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  See more parts for Honda Civic
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ACL High Performance Rod Bearing Set .025mm Oversized for Acura B17A1/B18A1/B18B1 - 4B1946H-.025
ACL High Performance Rod Bearing Set .025mm Oversized for Acura B17A1/B18A1/B18B1 - 4B1946H-.025 - Image 2 ACL High Performance Rod Bearing Set .025mm Oversized for Acura B17A1/B18A1/B18B1 - 4B1946H-.025 - Image 2

ACL 4B1946H-.025 Trimetal Engine Bearings

If you're looking to enhance the performance of your Honda Civic from 1992 to 2020, the ACL 4B1946H-.025 Trimetal Engine Bearings are engineered for those who demand reliability and strength, especially under high RPM conditions. These race-ready bearings combine advanced metallurgy and precision engineering to meet the expectations of dedicated drivers who push their engines to the limit.

Features

  • High-strength overlay plate with reduced thickness for enhanced fatigue resistance.
  • Hardened steel backs on all rod bearings improve support and retention within the housing.
  • Increased crush for superior bearing retention during extreme conditions.
  • Flash plating elimination on the back of the bearings boosts heat transfer, maximizing grip between the bearings and their housing.
  • Enhanced eccentricity accommodates bore distortion at high RPM, facilitating the formation of hydrodynamic oil films.
  • 3/4 grooved main bearings optimize load-carrying surface area and oil flow to conrod bearings.
  • Tight wall tolerances ensure consistent clearances for optimal performance.
  • Enlarged ID chamfers on bearing edges accommodate large fillet radii on performance crankshafts.

Specifications

  • Size: STD, .025, .25
  • Oil Clearance: Standard
  • Half Type: Identical Halves
  • Material: Tri-metal Hardened Steel Backs
  • Min Std Shaft Size: 1.7709 in / 44.98 mm
  • Max Std Shaft Size: 1.7717 in / 45 mm
  • Min Std Tunnel Size: 1.8898 in / 48 mm
  • Max Std Tunnel Size: 1.8906 in / 48.02 mm
  • Max Wall at Crown: 0.0592 in / 1.504 mm
  • Max Overall Length: 0.7677 in / 19.5 mm

Fitment

These bearings are designed specifically for the following vehicles:

  • Honda Civic 1992-2020

What Owners Are Saying

A 2018 Honda Civic owner shared, "I installed the ACL bearings during my rebuild, and the difference was noticeable. They hold up under high RPMs without any issues, and I feel confident pushing my Civic on the track." Another user with a 2010 model noted, "These bearings fit perfectly and provide the solid performance I need for my boosted setup. No more worrying about bearing failure!"

Upgrade your Honda Civic's engine with the ACL 4B1946H-.025 Trimetal Engine Bearings and experience the difference that quality performance parts can make.

Other Part Numbers:
ACL #acl4B1946H-.025

Proposition 65

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

Vehicle Make/Model
Honda Civic 1992-2020 DX
Honda Civic 1992-2000, 2002-2015, 2017-2020 Si
Honda Civic 1992-2020 LX
Honda Civic 1992-2000 CX
Honda Civic 1992-2020 EX
Honda Civic 1992-1995 VX
Honda Civic 1996-2005 HX
Honda Civic 1997-2000 EX-R
Honda Civic 1998-2012 GX
Honda Civic 1999, 2004-2005 Value Package
Honda Civic 1999-2000 EX-R SIR
Honda Civic 2002-2004 SiR
Honda Civic 2003-2015 Hybrid
Honda Civic 2005 EX Special Edition
Honda Civic 2005 LX Special Edition
Honda Civic 2005 Reverb
Honda Civic 2006-2007 LXS
Honda Civic 2006-2007 EXS
Honda Civic 2008-2020 EX-L
Honda Civic 2008 MUGEN Si
Honda Civic 2008-2011 DX-G
Honda Civic 2009-2015 Hybrid-L
Honda Civic 2009-2010, 2017-2020 Sport
Honda Civic 2009-2011 LX-S
Honda Civic 2011-2013 Base
Honda Civic 2012 Si HFP
Honda Civic 2012-2015 HF
Honda Civic 2013-2015 Natural Gas
Honda Civic 2013-2020 Touring
Honda Civic 2015, 2018 SE
Honda Civic 2016-2018 EX-T
Honda Civic 2016-2017 Turbo
Honda Civic 2016-2018 LX-P
Honda Civic 2017-2020 Sport Touring
Honda Civic 2017-2020 Turbo Plus
Honda Civic 2018 Coupe
Honda Civic 2018-2020 i-Style
Honda Civic 2019-2020 Sport Plus

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.

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