ACL Bearings 5M8309HC-STD Race Series Main Bearing Set for Subaru EJ20, EJ22 and EJ25

The ACL Bearings 5M8309HC-STD Race Series Main Bearing Set is designed for Subaru EJ-Series engines, including the EJ20, EJ22 and EJ25. This coated standard-size main bearing kit supports dependable crankshaft operation in performance-focused street, track and competition applications. It is an appropriate replacement for worn or damaged original-equipment main bearings when standard crankshaft dimensions are retained.
The Race Series construction is engineered to provide a durable bearing surface and reliable support under demanding engine conditions. The protective coating helps promote smooth operation while supporting resistance to wear, friction and operating stress. Each set is manufactured for consistent fit and alignment when installed with properly inspected engine components and correct bearing clearances.
This ACL Bearings main bearing set is supplied in the standard specification identified by part number 5M8309HC-STD. Before installation, verify engine application, crankshaft condition, housing bore measurements and manufacturer-recommended clearances. Professional installation and accurate measurement are recommended to help ensure proper lubrication, bearing life and overall engine reliability.
Designed specifically for compatible Subaru EJ-Series applications, the 5M8309HC-STD provides a practical performance replacement solution for engine rebuilds, maintenance and upgraded powertrain projects. The kit is not air restricted and does not require truck freight, making it suitable for standard automotive shipping and installation planning.

Features:

• Brand: ACL Bearings

• Part Number: 5M8309HC-STD

• Product Type: Race Series coated main bearing set

• Application: Subaru EJ20, EJ22 and EJ25 engines

• Bearing Size: Standard

• Coating: Protective coated bearing surface

• Use: Suitable for street, track, competition and engine rebuild applications

• Fitment: Designed for compatible Subaru EJ-Series crankshafts with standard dimensions

• Shipping Classification: Not air restricted and does not require truck freight