ACL Main Bearing Set

2021–2024 Ram 1500 5.7L Hemi V8

5M2220A-STD

Overview:

The ACL Standard Size Main Bearing Set is engineered specifically for the Chrysler 345 5.7L Hemi V8 engine found in Ram 1500 trucks from 2021 through 2024. Designed to meet or exceed OEM specifications, this bearing set provides reliable support for the crankshaft, ensuring smooth engine operation and longevity. Ideal for engine rebuilds, repairs, or performance maintenance, these bearings offer a durable solution that maintains proper clearances and reduces friction under demanding conditions.

Whether you are a professional mechanic or an enthusiast performing an engine overhaul, the ACL main bearings deliver consistent quality and performance to keep your Ram 1500 running at its best.

Key Features:

ACL main bearings incorporate advanced materials and manufacturing techniques to provide dependable engine protection and performance. Key features include:

• Standard size bearings engineered for precise fitment in the 5.7L Hemi V8 engine
• High-quality tri-metal construction for excellent wear resistance and durability
• Optimized surface finish to reduce friction and improve oil film retention
• Strict manufacturing tolerances to ensure consistent bearing clearance and alignment
• Compatibility with factory specifications for seamless installation and reliable operation
• Enhanced load-carrying capacity to withstand the stresses of daily driving and towing
• Corrosion-resistant coatings to protect against engine contaminants and extend service life

Construction & Design:

ACL main bearings are manufactured using premium tri-metal materials, typically consisting of a steel backing, a copper-lead intermediate layer, and a soft overlay designed to conform to the crankshaft surface. This layered construction provides a balance of strength, conformability, and embeddability, which helps prevent damage from debris and uneven loading.

The bearings undergo precision machining and finishing processes to achieve exact dimensions and surface quality. This ensures optimal oil clearance and consistent performance under varying engine loads and temperatures. The robust design supports the demanding conditions of the 5.7L Hemi V8, including high combustion pressures and rotational speeds.

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 proper cleaning of bearing surfaces, checking crankshaft journal dimensions, and verifying bearing clearances with plastigauge or micrometers.

No modifications are necessary when using this standard size bearing set, making it a straightforward choice for engine rebuilds or repairs. Proper installation ensures reliable crankshaft support and helps maintain engine durability and smooth operation.

What's Included:

• Complete set of standard size main bearings for the Chrysler 345 5.7L Hemi V8
• Upper and lower bearing shells for all main journals
• Packaging and instructions for correct installation

Ideal For:

This ACL main bearing set is ideal for automotive technicians, engine builders, and Ram 1500 owners performing engine maintenance or rebuilds. It suits those seeking OEM-quality replacement parts that ensure reliable crankshaft support and long-term engine health. Whether restoring a worn engine or upgrading for durability, this bearing set provides a trusted foundation for your 5.7L Hemi V8 powerplant.

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.