ACL Engine Crankshaft Main Bearing Set

Fits Most Dodge/Ram 6.2L/6.1L/5.7L (03-24)

5M2220A-.50

Overview:

The ACL Engine Crankshaft Main Bearing Set is engineered specifically for the Ram 1500 models from 2021 through 2024 equipped with the 5.7L HEMI V8 engine. Designed to meet or exceed OEM specifications, this bearing set ensures optimal crankshaft support and durability under demanding driving conditions. Whether you are performing an engine rebuild or routine maintenance, these main bearings provide reliable performance and protection against wear, helping to extend the life of your engine.

Ideal for professional mechanics and automotive enthusiasts alike, this bearing set is precision manufactured to maintain proper clearances and reduce friction, contributing to smoother engine operation and improved longevity.

Key Features:

ACL’s crankshaft main bearings incorporate advanced materials and manufacturing techniques to deliver superior performance and reliability. Key features include:

• Precision-engineered to fit the 5.7L HEMI V8 engine in Ram 1500 (2021–2024)
• Manufactured from high-quality bearing alloys for enhanced wear resistance
• Optimized surface finish to reduce friction and improve oil film retention
• Designed to maintain exact OEM clearances for proper crankshaft alignment
• Durable construction to withstand high loads and engine stresses
• Corrosion-resistant coating to protect against contaminants and corrosion
• Includes standard undersize (.50) bearings for precise fitment during rebuilds
• Tested to meet stringent quality control standards for consistent performance

Construction & Design:

ACL main bearings are crafted using premium bearing alloys that combine strength with excellent fatigue resistance. The materials are selected to provide a balance of durability and conformability, allowing the bearings to adapt to minor imperfections in the crankshaft journal surfaces. The bearing shells feature a finely polished surface finish that promotes optimal oil film formation, reducing metal-to-metal contact and minimizing wear.

The set is engineered to exacting tolerances, ensuring a precise fit within the engine block and around the crankshaft journals. This precision helps maintain proper oil clearance, which is critical for effective lubrication and heat dissipation during engine operation.

Installation & Fitment:

This main bearing set is designed for direct replacement in Ram 1500 trucks equipped with the 5.7L HEMI V8 engine from model years 2021 to 2024. Installation requires standard engine rebuild procedures, including careful measurement of crankshaft journal diameters and bearing clearances to ensure proper fit. The undersize (.50) bearings included in this set accommodate crankshafts that have been machined or ground to a .50mm undersize specification.

Professional installation is recommended to guarantee correct bearing alignment and torque specifications, which are essential for engine longevity and performance.

What's Included:

• Complete set of main bearings sized at .50 undersize
• Bearing shells for all main journals of the 5.7L HEMI V8 engine
• Installation instructions and specifications reference

Ideal For:

This bearing set is ideal for engine rebuilders, mechanics, and Ram 1500 owners seeking reliable replacement parts for their 5.7L HEMI V8 engines. It is especially suited for those performing engine overhauls, crankshaft grinding, or maintenance requiring main bearing replacement to restore engine durability and smooth operation.

ACL Race Series is known for performance engine bearings used across motorsports, with rod and main bearing options engineered for durability under high load and heat. Their positioning centers on racing-focused design, metallurgy, and engineering intended to stand up to demanding competition engines.