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

The +0.25mm sizing indicates that these bearings are larger than standard. They are intended for use in an engine block that has been machined (bored) to accept this larger size, typically done during an engine rebuild to achieve precise clearances.

What is the overlay material on these bearings?

King Engine Bearings uses a high-performance overlay material that is bonded to a steel backing. This combination is designed to withstand the demanding conditions of engine operation, providing durability and proper support for the crankshaft.

Are these bearings sold individually or as a set?

This product is a main bearing set, meaning it includes all the necessary main bearings required for a complete engine build for the specified application.

Specifications

Brand: King Engine Bearings
Part #: MB5851MC0.25
UPC: 611500617089

King Engine Bearings Mitsubishi 4N15 (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Mitsubishi 4N15 (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-mitsubishi-4n15-size-0-25mm-main-beari-t14-771020
Price: 85.80 USD
Availability: BackOrder

$85.80

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 Mitsubishi 4N15 (Size +0.25mm) Main Bearing Set. This +0.25mm set is for rebuilding your engine with tighter tolerances.

Key Features

This set is sized +0.25mm for use in a prepared engine block.
Features King's high-performance overlay material for durability.
Steel backing provides a solid foundation for the bearing surface.
Designed for proper crankshaft support and oil clearance in Mitsubishi 4N15 engines.

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About this part

Product Details

These main bearings are machined to a +0.25mm size, meaning they are intended for an engine block that has been bored out to match this specification. King Engine Bearings uses a high-performance overlay material that's designed to handle the pressures and heat found in modern engines. This overlay is bonded to a steel backing for strength and durability, ensuring your crankshaft stays properly supported.

When you're rebuilding the bottom end of your Mitsubishi 4N15, getting the bearing clearances just right is crucial for oil pressure and engine longevity. This set is made to King's specifications, offering a well-built component for your engine build. They are designed to fit right into a prepared block, making the installation process straightforward for a mechanic familiar with engine assembly.