ARP 138-3701 High Performance Head Stud Kit for Caterpillar C15

The ARP 138-3701 is a high-performance head stud kit specifically engineered for Caterpillar C15 diesel engines. ARP is the industry leader in fastener technology, providing exceptional strength and reliability for demanding heavy-duty and performance applications.

Key Features:

• Precision-manufactured for Caterpillar C15 diesel engine applications
• Superior tensile strength compared to OEM fasteners
• Manufactured from premium aerospace-quality materials
• Thread-rolled after heat treatment for maximum fatigue strength
• Ensures proper clamping force for cylinder head retention
• Includes hardened parallel-ground washers and premium fastener assembly lubricant
• Ideal for high-performance and heavy-duty applications

ARP maintains complete control over the manufacturing process, performing all operations in-house to ensure zero-defect quality. Each stud is precisely heat-treated and centerless ground to exacting tolerances, providing superior consistency and reliability compared to OEM hardware. This kit is essential for engine rebuilds, performance upgrades, or high-stress commercial applications where fastener failure is not an option.