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ACL Mitsubishi 4G63/4G64 6 Bolt 1st Gen DSM 0.25mm Oversized High Performance Rod Bearing Set - 4B1146H-.25
ACL Mitsubishi 4G63/4G64 6 Bolt 1st Gen DSM 0.25mm Oversized High Performance Rod Bearing Set - 4B1146H-.25 - Image 2 ACL Mitsubishi 4G63/4G64 6 Bolt 1st Gen DSM 0.25mm Oversized High Performance Rod Bearing Set - 4B1146H-.25 - Image 2

ACL 4B1146H-.25 High Performance Rod Bearing Set

The ACL 4B1146H-.25 rod bearing set is engineered for high-performance applications, specifically tailored for the Mitsubishi 4G63/4G64 6 Bolt 1st Gen DSM. These bearings are crafted with advanced metallurgy and design principles, ensuring they meet the rigorous demands of high RPM conditions.

Key Features

  • High strength overlay plate with reduced thickness enhances fatigue resistance, allowing for superior performance under stress.
  • Hardened steel backs on all rod bearings provide improved support for the bearing lining, ensuring reliable retention within the housing.
  • Increased crush enhances bearing retention, preventing displacement during operation.
  • Elimination of flash plating on the back of the bearings promotes better heat transfer and maximizes grip between the bearings and housing.
  • Increased eccentricity compensates for bore distortion at high RPM, aiding in the formation of hydrodynamic oil films for optimal lubrication.
  • 3/4 grooved main bearings optimize load-carrying surface area and facilitate oil flow to the conrod bearings.
  • Tight and consistent wall tolerances ensure uniform clearances, critical for 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 with Hardened Steel Backs
  • Min Standard Shaft Size: 1.7713 in / 44.991 mm
  • Max Standard Shaft Size: 1.7717 in / 45 mm
  • Min Standard Tunnel Size: 1.8898 in / 48 mm
  • Max Standard Tunnel Size: 1.8096 in / 48.020 mm
  • Max Wall at Crown: 0.0588 in / 1.494 mm
  • Max Overall Length: 0.925 in / 23.50 mm

For those looking to enhance the reliability and performance of their Mitsubishi 4G63/4G64 engine, the ACL 4B1146H-.25 rod bearing set provides a robust solution designed to withstand the rigors of high-performance driving.

Other Part Numbers:
ACL #acl4B1146H-.25

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

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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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