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ACL Engine Bearing Set for BMW M20/M50/M52/M54, STD Size, 80.0mm Bore, 66.0mm Stroke - 6B1490HX-STD
ACL Engine Bearing Set for BMW M20/M50/M52/M54, STD Size, 80.0mm Bore, 66.0mm Stroke - 6B1490HX-STD - Image 2 ACL Engine Bearing Set for BMW M20/M50/M52/M54, STD Size, 80.0mm Bore, 66.0mm Stroke - 6B1490HX-STD - Image 2

ACL 6B1490HX-STD Conrod Bearing Set

The ACL 6B1490HX-STD Conrod Bearing Set is crafted with precision for those who demand reliability and performance from their engine components. This particular set is designed specifically for the BMW M20, M50, M52, and M54 engines, ensuring a snug fit and optimal performance.

Features

  • High-strength overlay plate with reduced thickness enhances fatigue resistance.
  • Hardened steel backs provide excellent support for the bearing lining, improving retention within the housing.
  • Increased crush enhances bearing retention, ensuring stability under pressure.
  • Elimination of flash plating on the back improves heat transfer, maximizing grip between the bearings and housing.
  • Designed with increased eccentricity to accommodate bore distortion at high RPMs, facilitating effective hydrodynamic oil film formation.
  • 3/4 grooved main bearings optimize load-carrying surface area and oil flow to conrod bearings.
  • Tight wall tolerances help maintain consistent clearances for better performance.
  • Enlarged ID chamfers on bearing edges, tailored for compatibility with performance crankshafts.

Specifications

  • Size: STD
  • Oil Clearance: +0.001" Extra
  • Half Type: Identical Halves
  • Material: Tri-metal Hardened Steel Backs
  • Min Std Shaft Size: 1.7707in / 44.975 mm
  • Max Std Shaft Size: 1.7713in / 44.991 mm
  • Min Std Tunnel Size: 1.8898in / 48.000 mm
  • Max Std Tunnel Size: 1.8904in / 48.016 mm
  • Max Wall at Crown: 0.0583in / 1.481 mm
  • Max Overall Length: 0.709in / 18.00 mm

Customer Feedback

"I installed these bearings in my M52 engine, and the difference was noticeable right away. The engine runs smoother, and I feel more confident during high RPM drives. Definitely worth the investment!" - Mark T.

"These bearings fit perfectly and have held up well under performance conditions. I appreciate the attention to detail in the design." - Sara L.

Conclusion

If you're looking for a reliable and high-performance conrod bearing set for your BMW, the ACL 6B1490HX-STD is an excellent choice. With its thoughtful engineering and robust construction, it promises to meet the demands of both street and track enthusiasts.

Other Part Numbers:
ACL #acl6B1490HX-STD

Proposition 65

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

Vehicle
2003-2015
 BMW Z4

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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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