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

The +0.25mm sizing indicates that these bearings are intended for use when the engine's crankshaft journals have been machined down by 0.25mm. This is a common practice during engine rebuilds to correct wear or imperfections on the crankshaft.

What is the construction of these main bearings?

These main bearings feature a bimetal construction with an aluminum base. This type of bearing material is chosen for its good load-carrying capacity and compatibility with various lubrication conditions.

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 to service the crankshaft for the specified engine.

Specifications

Brand: King Engine Bearings
Part #: MB524AM1.25
UPC: 611500163425

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

Name: King Engine Bearings Mitsubishi 4G63 (Size +0.25mm) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-mitsubishi-4g63-size-0-25mm-main-beari-t14-770594
Price: 65.86 USD
Availability: BackOrder

$65.86

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King Engine Bearings Mitsubishi 4G63 (Size +0.25mm) Main Bearing Set. A well-built bimetal bearing set for engine rebuilds.

Key Features

Fits a wide range of vehicles with the Mitsubishi 4G63 engine.
Main bearing set is sized at +0.25mm for use with machined crankshafts.
Constructed with a bimetal aluminum base for reliable performance.
Supports the crankshaft and ensures smooth engine operation.

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About this part

Product Details

Built with a bimetal aluminum base, this main bearing set from King Engine Bearings is designed for the Mitsubishi 4G63 engine. These bearings are crucial for supporting the crankshaft and ensuring it spins smoothly within the engine block. This particular set is sized at +0.25mm, meaning it's intended for an engine that has already been machined to that specification, often during a rebuild to correct wear or out-of-round conditions.

King Engine Bearings is a well-known name in engine components, and this set is a solid option for anyone rebuilding a 4G63. The bimetal construction offers good performance characteristics for a wide range of applications. This set fits a variety of vehicles, including popular models like the Mitsubishi Eclipse, Dodge Colt, and Hyundai Sonata, making it a versatile choice for many 4G63-powered projects.

When rebuilding an engine, using the correct size bearings is critical for proper oil clearance and long-term reliability. Ensure your crankshaft journals have been measured and machined to the +0.25mm size before installing this set.