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  See more parts for Mitsubishi Galant
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ACL Mitsubishi 4G63/4G64 7 Bolt Main Bearings 0.25mm Tri-Metal for DSM & EVO I-IV - 5M1186H-.25
ACL Mitsubishi 4G63/4G64 7 Bolt Main Bearings 0.25mm Tri-Metal for DSM & EVO I-IV - 5M1186H-.25 - Image 2 ACL Mitsubishi 4G63/4G64 7 Bolt Main Bearings 0.25mm Tri-Metal for DSM & EVO I-IV - 5M1186H-.25 - Image 2

ACL 5M1186H-.25 High Performance Main Bearings

The ACL 5M1186H-.25 engine bearings are engineered specifically for high-performance applications in the Mitsubishi 4G63/4G64 7 Bolt engines found in the 2nd Gen DSM and EVO I-IV. These bearings are crafted with precision to meet the demands of motorsport and spirited driving, ensuring reliability at elevated RPMs.

Key Features

  • Constructed from a high-strength tri-metal overlay, these bearings feature a reduced thickness that enhances fatigue resistance, making them suitable for high-stress environments.
  • Hardened steel backs on all main bearings improve support for the bearing lining, ensuring optimal retention within the housing.
  • Increased crush design enhances bearing retention, providing stability and performance under load.
  • Flash plating has been eliminated from the back of the bearings to promote better heat transfer and improve the grip between the bearing and housing.
  • Enhanced eccentricity compensates for bore distortion at high RPMs, aiding in the formation of hydrodynamic oil films for superior lubrication.
  • 3/4 grooved design optimizes the load-carrying surface area and facilitates improved oil flow to the connecting rod bearings.
  • Tight wall tolerances maintain consistent clearances, ensuring reliable engine performance.
  • Enlarged ID chamfers on bearing edges accommodate large fillet radii on performance crankshafts.

Specifications

  • Size: 0.25mm Oversized
  • Oil Clearance: Standard
  • Half Type: Identical Halves
  • Material: Tri-metal
  • 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 at Crown: 0.0783 in / 1.99 mm
  • Max Overall Length: 0.8268 in / 21 mm

Confirmed Fitment

  • Mitsubishi Galant (1994-2003)
  • Mitsubishi Outlander (2003-2015)

These bearings are designed for those who demand performance and durability from their engine components. Ensure your build is equipped with the ACL 5M1186H-.25 main bearings for a reliable and efficient engine operation.

Other Part Numbers:
ACL #acl5M1186H-.25

Proposition 65

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

Vehicle
1994-2003
 Mitsubishi Galant
2003-2015
 Mitsubishi Outlander

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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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