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ACL Race Series Engine Bearings for Subaru EJ20/EJ22/EJ25, STD Size, .002mm OS, Trimetal
$109.45

ACL 5M8309HXOS2-STD Engine Bearings

The ACL 5M8309HXOS2-STD engine bearings are crafted for those who demand durability and performance in their engines. These high-performance Trimetal bearings are specifically designed for Subaru EJ20, EJ22, and EJ25 engines, particularly for thrust applications in the #5 position. With a focus on engineering excellence, these bearings are built to withstand the rigors of high RPM driving.

Features

  • High strength overlay plate with a reduced thickness that enhances fatigue properties, ensuring longevity even under stress.
  • Hardened steel backs on all rod bearings provide superior support for the bearing lining, enhancing retention within the housing.
  • Increased crush improves bearing retention, which is critical for maintaining performance during dynamic conditions.
  • Elimination of flash plating on the back promotes better heat transfer and maximizes the grip between the bearings and their housing.
  • Enhanced eccentricity compensates for bore distortion at high RPMs, aiding in the formation of hydrodynamic oil films.
  • 3/4 grooved main bearings optimize the load-carrying surface area and facilitate better oil flow to the connecting rod bearings.
  • Tight and consistent wall tolerances help maintain precise clearances, which is vital for performance engines.
  • Enlarged ID chamfers on bearing edges accommodate large fillet radii found on performance crankshafts.

Specifications

  • Size: STD
  • Oil Clearance: +0.001 Extra"
  • Half Type: Identical Halves
  • Material: Tri-metal with hardened steel backs
  • Min Std Shaft Size: 2.3616 in / 59.984 mm
  • Max Std Shaft Size: 2.3622 in / 60 mm
  • Min Std Tunnel Size: 2.5197 in / 64 mm
  • Max Std Tunnel Size: 2.5205 in / 64.02 mm
  • Max Wall at Crown: 0.0784 in / 1.992 mm
  • Max Overall Length: 0.748 in / 19 mm

Customer Feedback

Many users have expressed satisfaction with the performance of the 5M8309HXOS2-STD bearings. One customer noted, "I installed these in my EJ20, and the difference was noticeable right away. The engine runs smoother, and I feel more confident at higher RPMs." Another user mentioned, "These bearings are a solid upgrade. They fit perfectly and have held up well under stress." It's clear that these bearings meet the expectations of performance enthusiasts looking for reliability and strength.

Other Part Numbers:
ACL #acl5M8309HXOS2-STD

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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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