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ACL - BMW M20M50M52M54-1919CC 80.0mm Bore 66.0mm Stroke .025mm Oversized Conrod Bearing Set 6B1490H-.025
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High strength and excellent seizure resistance ensure reliable fit and consistent clearances for your engine.
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What Stands Out
Precision Engineering
Crafted with exact specifications, this bearing set ensures optimal fitment and performance, reducing engine wear and enhancing longevity for BMW M20/M50/M52/M54 engines.
Enhanced Durability
The oversized design provides improved load-bearing capacity, making these bearings ideal for high-performance applications while maintaining exceptional strength and reliability.
Engine Compatibility
Designed specifically for popular BMW engine models, this bearing set is an excellent upgrade for enthusiasts seeking enhanced performance and efficiency in their vehicles.
Product Details
| Item Weight | 0.3 lbs (140 grams) |
Who Should Buy?
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Engine Builders
Professional engine builders can use these bearings for precision builds ensuring optimal performance and reliability.
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Performance Enthusiasts
Car enthusiasts who are upgrading their BMW engines will find these bearings beneficial for enhanced durability.
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Racers
Racers looking for lightweight, high-performance options will appreciate the quality and specifications of these conrod bearings.
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Casual Drivers
Everyday drivers may not benefit from specialized bearings tailored for high-performance applications.
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Budget Builders
Those with tight budgets might find these premium bearings too costly for standard engine rebuilds.
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Non-BMW Owners
This product is not suitable for vehicles outside the BMW M20/M50/M52/M54 engine range.
Product Description
ACL - BMW M20M50M52M54-1919CC 80.0mm Bore 66.0mm Stroke .025mm Oversized Conrod Bearing Set 6B1490H-.025
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Customer Questions & Answers
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Question:
What is the advantage of the high strength steel backing?
Answer: It improves rod bearing strength and retention, ensuring durability under heavy loads. -
Question:
How do extended oil grooves benefit my engine?
Answer: They provide less interruption to the oil supply, enhancing engine lubrication and efficiency. -
Question:
What does increased eccentricity do for performance?
Answer: It compensates for bore distortion, aiding in the formation of a hydrodynamic oil film for better performance.
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12 June 2026 · via Trustpilot
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Features & Benefits
- Manufactured to exacting micron tolerances for consistent accuracy.
- High strength steel backing enhances rod bearing strength and retention.
- Increased crush improves bearing retention and heat dissipation.
- Eccentricity feature compensates for bore distortion for optimal performance.
- Extended oil grooves ensure uninterrupted oil supply for engine efficiency.
- Precision measurement systems deliver reliable fit and performance.
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