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  See more parts for Honda Prelude
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ACL Honda B18A1 Standard Size Rod Bearing Set 83-90, Tri-metal, 4B1946A-STD - 4B1946A-STD
ACL Honda B18A1 Standard Size Rod Bearing Set 83-90, Tri-metal, 4B1946A-STD - 4B1946A-STD - Image 2 ACL Honda B18A1 Standard Size Rod Bearing Set 83-90, Tri-metal, 4B1946A-STD - 4B1946A-STD - Image 2

ACL 4B1946A-STD Engine Bearings

If you're looking for reliable performance from your engine, the ACL 4B1946A-STD rod bearings are worth considering. These bearings are designed with a unique blend of metallurgy and engineering that caters to those who push their vehicles to the limit. They are particularly suitable for high RPM conditions, making them a solid choice for enthusiasts and everyday drivers alike.

Features

  • High strength overlay plate with reduced thickness, enhancing fatigue resistance.
  • Hardened steel backs on all rod bearings, which bolster the support of the bearing lining and help keep them securely in place.
  • Increased crush for better bearing retention, ensuring they stay put even under stress.
  • Elimination of flash plating on the back, which improves heat transfer and maximizes grip between the bearing and its housing.
  • Enhanced eccentricity to counteract bore distortion at high RPM, aiding in the creation of hydrodynamic oil films.
  • 3/4 grooved main bearings designed to optimize load carrying surface area and oil flow to the conrod bearings.
  • Tight wall tolerances to help maintain consistent clearances, which is crucial for performance.
  • Enlarged ID chamfers on bearing edges where necessary, accommodating large fillet radius on performance crankshafts.

Specifications

  • Size: STD, 025, .25
  • Oil Clearance: + Standard
  • Half Type: Identical Halves
  • Material: Tri-metal Hardened Steel Backs
  • Min Standard Shaft Size: 1.7709 in / 44.98 mm
  • Max Standard Shaft Size: 1.7717 in / 45 mm
  • Min Standard Tunnel Size: 1.8898 in / 48 mm
  • Max Standard Tunnel Size: 1.8907 in / 48.024 mm
  • Max Wall at Crown: 0.0592 in / 1.504 mm
  • Max Overall Length: 0.7677 in / 19.5 mm

Customer Feedback

Many users have shared their experiences with the ACL 4B1946A-STD bearings. One customer noted, "I installed these in my Honda Prelude, and the difference was noticeable right away. The engine feels smoother and more responsive." Another user mentioned, "These bearings held up well even during high RPM runs at the track. Definitely worth the investment!"

Fitment

These bearings are compatible with the Honda Prelude models from 1983 to 2001, ensuring a precise fit for your engine needs.

Other Part Numbers:
ACL #acl4B1946A-STD

Proposition 65

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

Vehicle
1983-2001
 Honda Prelude

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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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