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

The +0.25mm sizing indicates that these bearings are designed for a crankshaft that has been machined down by 0.25mm. This is typically done to correct for wear or to achieve specific internal engine clearances during a rebuild.

What type of engine is this bearing set designed for?

This main bearing set is specifically designed for Mitsubishi 4G63 and 4G63T engines, commonly found in various models from Mitsubishi, Dodge, Eagle, Hyundai, and Plymouth. It is particularly suited for the 1992 model year and many others within the fitment range.

Are these bearings suitable for high-performance or racing applications?

These bearings feature a lead-free composite and bi-metal aluminum material, making them ideal for low to medium-load engines. For high-performance or racing applications that experience extreme loads, a different bearing material or design might be more appropriate.

Specifications

Brand: King Engine Bearings
Part #: MB5227AM0.25
UPC: 611500239519

King Engine Bearings Mitsubishi 4G63/4G63T (92) (Size +0.25mm) Main Bearing Set

Name: King Engine Bearings Mitsubishi 4G63/4G63T (92) (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-mitsubishi-4g63-4g63t-92-size-0-25mm-m-t14-770548
Price: 54.18 USD
Availability: BackOrder

$54.18

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King Engine Bearings Mitsubishi 4G63/4G63T (92) (Size +0.25mm) Main Bearing Set. Bi-metal aluminum material for reliable engine performance.

Key Features

Fits a wide range of vehicles including Dodge Colt, Mitsubishi Eclipse, and Hyundai Sonata.
Main bearing set for Mitsubishi 4G63 and 4G63T engines.
Size is +0.25mm, intended for a machined crankshaft.
Constructed with a bi-metal aluminum material.
Features a lead-free composite that is environmentally safe.
Ideal for low to medium-load engines.

⚠️ 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 a Mitsubishi 4G63 or 4G63T engine, specifically the 1992 model year and many others, a solid set of main bearings is crucial. This main bearing set from King Engine Bearings is built with a bi-metal aluminum material, making it a well-built option for engines that don't see extreme loads. King has been specializing in bearings since 1960, focusing on providing dependable components for engine builds.

These bearings feature a lead-free composite, which is environmentally safe and ideal for applications where the engine isn't pushed to its absolute limits. The +0.25mm sizing means these are intended for a crankshaft that has been machined down by 0.25mm to correct for wear or to achieve a specific clearance. It's important to ensure your crankshaft has been properly measured and machined to this size before installing these bearings.