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  See more parts for Subaru Legacy
Select the year of your Subaru Legacy:
ACL Subaru EJ18/EJ20/EJ22/EJ25 Standard Size Main Bearing Set 5M8297A-STD - 5M8297A-STD
ACL Subaru EJ18/EJ20/EJ22/EJ25 Standard Size Main Bearing Set 5M8297A-STD - 5M8297A-STD - Image 2 ACL Subaru EJ18/EJ20/EJ22/EJ25 Standard Size Main Bearing Set 5M8297A-STD - 5M8297A-STD - Image 2

ACL Race Series Engine Bearings - 5M8297A-STD

If you’re a Subaru Legacy owner looking to enhance your engine’s performance, the ACL Race Series Engine Bearings (5M8297A-STD) are engineered to meet your high RPM demands. These bearings are crafted from a unique tri-metal design that combines advanced metallurgy and precision engineering, ensuring your engine runs smoother and more efficiently under pressure.

Why Choose ACL Race Series Bearings?

Designed specifically for Subaru Legacy models from 1990 to 2017, these bearings are built to handle the rigors of performance driving. Whether you’re hitting the track or just enjoying spirited drives on the weekend, these bearings will provide the reliability and durability you need.

Key Features

  • High strength overlay plate with reduced thickness for enhanced fatigue resistance.
  • Hardened steel backs on all rod bearings improve support and retention within the housing.
  • Increased crush for superior bearing retention during high-stress conditions.
  • Flash plating elimination enhances heat transfer and maximizes grip with the housing.
  • Increased eccentricity compensates for bore distortion at high RPM, aiding in hydrodynamic oil film formation.
  • 3/4 grooved main bearings optimize load-carrying surface area and oil flow to the conrod bearings.
  • Tight wall tolerances ensure consistent clearances for better performance.
  • Enlarged ID chamfers accommodate large fillet radii on performance crankshafts.

Specifications

  • Size: STD, .025, .25
  • 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: 2.5197 in / 64.000 mm
  • Max Std Tunnel Size: 2.5205 in / 64.020 mm
  • Max Wall at Crown: 64.020 in / 2.005 mm
  • Max Overall Length: 0.7480 in / 19.00 mm

Real-World Feedback

Subaru Legacy owners have reported significant improvements in engine performance after installing the ACL Race Series bearings. One owner noted, “After putting these bearings in my 2005 Legacy GT, I noticed a smoother rev range and better oil pressure under load.” Another mentioned, “These bearings held up beautifully during track days—no signs of wear even after pushing the limits.”

Upgrade Your Subaru Legacy

Don’t compromise on your engine’s performance. Equip your Subaru Legacy (1990-2017) with the 5M8297A-STD ACL Race Series Engine Bearings and experience the difference in reliability and power. Perfect for those who demand the best from their vehicles, these bearings are a must-have for any performance-oriented build.

Other Part Numbers:
ACL #acl5M8297A-STD

Proposition 65

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

Vehicle
1990-2017
 Subaru Legacy

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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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