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  See more parts for Honda Civic Type-R
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ACL Honda B16/17/18 K20/24 Standard Size Main Bearing Set 90-05, Tri-Metal, 3/4 Grooved - 5M1959A-STD
ACL Honda B16/17/18 K20/24 Standard Size Main Bearing Set 90-05, Tri-Metal, 3/4 Grooved - 5M1959A-STD - Image 2 ACL Honda B16/17/18 K20/24 Standard Size Main Bearing Set 90-05, Tri-Metal, 3/4 Grooved - 5M1959A-STD - Image 2

ACL 5M1959A-STD Main Bearings

The ACL 5M1959A-STD Main Bearings are engineered for high-performance applications, providing a robust solution for Honda’s B16, B17, B18, K20, and K24 engines. These bearings incorporate advanced design and metallurgy to meet the demands of higher RPM conditions, making them an essential component for enthusiasts looking to optimize their engine's performance.

Key Features

  • High-strength overlay plate with reduced thickness enhances fatigue resistance.
  • Hardened steel backs on all rod bearings improve support and retention within the housing.
  • Increased crush for superior bearing retention during operation.
  • Removal of flash plating on the back of the bearings enhances heat transfer and maximizes grip within the housing.
  • Enhanced eccentricity compensates for bore distortion at elevated RPMs and aids in hydrodynamic oil film formation.
  • 3/4 grooved design optimizes load-carrying surface area and oil flow to connecting rod bearings.
  • Tight wall tolerances ensure consistent clearances across all bearings.
  • Enlarged ID chamfers accommodate large fillet radii on performance crankshafts.

Specifications

  • Size: STD
  • Oil Clearance: Standard
  • Half Type: Identical Halves
  • Material: Tri-metal with Hardened Steel Backs
  • Min Standard Shaft Size: 2.1646 in / 54.98 mm
  • Max Standard Shaft Size: 2.1654 in / 55 mm
  • Min Standard Tunnel Size: 2.3228 in / 59 mm
  • Max Standard Tunnel Size: 2.3236 in / 59.02 mm
  • Max Wall at Crown: 0.0790 in / 2.007 mm
  • Max Overall Length: 0.7874 in / 20.00 mm

Fitment

These bearings are compatible with the following Honda models:

  • Honda Civic Type-R (1997-2009, 2011, 2015-2021)
  • Honda del Sol (1993-1997)
  • Honda Element (2003-2011)
  • Honda Odyssey (1995-2018)

Other Part Numbers:
ACL #acl5M1959A-STD

Proposition 65

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

Vehicle
1997-2009, 2011, 2015-2021
 Honda Civic Type-R
2003-2011
 Honda Element
1995-2018
 Honda Odyssey
1993-1997
 Honda del Sol

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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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