ACL Main Bearings Standard Size Position #5 (5M8309A-STD) | Subaru WRX 2002-2014 / STI 2004-2021

ACL standard main bearings for Position #5 provide OE-size replacement support for Subaru EJ engines while maintaining reliable oil control.

KEY FEATURES

• Standard size main bearing for Position #5
• Direct-fit solution for EJ crankshaft rebuilds
• Quality bearing materials for long-term street use
• Consistent clearances for stable oil pressure
• Great choice for refreshed OEM-style engine 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.