ACL Bearings 4M2037A-.25 Performance Connecting Rod Bearing Set Oversize - 0.25mm

The ACL Bearings 4M2037A-.25 is a high-performance connecting rod bearing set designed for engine rebuilds and performance applications. This bearing set features a 0.25mm oversize dimension to accommodate crankshaft journals that have been machined during rebuilding, ensuring precise fitment and optimal oil clearance.

Key Features:

• 0.25mm oversize design for rebuilt engines with machined crankshaft journals
• Tri-metal copper-lead construction with steel backing for superior durability
• Enhanced bearing capacity compared to standard OEM bearings
• Optimized material composition for improved heat conduction and oil distribution
• Manufactured to tight tolerances for consistent bearing clearance
• Suitable for high-performance street and racing applications

ACL Race Series bearings are recognized throughout the motorsports industry for their exceptional durability under extreme operating conditions. The tri-metal layering system combines a steel backing with a durable copper-lead alloy and thin overlay to provide excellent conformability and embedability, helping to absorb small contaminants and reduce the risk of premature failure. These bearings are engineered to withstand elevated loads, high RPMs, and increased power output while maintaining optimal oil film formation to minimize metal-to-metal contact and extend engine life.