What does the +0.25mm sizing mean for these main bearings?

The +0.25mm sizing indicates that these bearings are intended for use when the crankshaft journals have been machined down by 0.25mm. This is a common practice during engine rebuilding to clean up wear or minor damage on the bearing surfaces.

What type of engine is this bearing set best suited for?

This bearing set is made from a bi-metal aluminum material that is ideal for medium-load engines. The 4.7L engine found in the specified Dodge and Jeep vehicles falls into this category.

Are these bearings environmentally friendly?

Yes, these bearings utilize a lead-free composite material. This makes them an environmentally safe option for your engine build.

Specifications

Brand: King Engine Bearings
Part #: MB5284SI0.25
UPC: 611500422706

King Engine Bearings Chrysler/Jeep 287Ci 4.7L (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Chrysler/Jeep 287Ci 4.7L (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-chrysler-jeep-287ci-4-7l-size-0-25mm-m-t14-770623
Price: 60.07 USD
Availability: BackOrder

$60.07

On Backorder

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Fits 2000-2005 Dodge Dakota. King Engine Bearings 4.7L main bearing set, +0.25mm size. Ideal for medium-load engines.

Key Features

Fits 2000-2005 Dodge Dakota, 2000-2005 Dodge Durango, 2002-2005 Dodge Ram 1500, and 1999-2004 Jeep Grand Cherokee.
Main bearing set sized +0.25mm for use with machined crankshaft journals.
Constructed from bi-metal aluminum material for medium-load engines.
Features a lead-free, environmentally safe composite.

⚠️ 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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About this part

Product Details

If you're rebuilding the bottom end of your 2000-2005 Dodge Dakota, Durango, Ram 1500, or Jeep Grand Cherokee with the 4.7L engine, a fresh set of main bearings is crucial. These main bearings from King Engine Bearings are specifically sized at +0.25mm, meaning they are designed to be used when the crankshaft journals have been machined down by 0.25mm to clean up wear or damage. This ensures a proper fit and oil clearance for your rebuilt engine.

King Engine Bearings specializes in creating well-built bearings, and this set is made from a bi-metal aluminum material. This construction is ideal for medium-load engines like the 4.7L, offering a good balance of strength and performance. They also use a lead-free composite, which is an environmentally safe option for your build.