PPE HEAD STUD KIT 118034300 | 2001-2016 6.6L DURAMAX LB7/LLY/LBZ/LMM/LML

Upgrade the factory head bolts in your 2001–2016 GM 6.6L Duramax with the PPE 118034300 Head Stud Kit. Designed for high-performance, towing, and heavy-duty applications, these premium head studs provide the clamping force needed to handle elevated cylinder pressures and higher boost levels while helping maintain reliable head gasket sealing.

Manufactured from high-strength 8740 chromoly steel, each stud is thread rolled to Mil-S-8879 specifications for increased durability and fatigue resistance. After machining, every stud is center-less ground for exceptional dimensional accuracy and consistency. The studs, nuts, and washers receive a durable black oxide coating to provide corrosion resistance and long-term reliability.

With a verified tensile strength exceeding 231,900 PSI, PPE head studs are engineered to outperform conventional aftermarket alternatives. The kit also includes hardened parallel-ground washers, precision nuts, and assembly lubricant to help ensure accurate torque values and consistent load distribution during installation.

Features:

• Manufactured from premium 8740 chromoly steel
• Verified tensile strength exceeding 231,900 PSI
• Thread rolled to Mil-S-8879 specifications
• Center-less ground for superior accuracy and consistency
• Black oxide coating for corrosion resistance
• Designed to handle higher boost and cylinder pressures
• Improves head gasket retention and sealing performance
• Ideal for stock, towing, and high-performance applications

Kit Includes:

• Head studs
• Precision nuts
• Hardened flat washers
• Assembly lubricant

Fitment:

• 2001–2004 GM 6.6L Duramax LB7
• 2004.5–2005 GM 6.6L Duramax LLY
• 2006–2007 GM 6.6L Duramax LBZ
• 2007.5–2010 GM 6.6L Duramax LMM
• 2011–2016 GM 6.6L Duramax LML