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ACL

5M8309HX-STD

ACL Subaru EJ20/EJ22/EJ25 (For Thrust in #5 Position) Standard Size High Performance Main Bearing Set w/ Extra Oil Clearance


The unique combination of design, metallurgy and engineering come together to deliver what drivers expect from high performance Trimetal engine bearings.

*High strength overlay plate with reduced thickness for improved fatigue properties

*Hardened steel backs on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing.

*Increased crush for improved bearing retention

*Elimination of flash plating on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing.

*Increased eccentricity to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films.

*3/4 grooved Main Bearings to optimize bearing load carrying surface area and oil flow to the conrod bearings.

*Tight consistent wall tolerances to help you maintain consistent clearances.

*Enlarged ID chamfers on bearing edges where required to accommodate large fillet radius on performance crankshafts.

Photos are used for marketing purposes only. Actual product may vary in appearance / style. 

Vehicle Fitment: 

  • 2005-2006 Saab 9-2x Aero 
  • 2003-2006 Subaru Baja
  • 1998-2010 Subaru Forester 
  • 2004-2013 Subaru Forester XT
  • 1993-2011 Subaru Impreza
  • 1995-2011 Subaru Impreza Outback (incl. Sport model)
  • 2002-2014 Subaru WRX
  • 2004-2020 Subaru STI 2.5L
  • 1990-2013 Subaru Legacy
  • 1994-2012 Subaru Legacy GT
  • 2006-2009 Subaru Legacy GT Spec B
  • 2000-2011 Subaru Outback
  • 2005-2009 Subaru Outback XT

Only fits vehicles listed with Thrust Bearing in Position #5

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