The ACL 4B8320H-STD is a standard-size High Performance connecting rod bearing set for Subaru EJ15, EJ16, EJ18, EJ20, EJ22, and EJ25 engines (naturally aspirated and turbo/twin-turbo variants) built with the 48mm journal. "Standard Size" means it's sized for a stock, unmachined crankshaft journal. This journal size is used across the Saab 9-2X and Subaru Forester, Impreza, Legacy, and Outback.
Specifications:
- Type: Rod Bearing Set
- Series: High Performance
- Size: Standard (48mm Journal)
- Engine Fitment: Subaru EJ15/EJ16/EJ18/EJ20/EJ22/EJ25 (Saab 9-2X, Subaru Forester, Impreza, Legacy, Outback)
- Part Number: 4B8320H-STD
FAQ
How do I know if my engine has a 48mm journal?
This set is specifically machined for the 48mm rod journal used on this range of EJ-series engines; ACL offers a separate bearing set for the 52mm journal EJ variants.
What size crank journal does this fit?
Standard size - built for a stock, unmachined 48mm EJ-series journal.
What vehicles use this bearing set?
The Saab 9-2X and Subaru Forester, Impreza, Legacy, and Outback across multiple model years used EJ engines with the 48mm journal.

