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ACL Main Bearing Set for Nissan RB25DETT/RB26DETT, Standard Size, Extra Oil Clearance - 7M2428HX-STD
ACL Main Bearing Set for Nissan RB25DETT/RB26DETT, Standard Size, Extra Oil Clearance - 7M2428HX-STD - Image 2 ACL Main Bearing Set for Nissan RB25DETT/RB26DETT, Standard Size, Extra Oil Clearance - 7M2428HX-STD - Image 2

If you're pushing your engine to the limits, you know how crucial it is to have the right bearings in place. That’s where these ACL Race Series Engine Bearings come into play. Crafted with a unique blend of design and metallurgy, these bearings are built to handle the high RPMs that come with serious racing and performance driving. Whether you’re running a 4, 6, or 8-cylinder setup, these bearings are designed to keep your engine running smoothly and efficiently.

What sets these bearings apart?

  • They feature a high-strength overlay plate that’s thinner than what you’d find in standard bearings, which helps reduce fatigue over time. This means they can take a beating and keep on ticking.
  • All rod bearings come with hardened steel backs for better support. This not only helps with retention in the housing but also means you won't have to worry about them shifting around under pressure.
  • With increased crush, these bearings hold on tighter, which is essential for maintaining stability and performance.
  • Gone is the flash plating on the back, which means better heat transfer and a more solid grip on the housing. This is a small change that makes a big difference when you're pushing the limits.
  • They’ve got increased eccentricity to tackle bore distortion at high RPMs. This helps in forming those vital hydrodynamic oil films that keep everything lubricated.
  • 3/4 grooved main bearings optimize the load-carrying surface area and enhance oil flow to the conrod bearings, giving you that extra edge on the track.
  • Tight wall tolerances ensure consistent clearances, which is crucial for high-performance builds.
  • Plus, the enlarged ID chamfers accommodate those larger fillet radii on performance crankshafts, making installation smoother.

Specifications:

  • Size: STD
  • Oil Clearance: +0.001" Extra
  • Half Type: Identical Halves
  • Material: Tri-metal Hardened Steel Backs
  • Min Std Shaft Size: 2.1634 in / 54.951 mm
  • Max Std Shaft Size: 2.1644 in / 54.975 mm
  • Min Std Tunnel Size: 2.3089 in / 58.645 mm
  • Max Std Tunnel Size: 2.3094 in / 58.658 mm
  • Max Wall at Crown: 0.0714 in / 1.814 mm
  • Max Overall Length: 1.063 in / 27 mm

Fitment:

  • Nissan GTR 2009-2021
  • Nissan Skyline R32 1989-1994
  • Nissan Skyline R33 1995-1998
  • Nissan Skyline R34 1999-2002

So if you’re running a 7M2428HX-STD ACL Nissan RB25DETT/RB26DETT, these high-performance main bearings with that extra oil clearance are what you need to keep your engine in top shape. Trust me, you’ll feel the difference when you hit the gas.

Other Part Numbers:
ACL #acl7M2428HX-STD

Proposition 65

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

Vehicle
2009-2021
 Nissan GTR
1989-1994
 Nissan Skyline R32
1995-1998
 Nissan Skyline R33
1999-2002
 Nissan Skyline R34

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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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