Forge Motorsport L19 Rally Conrod Bolt by ARP

Precision-engineered from ultra-high-strength 4340 chromoly steel with ARP’s aerospace-grade L19 alloy treatment for 260,000+ psi tensile strength. Features rolled threads for 30% greater fatigue resistance than CNC-cut alternatives, ideal for 800+ HP forced induction builds. Shot-peened surface reduces stress risers by 22% in high-RPM rally/race applications. Direct replacement for OEM fasteners in Subaru EJ20/EJ25, Mitsubishi 4G63, and BMW S54 engines. Includes ARP’s military-spec moly lubricant for accurate torque-to-yield installation. Sold in sets of 4/8/16 units with bulk discounts.