ACL Engine Crankshaft Main Bearing Set

2021–2024 Ram 1500 5.7L HEMI V8

5M2220A-.25

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, maintenance, or upgrading your vehicle’s internal components, these main bearings provide reliable performance and longevity.

Ideal for professional mechanics and automotive enthusiasts alike, this bearing set helps maintain precise crankshaft alignment and reduces friction, contributing to smoother engine operation and extended engine life.

Key Features:

Built with advanced materials and precision engineering, the ACL main bearing set offers the following benefits:

• Exact fitment for 2021–2024 Ram 1500 with 5.7L HEMI V8 engines
• Manufactured from high-quality bearing alloys for enhanced wear resistance
• Optimized design to reduce friction and improve oil film retention
• Precision machining ensures tight tolerances and consistent performance
• Durable construction to withstand high loads and engine stresses
• Corrosion-resistant surface treatment for extended service life
• Engineered to maintain crankshaft stability and reduce vibration
• Compatible with standard rebuild procedures and OEM installation methods

Construction & Design:

ACL main bearings are crafted using premium bearing alloys that combine strength and fatigue resistance, essential for supporting the crankshaft during high RPM and load conditions. The bearing shells feature a multi-layer design with a steel backing and a precision-machined overlay that promotes excellent conformability and embedability. This construction helps protect the crankshaft journal from wear and damage caused by contaminants or debris.

Each bearing shell is manufactured to exacting tolerances, ensuring a perfect fit within the engine block and around the crankshaft journals. The surface finish is optimized to maintain a stable oil film, which is critical for reducing metal-to-metal contact and minimizing friction.

Installation & Fitment:

This bearing set is designed for direct replacement in Ram 1500 trucks from model years 2021 to 2024 equipped with the 5.7L HEMI V8 engine. Installation requires standard engine rebuild procedures, including proper cleaning of bearing surfaces, checking crankshaft journal dimensions, and applying assembly lubricant. No modifications to the engine block or crankshaft are necessary when using this bearing set.

For best results, it is recommended to follow the vehicle manufacturer’s torque specifications and installation guidelines to ensure optimal bearing performance and engine reliability.

What's Included:

• Complete set of main bearing shells sized for 0.25mm undersize journals
• Installation instructions and specifications

Ideal For:

This ACL Engine Crankshaft Main Bearing Set is ideal for:

• Professional engine rebuilders and automotive repair shops servicing Ram 1500 trucks
• Enthusiasts performing engine maintenance or upgrades on 5.7L HEMI V8 engines
• Owners seeking reliable, OEM-quality replacement bearings for their Ram 1500
• Applications requiring durable bearings capable of handling daily driving and towing demands

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.