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ACL 4B2903H-STD High Performance Rod Bearing Set
The ACL 4B2903H-STD Rod Bearing Set is engineered for those who demand reliability and performance from their Mini Cooper's engine. This set is designed specifically for the Mini Cooper models produced between 2001 and 2018, ensuring a perfect fit and optimal performance.
Key Features
- Tri-metal Construction: Each bearing features a high-strength overlay plate with reduced thickness, enhancing fatigue resistance during high RPM conditions.
- Hardened Steel Backs: The hardened steel backs improve support for the bearing lining and enhance retention within the housing, crucial for high-performance applications.
- Improved Bearing Retention: Increased crush enhances bearing retention, ensuring stability and performance under varied driving conditions.
- Optimized Heat Transfer: The elimination of flash plating on the back of the bearings facilitates better heat dissipation and maximizes grip between the bearings and their housing.
- Enhanced Eccentricity: Designed to compensate for bore distortion at high RPM and to assist in hydrodynamic oil film formation, ensuring consistent lubrication.
- 3/4 Grooved Design: The main bearings are designed to optimize load-carrying surface area and enhance oil flow to the connecting rod bearings.
- Precision Tolerances: Tight wall tolerances help maintain consistent clearances, crucial for performance applications.
- Enlarged ID Chamfers: Chamfers on bearing edges accommodate large fillet radii on performance crankshafts, enhancing compatibility with upgraded components.
Specifications
- Size: STD, .025, .25
- Oil Clearance: Standard
- Half Type: Identical Halves
- Material: Tri-metal with hardened steel backs
- Min Standard Shaft Size: 1.7320 in / 43.992 mm
- Max Standard Shaft Size: 1.7326 in / 44.008 mm
- Min Standard Tunnel Size: 1.8504 in / 47.000 mm
- Max Standard Tunnel Size: 1.8512 in / 47.020 mm
- Max Wall at Crown: 0.0586 in / 1.489 mm
- Max Overall Length: 0.640 in / 16.25 mm
The ACL 4B2903H-STD Rod Bearing Set is a critical upgrade for Mini Cooper owners seeking to enhance engine durability and performance. With its advanced engineering and high-quality materials, this bearing set is designed to meet the demands of spirited driving and competition use.
Other Part Numbers:
ACL #acl4B2903H-STD
Proposition 65
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2001-2018 Mini Cooper |
Cooper | 2001-2018 |
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 RacingEngine 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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