ACL Bearings 5M1524P-.50 Performance Main Bearing Set Undersize - 0.50mm

The ACL Bearings 5M1524P-.50 is a high-performance main bearing set designed for precision engine building and rebuilds. This set features a 0.50mm undersize specification, engineered to accommodate reground crankshafts and restore proper oil clearances in worn engine blocks.

Key Features:

• Tri-metal construction with hardened steel backing for superior strength and heat dissipation
• 0.50mm undersize design for machined crankshaft journals
• Manufactured to exacting micron-level tolerances for consistent wall thickness and crush
• Improved eccentricity to compensate for bore distortion at high-RPM operation
• Large chamfers to accommodate crankshaft fillets and maximize oil flow
• No flash plating on backing to maximize heat transfer and bearing retention
• Enhanced seizure resistance for demanding applications

ACL bearings are precision-manufactured in Tasmania, Australia, and have earned a global reputation for quality and performance in both OEM and aftermarket applications. Each bearing set delivers the precise tolerances needed to maintain proper oil clearance and ensure reliable engine operation.