ACL Race Main Bearings Standard Size High Performance Position #5 (5M8309H-STD) | Subaru WRX 2002-2014 / STI 2004-2021

ACL high performance main bearings at Position #5 are developed for EJ Subaru engines that see more boost, more power, and higher sustained RPM.

KEY FEATURES

• Standard size main bearing in a high performance spec
• Position #5 specific design for EJ crankshafts
• Increased fatigue strength for demanding applications
• Engineered surface finish for controlled oil retention
• Ideal for street, track, and competition Subaru builds

VEHICLE FITMENT

• Subaru WRX 2002-2014
• Subaru STI 2004-2021

ACL performance engine bearings deliver race-proven durability and precision for Subaru high-boost and high-RPM builds.