ARP 104-6028 Connecting Rod Bolt Kit for VW Air-Cooled 40HP 1500cc M9

The ARP 104-6028 is a high-performance connecting rod bolt kit specifically engineered for Volkswagen air-cooled engines. This kit is designed to fit both early and late 40 horsepower and 1500cc VW Type 1 engines, providing a significant upgrade over factory fasteners.

Key Features:

• M9 metric thread size for precise fitment
• 2-piece bolt design for proper connecting rod assembly
• Manufactured from ARP's premium 8740 chromoly steel
• Heat-treated before grinding and thread rolling for maximum strength
• Large underhead radius provides greater fatigue resistance
• Nearly five times stronger than OEM bolts
• Suitable for stock rebuilds through high-performance applications

ARP connecting rod bolts are manufactured to aerospace quality standards, using seamless and defect-free materials. Each bolt is precision-machined and guaranteed to pass magnetic particle inspection. This kit provides the reliability and strength needed for air-cooled VW engines used in daily drivers, restorations, and performance builds.