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  See more parts for Mitsubishi Eclipse
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ACL Mitsubishi Standard Size Rod Bearing Set 4B1146A-STD for 1990-2017 Eclipse, Galant, Lancer - 4B1146A-STD
ACL Mitsubishi Standard Size Rod Bearing Set 4B1146A-STD for 1990-2017 Eclipse, Galant, Lancer - 4B1146A-STD - Image 2 ACL Mitsubishi Standard Size Rod Bearing Set 4B1146A-STD for 1990-2017 Eclipse, Galant, Lancer - 4B1146A-STD - Image 2

Alright, let’s talk about the ACL Race Series Engine Bearings. If you’re pushing your engine to the limits, these bearings are designed to keep up. Built with a unique blend of design and metallurgy, they’re made for those high RPM conditions where you really need reliability. Whether you’re rocking a 4, 6, or 8-cylinder setup, these bearings have got you covered.

What’s so special about them?

  • First off, the high-strength overlay plate is thinner, which means better fatigue resistance. That’s crucial when your engine is working hard.
  • They’ve got hardened steel backs on all rod bearings, giving you solid support and helping keep the bearings locked in place. No one wants a bearing that’s moving around in the housing!
  • With increased crush, these bearings stay put, which is a must for performance engines.
  • They’ve eliminated flash plating on the back, improving heat transfer. This means they can handle the heat better and stick to their housing like glue.
  • Increased eccentricity helps counteract bore distortion at high RPMs, which is key for creating those hydrodynamic oil films that keep everything lubricated.
  • The 3/4 grooved main bearings optimize the load-bearing surface and oil flow to your conrod bearings. More oil where it’s needed!
  • Consistent wall tolerances help you maintain those all-important clearances for smooth operation.
  • And let’s not forget the enlarged ID chamfers on the edges, perfect for those performance crankshafts with larger fillet radii.

Let’s get into some specs:

  • Sizes available: STD, .025, .25
  • Oil clearance: Standard
  • Half type: Identical halves
  • Material: Tri-metal with hardened steel backs
  • Minimum standard shaft size: 1.7713in / 44.991mm
  • Maximum standard shaft size: 1.7717in / 45.000mm
  • Minimum tunnel size: 1.8898in / 48.000mm
  • Maximum tunnel size: 1.8898in / 48.000mm
  • Max wall at crown: 1.8898in / 48.000mm
  • Max overall length: 1.8898in / 48.000mm

These bearings fit:

  • Mitsubishi Eclipse (1990-2011)
  • Mitsubishi Galant (1994-2012)
  • Mitsubishi Lancer (2002-2017)

So if you’re serious about your build and need bearings that can handle the heat and pressure, give these ACL Race Series bearings a shot. They’re built for performance, and you’ll feel the difference when you push your engine to the max.

Other Part Numbers:
ACL #acl4B1146A-STD

Proposition 65

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

Vehicle
1990-2011
 Mitsubishi Eclipse
1994-2012
 Mitsubishi Galant
2002-2017
 Mitsubishi Lancer

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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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