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  See more parts for Mitsubishi Eclipse
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ACL Mitsubishi 4G63/4G64 7 Bolt 2nd Gen DSM & EVO I-IV 0.50 Oversized Main Bearing Set - 5M1186A-.50
ACL Mitsubishi 4G63/4G64 7 Bolt 2nd Gen DSM & EVO I-IV 0.50 Oversized Main Bearing Set - 5M1186A-.50 - Image 2 ACL Mitsubishi 4G63/4G64 7 Bolt 2nd Gen DSM & EVO I-IV 0.50 Oversized Main Bearing Set - 5M1186A-.50 - Image 2

ACL 5M1186A-.50 Oversized Main Bearing Set

The ACL 5M1186A-.50 is engineered specifically for high-performance applications in the Mitsubishi 4G63 and 4G64 7 Bolt engines, commonly found in the 2nd Generation DSM and EVO I-IV platforms. This main bearing set is designed to meet the demands of enthusiasts pushing their engines to higher RPMs while maintaining reliability and performance.

Key Features

  • Constructed with a high-strength tri-metal overlay, providing enhanced fatigue resistance under extreme conditions.
  • Hardened steel backs on all bearings ensure improved support and retention within the housing, critical for high-load applications.
  • Increased crush enhances bearing retention, ensuring stability during operation.
  • Flash plating removal on the back of the bearings optimizes heat transfer and maximizes grip between the bearings and housing.
  • Designed with increased eccentricity to accommodate bore distortion at high RPMs, facilitating the formation of hydrodynamic oil films.
  • 3/4 grooved design optimizes load-carrying surface area and oil flow to connecting rod bearings.
  • Manufactured with tight wall tolerances to maintain consistent clearances for improved performance.
  • Enlarged ID chamfers on bearing edges provide compatibility with large fillet radii on performance crankshafts.

Specifications

  • Size: 0.50 Oversized
  • Oil Clearance: Standard
  • Half Type: Identical Halves
  • Material: Tri-metal with Hardened Steel Backs
  • Min Standard Shaft Size: 2.2435 in / 56.985 mm
  • Max Standard Shaft Size: 2.2441 in / 57 mm
  • Min Standard Tunnel Size: 2.4016 in / 61 mm
  • Max Standard Tunnel Size: 2.4024 in / 61.021 mm
  • Max Wall Thickness at Crown: 0.0783 in / 1.99 mm
  • Max Overall Length: 0.8268 in / 21 mm

Fitment

This bearing set is compatible with the following models:

  • Mitsubishi Eclipse (1990-2011)
  • Mitsubishi Galant (1994-2012)

Other Part Numbers:
ACL #acl5M1186A-.50

Proposition 65

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

Vehicle
1990-2011
 Mitsubishi Eclipse
1994-2012
 Mitsubishi Galant

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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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