1-480-966-3040 Mon-Fri 8am to 5pm AZ
Performance & Aftermarket Car Parts - Vivid Racing Performance & Aftermarket Car Parts - Vivid Racing
Live Chat
Hello, Sign in My Account
Sign In
Wishlist
0
My Cart
My Cart $0.00
  See more parts for Mitsubishi Evolution
Select the year of your Mitsubishi Evolution:
ACL Mitsubishi 4G63/4G64 7 Bolt 2nd Gen DSM EVO I-IX 0.25mm Oversized Rod Bearing Set - 4B1185H-.25
ACL Mitsubishi 4G63/4G64 7 Bolt 2nd Gen DSM EVO I-IX 0.25mm Oversized Rod Bearing Set - 4B1185H-.25 - Image 2 ACL Mitsubishi 4G63/4G64 7 Bolt 2nd Gen DSM EVO I-IX 0.25mm Oversized Rod Bearing Set - 4B1185H-.25 - Image 2

ACL Race Series Engine Bearings - 4B1185H-.25

When it comes to upgrading your Mitsubishi Evolution (1992-1998 & 2000), the ACL Race Series Engine Bearings - 4B1185H-.25 are a top-tier choice for performance enthusiasts looking to push their engines to the limit. Engineered with a unique blend of design, metallurgy, and engineering, these Trimetal bearings are built to handle the demands of high RPM driving, ensuring your engine runs smoothly under pressure.

Fitment

These engine bearings are specifically designed for:

  • Mitsubishi Evolution 1992-1998
  • Mitsubishi Evolution 2000

Key Features

  • High-strength overlay plate with reduced thickness enhances fatigue resistance, making these bearings ideal for high-performance applications.
  • Hardened steel backs on all rod bearings provide superior support for the bearing lining, ensuring they stay securely in place during intense driving.
  • Increased crush for improved bearing retention, giving you peace of mind on the track.
  • Elimination of flash plating on the back of the bearings enhances heat transfer, maximizing the grip between the bearings and housing.
  • Enhanced eccentricity compensates for bore distortion at high RPM, helping to form hydrodynamic oil films for better lubrication.
  • 3/4 grooved main bearings optimize load-carrying surface area and oil flow to the conrod bearings, ensuring consistent performance.
  • Tight wall tolerances maintain consistent clearances, which is crucial for performance builds.
  • Enlarged ID chamfers accommodate large fillet radii on performance crankshafts, allowing for smoother operation.

Specifications

  • Size: STD, .025, .25
  • Oil Clearance: Standard
  • Half Type: Upper & Lower
  • Material: Tri-metal Hardened Steel Backs
  • Min Std Shaft Size: 1.7709 in / 44.981 mm
  • Max Std Shaft Size: 1.7715 in / 44.996 mm
  • Min Std Tunnel Size: 1.8897 in / 47.998 mm
  • Max Std Tunnel Size: 1.8095 in / 48.019 mm
  • Max Wall at Crown: 0.0586 in / 1.488 mm
  • Max Overall Length: 0.8307 in / 21.1 mm

Customer Feedback

One Mitsubishi Evolution owner shared, "After installing the ACL Race bearings, my engine feels more responsive at higher RPMs. I’ve taken it to the track, and they’ve held up beautifully under stress. No more worrying about bearing failure!"

For those who demand reliability and performance from their Mitsubishi Evolution, the ACL Race Series Engine Bearings - 4B1185H-.25 are a solid investment that will keep your engine performing at its best.

Other Part Numbers:
ACL #acl4B1185H-.25

Proposition 65

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

Vehicle
1992-1998, 2000
 Mitsubishi Evolution

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.

Check out these other great products