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

Main bearings support the crankshaft within the engine block. They allow the crankshaft to rotate smoothly while handling the immense forces generated during combustion, helping to maintain proper engine performance and reduce friction.

Do I need to measure my crankshaft before ordering these bearings?

Yes, it's important to measure your crankshaft journals to ensure they are within the standard size specifications. If your crankshaft has been machined undersize during a previous rebuild, you would need to order the corresponding undersize bearings.

What is the warranty on this Omix main bearing set?

This Omix main bearing set comes with a limited 5-year warranty. Please refer to the manufacturer's warranty documentation for full details and any exclusions.

OMIX

Specifications

Brand: OMIX
Part #: 17465.35
UPC: 804314130237

OMIX

Omix Main Bearing Set Std 72-90 Jeep CJ & Wrangler

Name: Omix Main Bearing Set Std 72-90 Jeep CJ & Wrangler
Brand: OMIX
Price: 94.32 USD
Availability: InStock

$94.32

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Omix Main Bearing Set Std 72-90 Jeep CJ & Wrangler. Essential for engine rebuilds to restore performance.

Key Features

Fits 1972-1990 Jeep CJ, Cherokee, Comanche, Grand Wagoneer, J10, J20, Scrambler, and Wrangler models with 3.8, 4.0, and 4.2 liter engines.
Standard size bearings are essential for engine rebuilds to restore original performance.
Direct fit replacement for OE part number 4289M.
Includes a complete set of main bearings for one engine.
Backed by a limited 5-year warranty from Omix.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

When you're rebuilding a worn-out engine, replacing the main bearings is a critical step to getting your Jeep back to its original performance. These Omix standard main bearing sets are designed to fit a wide range of Jeep models from 1972 through 1990, including popular vehicles like the CJ5, CJ7, Cherokee, and Wrangler YJ, all equipped with 3.8, 4.0, or 4.2 liter engines and a standard crankshaft.

Internal engine wear surfaces, like crankshaft journals and bearings, naturally wear down over time. This set provides a direct replacement for the original equipment, ensuring a proper fit and function. Omix is known for offering well-built replacement engine parts to help you get your Jeep running strong again. This set includes all the necessary bearings for a complete engine installation.