ACL Engine Connecting Rod Bearing Set

2003–2025 Dodge Ram 1500 / Ram 2500 / Magnum / Charger / Jeep Grand Cherokee / Challenger / Chrysler 300 / Grand Cherokee L V8 345 (5.7L Hemi)

8B1808A-.50

Overview:

The ACL V8 345 (5.7L Hemi) Engine Connecting Rod Bearing Set is engineered to meet the demanding requirements of Chrysler’s iconic 5.7L Hemi V8 engines. Designed for a wide range of vehicles including Dodge Ram 1500 and 2500, Dodge Magnum, Charger, Challenger, Jeep Grand Cherokee, Grand Cherokee L, and Chrysler 300 models from 2003 through 2025, this bearing set ensures reliable performance and durability under high-stress conditions.

Ideal for professional mechanics, performance enthusiasts, and rebuilders, these connecting rod bearings provide critical support for the engine’s rotating assembly. They help maintain precise clearances and reduce friction between the connecting rods and crankshaft, contributing to smooth engine operation and longevity.

Key Features:

ACL’s connecting rod bearing set incorporates advanced materials and manufacturing techniques to deliver consistent quality and performance. Key features include:

• Precision-engineered to OEM specifications for the 5.7L Hemi V8 engine
• Durable bearing shells designed to withstand high loads and temperatures
• Optimized oil clearance for superior lubrication and reduced wear
• Half-size (.50) undersized bearings for custom rebuilds and machining adjustments
• High-quality tri-metal construction for enhanced fatigue resistance
• Corrosion-resistant coating to protect against engine contaminants
• Consistent thickness and roundness for reliable crankshaft support
• Compatible with a broad range of Chrysler, Dodge, and Jeep models from 2003 to 2025

Construction & Design:

ACL bearings are crafted using a tri-metal layering process that combines a steel backing with a copper-lead alloy and a thin overlay of babbitt material. This construction provides excellent conformability and embedability, allowing the bearings to adapt to minor imperfections in the crankshaft surface while resisting fatigue and seizure.

The bearing shells are manufactured with tight tolerances to ensure proper fit and optimal oil film thickness. The .50 undersize dimension allows for precise machining during engine rebuilds, ensuring the correct bearing clearance is maintained for peak engine performance and longevity.

Installation & Fitment:

Installation of the ACL connecting rod bearing set requires standard engine rebuild procedures, including careful measurement of crankshaft journals and bearing clearances. These bearings are designed to fit directly into the connecting rods of the specified 5.7L Hemi engines without modification.

Proper installation ensures reliable crankshaft support and smooth engine operation. It is recommended that installation be performed by experienced technicians using appropriate tools and measurement equipment to verify clearances and alignment.

What’s Included

• Complete set of connecting rod bearings sized .50 undersize for V8 345 (5.7L Hemi) engines
• Packaging with part number and fitment details for easy identification

Ideal For:

This bearing set is ideal for engine rebuilders, performance tuners, and mechanics working on Chrysler, Dodge, and Jeep vehicles equipped with the 5.7L Hemi V8 engine. Whether restoring a classic Dodge Magnum or upgrading a modern Ram 1500, these bearings provide the reliability and precision needed for high-performance and daily-driven applications alike.

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.