What does the +0.25mm size mean for my engine rebuild?

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

What is the Tri-M+ babbitt overlay?

The Tri-M+ overlay is an enhanced babbitt layer applied to the copper-based material of the bearing. It's designed to improve oil retention and wear resistance, contributing to the bearing's overall durability and performance in medium-load engines.

Are these bearings suitable for heavy towing applications?

These bearings are described as ideal for medium-load engines. For applications involving very heavy or constant towing, it's always best to consult with a professional engine builder to ensure all components meet the specific demands of your usage.

Specifications

Brand: King Engine Bearings
Part #: MB5724CP0.25
UPC: 611500555589

King Engine Bearings General Motors Duramax Diesel (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings General Motors Duramax Diesel (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-general-motors-duramax-diesel-size-0-2-t14-770904
Price: 110.78 USD
Availability: BackOrder

$110.78

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King Engine Bearings Main Bearing Set for GM Duramax Diesel. Size +0.25mm. Ideal for medium-load engines.

Key Features

Fits Chevrolet and GMC Duramax Diesel vehicles, including 2007-2016 Chevrolet Silverado 2500 HD and GMC Savana 2500 models.
Main bearing set sized at +0.25mm for use with machined crankshaft journals.
Constructed with a tri-metal copper-based material.
Features King's Tri-M+ enhanced babbitt overlay for improved performance.
Ideal for medium-load engine applications.

⚠️ 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 General Motors Duramax Diesel engine, getting the main bearings right is crucial. This set from King Engine Bearings is specifically made for those engines and comes at a +0.25mm size, meaning it's designed to be used when the crankshaft journals have been machined down by 0.25mm to clean up wear or damage. King has been specializing in bearings since 1960, focusing on making them as good as they can be.

These bearings use a tri-metal copper-based material with an enhanced babbitt overlay, which King calls Tri-M+ technology. This construction is well-suited for medium-load engines like many Duramax applications. It helps ensure a solid oil film and good wear resistance, which is exactly what you want when you're putting an engine back together. This set fits a wide range of Chevrolet and GMC trucks and vans, including models like the Silverado 2500 HD and Savana 2500.