King Engine Bearings Main Bearing Set

Fits Most Jeep/Ram 5.7L/3.7L/3.6L (05-12)

MB4102SI1.0

Overview:

The King Engine Bearings Main Bearing Set is engineered specifically for Chrysler 3.7L (226 cubic inch) engines found in a wide range of Dodge, Jeep, and Ram vehicles. This high-quality main bearing set is designed to provide reliable support for the crankshaft, ensuring smooth engine operation and longevity. Ideal for professional mechanics and automotive enthusiasts performing engine rebuilds or repairs, this set delivers durable performance and precise fitment for your vehicle’s main bearings.

Built to meet or exceed OEM specifications, these bearings help maintain proper oil clearance and reduce friction, contributing to improved engine efficiency and durability. Whether you’re restoring an older vehicle or maintaining a daily driver, King Engine Bearings offers a trusted solution for dependable engine performance.

Key Features:

King Engine Bearings combines advanced materials and manufacturing techniques to deliver a main bearing set that stands up to demanding conditions. Key features include:

• Bimetal construction with an aluminum-silicon base for excellent wear resistance and durability
• Includes thrust washers to control crankshaft end play and maintain proper alignment
• Precision-engineered to OEM tolerances for a perfect fit and optimal oil clearance
• Compatible with Chrysler 3.7L (226) engines used in multiple Dodge, Jeep, and Ram models
• Designed to withstand high loads and reduce friction for smoother engine operation
• Manufactured with strict quality control to ensure consistent performance and reliability
• Ideal for engine rebuilds, repairs, and performance upgrades

Construction & Design:

This main bearing set features a bimetal design, utilizing an aluminum-silicon alloy base that provides a strong, wear-resistant surface capable of handling the stresses of daily driving and heavy-duty use. The aluminum-silicon base offers excellent conformability and embeddability, allowing the bearings to adapt to minor imperfections in the crankshaft journal while protecting against debris damage.

The included thrust washers are precision-machined to control axial movement of the crankshaft, preventing excessive end play that can lead to premature wear or engine damage. King Engine Bearings’ commitment to quality ensures that each bearing shell is manufactured to exacting standards, delivering consistent thickness and surface finish for reliable oil film formation and long service life.

Installation & Fitment:

Designed for direct replacement, this main bearing set fits Chrysler 3.7L engines installed in a broad range of Dodge Ram 1500, Dakota, Durango, Jeep Grand Cherokee, and Ram Dakota models from 2002 through 2013. Installation requires standard engine rebuild procedures, including proper cleaning of bearing surfaces, checking crankshaft journals for wear, and measuring clearances with plastigauge or micrometers.

No modifications are necessary when installing this set, making it an ideal choice for professional rebuilders and DIY enthusiasts alike. Always follow manufacturer torque specifications and assembly guidelines to ensure optimal bearing performance and engine longevity.

What's Included:

• Main bearing shells for all main journals
• Thrust washers for crankshaft end play control

Ideal For:

This King Engine Bearings Main Bearing Set is perfect for:

• Automotive technicians performing engine rebuilds or repairs on Chrysler 3.7L engines
• Enthusiasts restoring Dodge Ram 1500, Dakota, Durango, Jeep Grand Cherokee, or Ram Dakota vehicles
• Anyone seeking OEM-quality replacement bearings for reliable, long-lasting engine performance
• Applications requiring durable bearings capable of handling daily driving and moderate performance demands

King Engine Bearings specializes in engine bearings with a strong footprint in performance and racing, developing advanced bearing materials and designs for high-load engines. Builders and racers rely on King for main and rod bearings engineered to handle higher cylinder pressures and sustained RPM without sacrificing reliability.