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

The +0.25mm sizing indicates that these bearings are intended for use when the crankshaft journals have been machined down by 0.25mm during an engine rebuild. This allows for a proper fit and oil clearance with the undersized journals.

What type of engine load are these bearings best suited for?

These bearings are made with a bi-metal aluminum material and a lead-free composite, making them ideal for medium-load engines. They are a well-built option for many standard rebuilds.

Are these bearings compatible with all Hemi engines?

This specific set is designed for the Gen III Hemi engines, including the 5.7L, 6.1L, and 6.4L displacements. It is not compatible with earlier or later generations of Hemi engines.

Specifications

Brand: King Engine Bearings
Part #: MB5840SI0.25
UPC: 611500605963

King Engine Bearings Chrysler/Dodge Gen Iii Hemi 5.7/6.1/6.4 (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Chrysler/Dodge Gen Iii Hemi 5.7/6.1/6.4 (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-chrysler-dodge-gen-iii-hemi-5-7-6-1-6--t14-771013
Price: 22.00 USD
Availability: BackOrder

$22.00

On Backorder

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

King Engine Bearings main bearing set for Chrysler/Dodge Gen III Hemi 5.7/6.1/6.4 engines. Size +0.25mm. A well-built option for engine rebuilds.

Key Features

Fits Chrysler/Dodge Gen III Hemi 5.7L, 6.1L, and 6.4L engines.
Main bearing set is sized +0.25mm for use with machined crankshaft journals.
Constructed with a bi-metal aluminum material for medium-load engines.
Features a lead-free composite that is environmentally safe.
King Engine Bearings has specialized in bearing production since 1960.

⚠️ 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

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

About this part

Product Details

If you're rebuilding the bottom end of your Gen III Hemi engine, getting the right main bearings is crucial for proper crankshaft support and oil flow. This main bearing set from King Engine Bearings is specifically made for 5.7L, 6.1L, and 6.4L Hemi engines found in a range of vehicles like the Dodge Charger, Jeep Grand Cherokee, and Chrysler 300.

These bearings are constructed from a bi-metal aluminum material, making them a well-built choice for medium-load engines. They feature a lead-free composite that's environmentally safe. This set is sized at +0.25mm, meaning it's intended for use when the crankshaft journals have been machined down by that amount during an engine rebuild. King has been specializing in bearings since 1960, focusing on supplying high-quality components for engine builds.