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  See more parts for Subaru Forester
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ACL Subaru EJ20/EJ22/EJ25 Standard Size Main Bearing Set for Forester, Impreza, Legacy, Outback - 5M8297H-STD
ACL Subaru EJ20/EJ22/EJ25 Standard Size Main Bearing Set for Forester, Impreza, Legacy, Outback - 5M8297H-STD - Image 2 ACL Subaru EJ20/EJ22/EJ25 Standard Size Main Bearing Set for Forester, Impreza, Legacy, Outback - 5M8297H-STD - Image 2

ACL Race Series Engine Bearings 5M8297H-STD

If you're pushing your Subaru to the limits, you need engine bearings that can keep up. The ACL Race Series Engine Bearings 5M8297H-STD are engineered for high-performance applications, making them a perfect choice for Subaru owners looking to maximize their engine's potential. Designed to handle the rigors of higher RPMs, these trimetal bearings provide the reliability and strength you expect from top-tier performance parts.

Key Features

  • High-strength overlay plate with reduced thickness enhances fatigue resistance.
  • Hardened steel backs on all rod bearings improve support and retention within the housing.
  • Increased crush enhances bearing retention, ensuring stability under pressure.
  • Elimination of flash plating on the back improves heat transfer, maximizing grip between the bearings and housing.
  • Increased eccentricity compensates for bore distortion at high RPMs, aiding in hydrodynamic oil film formation.
  • 3/4 grooved main bearings optimize load-carrying surface area and oil flow to conrod bearings.
  • Tight, consistent wall tolerances help maintain precise clearances for optimal performance.
  • Enlarged ID chamfers accommodate large fillet radii on performance crankshafts.

Technical Specifications

  • Size: STD, .025, .25, 0.5
  • Oil Clearance: Standard
  • Half Type: Identical Halves
  • Material: Tri-metal Hardened Steel Backs
  • Min Std Shaft Size: 2.3616 in / 59.984 mm
  • Max Std Shaft Size: 2.3622 in / 60.000 mm
  • Min Std Tunnel Size: 2.5194 in / 64.000 mm
  • Max Std Tunnel Size: 2.5205 in / 64.020 mm
  • Max Wall at Crown: 0.0789 in / 2.005 mm
  • Max Overall Length: 0.7480 in / 19.00 mm

Fitment

The 5M8297H-STD bearings are compatible with the following Subaru models:

  • Subaru Forester (1998-2017)
  • Subaru Impreza (1993-2017)
  • Subaru Legacy (1990-2017)
  • Subaru Outback (1995-2017)

Customer Feedback

Subaru Legacy owners have reported that these bearings hold up exceptionally well during spirited driving and track days. One user noted, “After installing the ACL bearings on my 2015 Legacy, I noticed a significant drop in engine noise, and they’ve held up flawlessly through multiple autocross events.”

Whether you're building a daily driver or a track-ready machine, the ACL Race Series Engine Bearings 5M8297H-STD are a smart upgrade for any Subaru enthusiast looking to enhance performance and reliability. Don't compromise on your build; choose parts that deliver results.

Other Part Numbers:
ACL #acl5M8297H-STD

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
1998-2017
 Subaru Forester
1993-2017
 Subaru Impreza
1990-2017
 Subaru Legacy
1995-2017
 Subaru Outback

ACL Banner

Who is ACL?

ACL is a company that specializes in manufacturing and distributing high-quality engine bearings that have played a key role in the Australian automotive parts market. 

Based in Launceston, Tasmania, Australia, the company has been in the business for more than 70 years and has become the leading brand when it comes to its market segment.

Throughout the years, ACL has consistently provided top quality products and has become the equipment supplier of multiple Automotive brands such as Lancia, Mazda, Mini, Mitsubishi, Nissan, Peugeot, Subaru, Toyota, Volvo, Suzuki, Renault, SAAB, and more.  ACL also provides a replacement product range used by the aftermarket industry.

The company ensures that it maintains its high level of standard by employing manufacturing processes that are ISO certified. They also use the industry’s most advanced tooling equipment and designing software that allows them to create products that are superior in quality. ACL has been known worldwide to create bearings that are durable, innovative, and precise.

ACL also offers bearing used for high-performance applications. The company has been involved in motorsport racing since the 1960s and has manufactured bearings used in Brabham Formula 1. Today, their products are being used in different racing disciplines such as the Australian Supercar Championship, Drag racing, Driftings, and Rally.

Purchase ACL Bearings at Vivid Racing

Engine Bearings are a critical component of a vehicle and should not be overlooked. If you want to make sure that what you get is something you could rely on, then ACL is the brand for you. With over 200 engine applications, whether it’s an American, Australian, European, or Asian made vehicle, ACL got you covered. Visit Vivid Racing and check out their list of bearings that would fit your specific needs.

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