ACL Race Series Main Bearings for High-Performance Engines 5M1219H-.025

ACL Race Series Main Bearings — 5M1219H-.025 Brand: ACL Engineered for high-performance and motorsport applications, the ACL Race Series Main Bearings 5M1219H-.025 deliver precision, durability, and superior oil control for Mitsubishi 4G63/4G64 engines (7-bolt EVO V–IX). These are 0.025mm oversized main bearings designed to restore correct clearances after line-boring or to provide improved load capacity in built engines. Key Features Application: Mitsubishi 4G63 / 4G64, 7-bolt EVO V–IX Size: +0.025mm oversized for corrected bearing clearance Race Series Construction: High fatigue strength backing with a proven tri-metal overlay for enhanced wear resistance Optimized Oil Control: Designed for stable hydrodynamic film under high RPM and boost Durability: Improved seizure resistance for aggressive tuning and prolonged service life Why Choose ACL Race Series ACL is trusted in competition and high-performance builds. These bearings are manufactured to tight tolerances and engineered to withstand increased loads, elevated temperatures, and the demands of turbocharged or high-revving 4G6x engines. Fitment & Installation Direct fit for Mitsubishi 4G63/4G64 7-bolt crankcases Use when main journals are machined to +0.025mm or when upgrading for performance reliability Professional installation and torque procedures recommended Upgrade your bottom end with ACL Race Series main bearings for consistent oil film, superior strength, and race-proven reliability.