You MUST bottom tap your block to use these studs.

You will need a 12mm x 1.75 bottoming tap to tap the threads to the bottom.  
If you do not have one, we offer them, select it in the drop down.

Haisley part number: HMR 1054008HD

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