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  See all Engine products
ACL Cummins 5.9L Standard Size Connecting Rod Bearing Set +.003 OD 2003+ - 6B3571PO/S03-STD

If you're diving into the world of high-performance engines, you know the importance of quality components. That’s where the ACL Race Series Engine Bearings come into play. These bad boys are crafted with a unique blend of design, metallurgy, and engineering that’s tailored for those who push their engines to the limit. Whether you're running a 4, 6, or 8-cylinder setup, these bearings are built to handle the heat and stress that comes with higher RPMs.

  • Strength Meets Design: The overlay plate is high-strength but comes in a reduced thickness. This isn’t just for show; it improves fatigue properties and helps keep your engine running smoothly.
  • Solid Support: Each rod bearing has a hardened steel back. This not only supports the bearing lining but also keeps everything locked in place within the housing.
  • Better Retention: The increased crush means these bearings stay put, even when the engine is working hard.
  • Heat Transfer: Forget about flash plating on the back. This design boosts heat transfer, ensuring that your bearings stay cool and maintain a solid grip in their housing.
  • RPM Ready: With increased eccentricity, these bearings can handle bore distortion at high RPMs, which is crucial for forming hydrodynamic oil films that keep everything lubricated.
  • Optimized Flow: The 3/4 grooved main bearings are designed to maximize the load-carrying surface area and improve oil flow to the conrod bearings. This means better lubrication and less wear.
  • Tight Tolerances: Consistent wall tolerances help maintain the perfect clearances, which is vital for performance engines.
  • Chamfered Edges: Enlarged ID chamfers on the bearing edges accommodate large fillet radii on performance crankshafts, which is a must for any serious build.

Product Specs:

  • Size: Standard
  • Oil Clearance: +.003 Extra

Now, if you’re working with a 2003+ Cummins 5.9L, this set (part number 6B3571PO/S03-STD) is a perfect match for your cracked CR cap connecting rods. These bearings are designed to fit just right, ensuring you get the performance you’re after without any fuss.

So, if you’re serious about your engine’s performance and longevity, these ACL bearings are worth considering. They’re built for those who know that every detail counts when it comes to high RPM driving.

Other Part Numbers:
ACL #acl6B3571PO/S03-STD

Proposition 65

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

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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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