ACL Main Bearings Standard Size Position #3 (5M8297A-STD) | Subaru WRX 2002-2014 / STI 2004-2021

The ACL Main Bearings Standard Size Position #3 are engineered for Subaru WRX 2002–2014 and Subaru STI 2004–2021 engines, providing precise bearing geometry and consistent oil clearance for reliable engine operation. Designed for engine builders and performance-focused applications, these bearings help maintain proper crankshaft support while promoting stable oil film control under both street and performance conditions.

KEY FEATURES

• Standard size main bearing designed specifically for crankshaft position #3
• Precision-manufactured to maintain consistent oil clearance and bearing crush
• High-quality bearing material supports long-term durability and load handling
• Ideal for OEM replacement, performance rebuilds, and refreshed engine assemblies
• Engineered to promote stable oil film and reliable crankshaft support

TECHNICAL SPECIFICATIONS

• Bearing Type: Main bearing (position #3)
• Size: Standard
• Application: Subaru EJ-series engines
• Material: Performance-grade bearing alloy
• Design Intent: Provides consistent oil clearance and crankshaft stability

VEHICLE FITMENT

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

ACL manufactures precision-engineered engine bearings designed to deliver consistent oil clearance, improved load capacity, and reliable performance for street, performance, and motorsports engine builds.