ACL Bearings 5M1186H-.025 Race Series Main Bearing Set Oversize - 0.025mm

ACL Race Series main bearings engineered specifically for high-performance and racing applications where extreme durability is essential. Manufactured to exacting tolerances with particular attention to wall thickness accuracy, ensuring reliable fit and consistent clearances. This 0.025mm oversize bearing set is designed for Mitsubishi 4G63 7-bolt engines with integrated thrust bearings.

Race-Proven Construction:

• High strength overlay plate with reduced thickness for improved fatigue properties
• Hardened steel backs to improve support of the bearing lining and assist with bearing retention
• Large chamfer to accommodate larger crankshaft fillets
• Increased crush for improved bearing retention
• 3-layer groove design to provide optimum oil supply and maximize load carrying capacity
• No silvery tin flash finish that can move under high loading and heat, preventing high spots and bearing distortion

ACL Performance Race Bearings feature tri-layer metal construction with hardened steel backing to withstand high RPM conditions, high stress loads, and high temperatures. Ideal for turbocharged builds, high boost applications, and extreme racing conditions.