ACL Race Series Main Bearings #5 Thrust | 2002-2021 Subaru WRX/STi EJ-Series (5M8309H)

ACL Bearings
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ACL Race Series Main Bearings

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

Features

  • Designed to withstand higher RPM conditions.
  • 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 bearing sand 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.

Applications

  • Subaru EJ-Series Engines with #5 Thrust Bearing
  • 2002-2014 WRX
  • 2004-2021 STI
  • 1992-2017 Impreza
  • 1989-2020 Legacy

What's In The Box?

  • (1) Complete Set of Main Bearings

Warranty

  • Manufacturer Standard Warranty

Customer Reviews

Based on 4 reviews
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j
juan angulo
Bien

Llegaron en muy buen estado no hay queja alguna

J
J.D.
Great buy!

Products are great and customer service is the best i e experienced!

A
Andrey
Great Bearings

Used many times. Always work great. Suitable for both a standard car and a very powerful one.

J
Jacob Shaulis
ACL bearings

This will be the 2nd set i have ran with no issues. Great products.