
Cylinder Head Stud Kit for 1989-1998 Cummins 5.9L 12-Valve Diesel Engines
- Studs
- 12-Point Flanged Nuts
- Washers
- Assembly Lube
These JEGS 555-83433 Cylinder Head Studs provide the clamping force required for engines with increased boost levels, cylinder pressures, and higher compression ratios. Whether you are building a modified engine or just replacing the head gaskets, choose JEGS Studs over inferior OEM torque-to-yield bolts.
JEGS 555-83433 Cylinder Head Stud Kit Features:
- Premium grade custom 4135 alloy steel rated at aircraft quality
- Total heat penetration to 210,000 psi tensile strength
- Centerless ground after heat treatment for straightness
- Threads rolled after heat treatment to increase fatigue strength
- Parallel ground washers evenly distribute torque around stud pocket
- Reuseable, unlike OEM torque-to-yield bolts
- Black-Oxide coating provides superior corrosion resistance
Cylinder Head Studs for Superior Clamping Force
JEGS Cylinder Head Stud Kits for Diesel Engines are a premium alloy steel that is heat-treated, centerless ground after heat treatment, and thread-rolled, resulting in superior fatigue strength and straightness. They provide a more even clamping force over OEM head bolts, and unlike torque-to-yield bolts, they are reusable, saving you time and expense.


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