1-480-966-3040 Mon-Fri 8am to 5pm AZ
Performance & Aftermarket Car Parts - Vivid Racing Performance & Aftermarket Car Parts - Vivid Racing
Live Chat
Hello, Sign in My Account
Sign In
Wishlist
0
My Cart
My Cart $0.00
  See more parts for Nissan GTR
Select the year of your Nissan GTR:
ACL Nissan VR38DETT GT-R 0.25 Oversized High Performance Main Bearing Set 2009-2021 - 4M2505H-.25
ACL Nissan VR38DETT GT-R 0.25 Oversized High Performance Main Bearing Set 2009-2021 - 4M2505H-.25 - Image 2 ACL Nissan VR38DETT GT-R 0.25 Oversized High Performance Main Bearing Set 2009-2021 - 4M2505H-.25 - Image 2

ACL 4M2505H-.25 Main Bearing Set

The ACL 4M2505H-.25 is a high-performance main bearing set specifically designed for the Nissan VR38DETT engine found in the GT-R models from 2009 to 2021. This bearing set combines advanced metallurgy and engineering to meet the demands of high RPM conditions, making it a reliable choice for both street and track enthusiasts.

Features:

  • High strength overlay plate with reduced thickness enhances fatigue resistance.
  • Hardened steel backs on all rod bearings provide better support and retention.
  • Increased crush improves bearing retention in the housing.
  • Elimination of flash plating enhances heat transfer and grip.
  • Increased eccentricity compensates for bore distortion at high RPM, aiding oil film formation.
  • 3/4 grooved main bearings optimize load carrying surface area and oil flow.
  • Tight wall tolerances ensure consistent clearances for better performance.
  • Enlarged ID chamfers accommodate large fillet radii on performance crankshafts.

Specifications:

  • Size: 0.25 Oversized
  • Oil Clearance: Standard
  • Half Type: Identical Halves
  • Material: Tri-metal with hardened steel backs
  • Min Std Shaft Size: 2.5571 in / 64.951 mm
  • Max Std Shaft Size: 2.5581 in / 64.975 mm
  • Min Std Tunnel Size: 2.7556 in / 69.993 mm
  • Max Std Tunnel Size: 2.7566 in / 70.017 mm
  • Max Wall at Crown: 0.1040 in / 2.641 mm
  • Max Overall Length: 0.7874 in / 20.00 mm

Customer Feedback:

"I installed these bearings in my GT-R and immediately noticed a difference in performance. The engine feels smoother, and I have more confidence pushing it to higher RPMs." - Jamie T.

"These bearings are a must-have for anyone serious about their Nissan GT-R. The quality is evident, and they fit perfectly." - Mark R.

Other Part Numbers:
ACL #acl4M2505H-.25

Proposition 65

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

Vehicle
2009-2021
 Nissan GTR

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.

Check out these other great products