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ACL Cummins 5.9L Standard Size Connecting Rod Bearing Set +.003 OD 2003+ - 6B3570PO/S03-STD

When it comes to pushing your engine to its limits, you want bearings that can handle the heat—literally. That's where the ACL Race Series Engine Bearings come into play. These aren't just your run-of-the-mill bearings; they’re crafted with a unique blend of design, metallurgy, and engineering that really speaks to the needs of performance enthusiasts. Designed for 4, 6, and 8 cylinder setups, they’re built to withstand those higher RPMs without breaking a sweat.

What makes these bearings stand out?

  • The overlay plate is high strength but thinner, which means you get improved fatigue properties. Less weight, more strength—can’t go wrong there.
  • All rod bearings come with hardened steel backs. This little touch boosts the support for the bearing lining and helps keep everything snug in the housing.
  • They’ve upped the crush factor too, which means better retention. Your bearings aren’t going anywhere.
  • Forget about flash plating on the back; it’s gone. This change improves heat transfer and helps the bearings grip the housing better. Less slippage, more grip.
  • With increased eccentricity, these bearings are ready to handle bore distortion at high RPMs, aiding in the formation of those all-important hydrodynamic oil films.
  • Check out the 3/4 grooved main bearings—they optimize the load-carrying surface area and ensure oil flows smoothly to the conrod bearings. That’s crucial for performance.
  • Thanks to tight wall tolerances, you can keep those clearances consistent, which is a must for any serious build.
  • And if you’ve got a performance crankshaft, the enlarged ID chamfers on the bearing edges accommodate larger fillet radii, so you can push your setup even harder.

Product Specs:

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

These bearings are specifically made for the 2003+ Cummins 5.9L with a machined CR cap, and they come as a standard size connecting rod bearing set with a +.003 OD. If you're looking to keep your engine running cool and strong, these are the bearings you want to consider. They’re tough, reliable, and ready to take your engine performance to the next level without the fluff.

Other Part Numbers:
ACL #acl6B3570PO/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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