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

The +0.25mm sizing indicates 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 clearance with the undersized journals.

What is the benefit of the PMaxBlack overlay?

The PMaxBlack overlay is a specialized coating that offers superior load capacity. This means the bearings can better withstand the high pressures and stresses within the engine, contributing to their longevity and performance.

Are these bearings sold individually or as a set?

This product is a main bearing set, meaning it includes all the necessary main bearings for your engine's crankshaft. You will receive the complete set needed for installation.

Specifications

Brand: King Engine Bearings
Part #: MB5771XP0.25
UPC: 611500610639

King Engine Bearings Hyundai G4KF Main Bearing Set - Size +0.25mm

Name: King Engine Bearings Hyundai G4KF Main Bearing Set - Size +0.25mm
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-hyundai-g4kf-main-bearing-set-size-0-2-t14-432505
Price: 145.06 USD
Availability: InStock

$145.06

Only 4 left in stock

King Engine Bearings Hyundai G4KF Main Bearing Set - Size +0.25mm. Features PMaxBlack for superior load capacity.

Key Features

Fits 11+ vehicle make/model combinations including Hyundai Sonata, Kia Optima, and Kia Sorento.
Main bearing set sized at +0.25mm for use with machined crankshaft journals.
Features King's PMaxBlack overlay for superior load capacity.
Utilizes Radialock design for optimal crush height.
Constructed with a tri-metal copper-based material for durability.

⚠️ 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

These main bearings from King Engine Bearings feature a tri-metal copper-based material, a solid choice for rebuilding or repairing your engine. They are specifically sized at +0.25mm, meaning they are meant to be used when the crankshaft journals have been machined down by that amount during an engine rebuild. This set is designed for Hyundai G4KF engines and fits a wide range of vehicles including the Hyundai Sonata, Kia Optima, and Kia Sorento.

King's PMaxBlack overlay is a notable feature here, offering superior load capacity compared to standard bearings. This helps ensure the bearings can handle the stresses of engine operation, especially in performance applications or after engine work. The Radialock design also helps maintain optimal crush height, which is crucial for proper bearing seating and oil retention within the engine block. These well-built bearings are a popular choice for mechanics looking for reliable engine components.