ACL 5M8309A-.75 Subaru EJ20, EJ22 and EJ25 Crankshaft Main Bearing Set

ACL Subaru 4 EJ20/EJ22/EJ25 (5 flange) Engine Crankshaft Main Bearing Set

The ACL 5M8309A-.75 crankshaft main bearing set is designed for Subaru 4-cylinder EJ20, EJ22 and EJ25 engines equipped with a 5-flange crankshaft configuration. Manufactured by ACL, this replacement bearing set supports proper crankshaft positioning and smooth engine operation when installed with correctly prepared and measured engine components.

These main bearings are intended for engine rebuilding, maintenance and performance applications where dependable fitment and consistent bearing performance are required. The .75 undersize specification is intended for crankshafts that have been machined to the corresponding undersize journal measurement. Always verify crankshaft journal dimensions, housing bore measurements, bearing clearance and engine application before installation.

Fitment: The set is listed for the 1998 Subaru Forester and may apply to other Subaru vehicles using the specified EJ20, EJ22 or EJ25 engine and 5-flange crankshaft configuration. Confirm exact vehicle, engine code, crankshaft design and bearing requirements before purchase. Professional installation is recommended, including cleaning, inspection, accurate clearance measurement and adherence to the engine manufacturer’s assembly procedures.

What’s Included: One ACL crankshaft main bearing set for the specified Subaru engine application. The package is intended for main bearing replacement and does not include a crankshaft, connecting rod bearings, gaskets, fasteners or installation tools.

Key Specifications: Brand: ACL; Part Number: 5M8309A-.75; Application: Automotive engine crankshaft main bearings; Engine Family: Subaru EJ20, EJ22 and EJ25; Crankshaft Configuration: 5-flange; Bearing Grade: .75 undersize; Quantity: One main bearing set; Vehicle Fitment: Select Subaru applications, including the 1998 Forester.

Features:

• Application: Designed for Subaru EJ20, EJ22 and EJ25 engines using a 5-flange crankshaft configuration.
• Undersize Specification: .75 undersize bearings support crankshafts machined to the matching journal specification.
• Engine Rebuilding: Suitable for replacement, overhaul and performance-oriented engine assembly applications.
• Installation Support: Helps restore proper crankshaft bearing fit when engine clearances and journal measurements are correctly verified.

Fitments:
1998 Subaru Forester Base
1998 Subaru Forester L
1998 Subaru Forester S

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: false
Units Per Sku: 1