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ACL Engine Conrod Bearing Set for BMW M20/M50/M52/M54 - 1919CC, 80.0mm Bore, STD Size - 6B1490H-STD
ACL Engine Conrod Bearing Set for BMW M20/M50/M52/M54 - 1919CC, 80.0mm Bore, STD Size - 6B1490H-STD - Image 2 ACL Engine Conrod Bearing Set for BMW M20/M50/M52/M54 - 1919CC, 80.0mm Bore, STD Size - 6B1490H-STD - Image 2

ACL 6B1490H-STD Conrod Bearing Set

The ACL 6B1490H-STD Conrod Bearing Set is engineered specifically for the BMW M20, M50, M52, and M54 engines, boasting a displacement of 1919CC with an 80.0mm bore and a 66.0mm stroke. These bearings are crafted to meet the demands of high-performance applications, ensuring reliability and durability under increased RPM conditions.

Key Features

  • Tri-Metal Construction: Each bearing features a high-strength overlay plate with a reduced thickness, enhancing fatigue resistance for extended performance.
  • Hardened Steel Backs: The hardened steel backs improve support for the bearing lining, ensuring better retention within the housing during operation.
  • Increased Crush: Enhanced crush design improves bearing retention, allowing for optimal performance even under high load conditions.
  • Improved Heat Transfer: The elimination of flash plating on the back of the bearings promotes better heat dissipation and maximizes grip between the bearing and housing.
  • Enhanced Eccentricity: Increased eccentricity compensates for bore distortion at high RPMs and aids in the development of hydrodynamic oil films.
  • Optimized Oil Flow: The 3/4 grooved main bearings optimize the load-carrying surface area and ensure efficient oil flow to the conrod bearings.
  • Tight Tolerances: Consistent wall tolerances maintain precise clearances, crucial for engine performance.
  • Chamfered Edges: Enlarged ID chamfers accommodate large fillet radii on performance crankshafts, ensuring compatibility with aftermarket components.

Specifications

  • Size: Standard (STD)
  • Oil Clearance: Standard
  • Half Type: Identical Halves
  • Material: Tri-metal Hardened Steel Backs
  • Min Standard Shaft Size: 1.7707 in / 44.975 mm
  • Max Standard Shaft Size: 1.7713 in / 44.991 mm
  • Min Standard Tunnel Size: 1.8898 in / 48.000 mm
  • Max Standard Tunnel Size: 1.8904 in / 48.016 mm
  • Max Wall at Crown: 0.0588 in / 1.493 mm
  • Max Overall Length: 0.709 in / 18.00 mm

Fitment

This conrod bearing set is confirmed to fit the following model:

  • BMW Z4 (2003-2015)

Other Part Numbers:
ACL #acl6B1490H-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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