ACL Engine Crankshaft Main Bearing Set

Fits Most Dodge/Jeep 5.7L/3.9L/3.7L (02-10)

4M7214A-.75

Overview:

The ACL Engine Crankshaft Main Bearing Set is engineered specifically for Chrysler and Jeep 3.7L V6 engines from 2001 onward, providing reliable and precise fitment for a range of Dodge and Jeep models. This bearing set is designed to restore the critical interface between the crankshaft and engine block, ensuring smooth rotation and optimal engine performance. Ideal for mechanics, rebuilders, and enthusiasts performing engine overhauls or repairs, this set delivers durability and consistent operation under demanding conditions.

Whether you are servicing a Dodge Ram 1500, Dakota, or Durango, this bearing set meets stringent quality standards to maintain engine integrity and longevity. It is an essential component for maintaining proper oil clearance and reducing wear on the crankshaft journals.

Key Features:

ACL’s crankshaft main bearing set offers precision engineering and robust construction to support engine reliability and performance. Key features include:

• Exact OEM fitment for Dodge Ram 1500 (2002–2010), Dodge Dakota (2004–2010), and Dodge Durango (2004–2009) with 3.7L V6 engines
• Manufactured from high-quality bearing materials for enhanced wear resistance and durability
• Optimized oil clearance to ensure proper lubrication and reduce friction
• Engineered to withstand high loads and thermal stresses typical of V6 engine operation
• Precision machined surfaces for smooth crankshaft rotation and reduced vibration
• Corrosion-resistant coatings to extend service life
• Complete set designed to replace all main bearings for comprehensive engine rebuilds

Construction & Design:

This bearing set is crafted using premium-grade materials selected for their strength and wear characteristics. The bearings feature a multi-layer design that includes a durable steel backing with a high-quality overlay to resist scoring and fatigue. ACL employs advanced manufacturing processes to ensure tight tolerances and consistent thickness, critical for maintaining proper oil film and bearing clearance.

The design focuses on balancing durability with smooth operation, minimizing friction while providing robust support to the crankshaft journals. This results in improved engine longevity and reliable performance under both normal and high-stress conditions.

Installation & Fitment:

Installation of the ACL Engine Crankshaft Main Bearing Set requires standard engine rebuild procedures and should be performed by a qualified technician. The bearings are designed for direct replacement without modification, fitting precisely to the specified Dodge and Jeep 3.7L V6 engines. Proper cleaning, inspection, and measurement of crankshaft journals and bearing bores are essential to ensure correct fit and clearance.

This set supports a wide range of factory engine configurations, making it suitable for rebuilds, repairs, or performance maintenance on the following vehicles:

• Dodge Ram 1500 (2002–2010) including Laramie, SLT, ST, and SXT trims
• Dodge Dakota (2004–2010) including Base, Big Horn, Laramie, Lone Star, SLT, Sport, ST, SXT, TRX, and TRX4 trims
• Dodge Durango (2004–2009) including SE, SLT, ST, and SXT trims
• Dodge Nitro (2007–2011) including Heat, SE, SLT, and SXT trims
• Jeep Commander (2006–2010) including Base, Sport, and 65th Anniversary Edition
• Jeep Liberty (2002–2012) including 65th Anniversary Edition, Jet, Limited, Renegade, Rocky Mountain Edition, and Sport trims

What’s Included

• Complete set of main crankshaft bearings sized to .75 undersize
• Packaging and instructions for proper installation

Ideal For:

This bearing set is ideal for automotive professionals, engine rebuilders, and enthusiasts performing maintenance or complete engine overhauls on Dodge and Jeep vehicles equipped with the 3.7L V6 engine. It is especially suited for restoring engine reliability and performance after wear or damage to the main bearing surfaces.

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.