ACL Bearings 4M1215A-.25 Main Bearing Set Hyundai V6 2.5L 2.7L .25mm Undersize

The ACL Bearings 4M1215A-.25 is a .25mm undersize main bearing set designed for Hyundai V6 2.5L (G6BV) and 2.7L (G6BA) engines from 2000 and newer. This precision-engineered bearing set is ideal for engine rebuilds where crankshaft journals have been machined undersize, ensuring proper clearances and optimal performance in your Hyundai V6 powerplant.

Key Features:

• Tri-metal construction combining design, metallurgy and engineering for high performance applications
• Designed to withstand higher RPM conditions
• High strength overlay plate with reduced thickness for improved fatigue properties
• Elimination of flash plating on the back of the bearings to improve heat transfer and maximize grip
• Increased eccentricity to compensate for bore distortion at high rpm and assist in hydrodynamic oil film formation
• 3/4 grooved design optimizes bearing load carrying surface area and oil flow to connecting rod bearings
• Manufactured to exacting tolerances with micron tolerance machining for consistent accuracy in wall thickness and crush

ACL has been manufacturing high-quality engine bearings for over 70 years from their Launceston, Tasmania, Australia facility using ISO certified manufacturing processes. The .25mm undersize specification accommodates crankshafts that have been ground undersize during engine rebuilding, providing the correct bearing clearances for reliable operation.