ACL Race Rod Bearings Standard Size 52mm Journal Extra Oil Clearance (4B8296HX-STD) | Subaru WRX 2002-2014 / STI 2004-2021

The ACL Race Rod Bearings Standard Size 52mm Journal with Extra Oil Clearance are engineered for Subaru WRX 2002–2014 and Subaru STI 2004–2021 EJ-series engines that operate under high load, elevated RPM, and increased oil temperature conditions. Featuring HX specification for additional oil clearance, these race-series rod bearings are designed to improve oil film stability and lubrication control in demanding performance and motorsports engine builds.

KEY FEATURES

• Race-series connecting rod bearings for EJ-series engines with 52mm rod journals
• HX specification provides extra oil clearance for high-output engine applications
• Enhances oil film thickness and lubrication stability under high RPM operation
• Precision-manufactured for consistent bearing crush and accurate rod alignment
• Ideal for turbocharged, track-driven, and aggressively tuned EJ engine builds

TECHNICAL SPECIFICATIONS

• Bearing Type: Connecting rod bearing
• Journal Diameter: 52mm
• Size: Standard with extra oil clearance (HX)
• Engine Platform: Subaru EJ-series
• Material: High-performance tri-metal bearing alloy
• Design Intent: Increased oil clearance for improved lubrication stability and load capacity

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.