What is the main function of main bearings in an engine?

Main bearings support the crankshaft within the engine block, allowing it to rotate smoothly. They are crucial for maintaining proper oil clearance around the crankshaft journals, which is essential for lubrication and reducing friction.

Does this Clevite main bearing set include all the necessary bearings for the 4.0L engine?

Yes, this is a complete main bearing set designed for the AMC/Jeep 241 4.0L engine. It includes all the main bearings required for a standard engine rebuild.

What is the significance of the micro-smooth surface finish on these bearings?

The micro-smooth surface finish on the bearing overlay helps to create and maintain a thin film of oil between the bearing and the crankshaft. This oil film is critical for reducing friction and wear, ensuring the longevity of the engine's rotating assembly.

1991-2006 Jeep Wrangler Main Bearing Set

Name: Clevite AMC/Jeep 241 4.0L Eng 1991-06 Main Bearing Set
Brand: Clevite
SKU: clevite-clevite-amc-jeep-241-4-0l-eng-1991-06-main-bearing-set-t14-58001
Price: 69.98 USD
Availability: BackOrder

Clevite AMC/Jeep 241 4.0L Eng 1991-06 Main Bearing Set

$69.98

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits Jeep Wrangler 1991-1995, 1997-2006. Clevite 4.0L main bearing set for reliable engine performance.

Key Features

Fits 1991-2006 Jeep Wrangler, 1991-2001 Jeep Cherokee, 1991-1992 Jeep Comanche, and 1993-2004 Jeep Grand Cherokee.
Designed for the AMC/Jeep 241 4.0L engine.
Multi-layer bearing material with a steel backing for strength.
Bronze-iron alloy overlay with a micro-smooth surface finish helps maintain oil film.
Built to original equipment specifications for proper fit and function.

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Will this fit your vehicle?

Product Details

These Clevite main bearings are built to the original equipment specifications for your AMC/Jeep 4.0L engine. Main bearings are critical components that sit between the crankshaft and the engine block, supporting the crankshaft as it spins. When it's time to rebuild your engine or replace worn bearings, a well-made set like this from Clevite ensures proper crankshaft support and oil clearance.

This set is specifically designed for the 4.0L inline-six engine found in many Jeep models. Clevite uses a multi-layer bearing material with a steel backing for strength and a bronze-iron alloy overlay with a micro-smooth surface finish to help maintain oil film and reduce friction. This construction helps to ensure the longevity of your engine's rotating assembly.

If you're working on a 4.0L Jeep engine from 1991 through 2006, this main bearing set is a solid option. It's important to ensure correct oil clearances are set during installation, so refer to your vehicle's service manual for the proper procedure.