What does the +0.50mm sizing mean for these bearings?

The +0.50mm sizing indicates these bearings are intended for a crankshaft that has been machined down by 0.50mm (approximately 0.020 inches). This is common when a crankshaft has wear or damage and needs to be reground to a larger size to restore its surface. These bearings will then provide the correct oil clearance with the reground crankshaft.

What is the pMax black coating?

The pMax black coating is a racing-inspired material applied by King Engine Bearings. It's designed to offer reduced friction and enhanced durability, helping to protect the bearings under demanding operating conditions.

Are these bearings suitable for a stock engine rebuild?

Yes, these bearings are suitable for stock engine rebuilds, especially if the crankshaft has been machined to a +0.50mm size. The pMax black coating also offers improved durability compared to standard bearings, which can be beneficial even in non-performance applications.

Specifications

Brand: King Engine Bearings
Part #: MB5771XP0.5
UPC: 611500610646

King Engine Bearings Hyundai G4KF Crankshaft (Size +0.50) Main Bearing Set

Name: King Engine Bearings Hyundai G4KF Crankshaft (Size +0.50) Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-hyundai-g4kf-crankshaft-size-0-50-main-t14-354098
Price: 161.18 USD
Availability: BackOrder

$161.18

On Backorder

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King Engine Bearings Hyundai G4KF Crankshaft Main Bearing Set (Size +0.50). A popular choice for engine rebuilds.

Key Features

Fits 11+ vehicle make/model combinations including Hyundai Sonata, Kia Optima, and Kia Sorento.
King Engine Bearings main bearing set for Hyundai G4KF crankshafts.
Sized at +0.50mm for use with a machined crankshaft.
Features King's pMax black coating for reduced friction and improved durability.
Designed for engine rebuilds and performance applications.

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About this part

Product Details

This is a King Engine Bearings main bearing set, specifically sized at +0.50mm for Hyundai G4KF crankshafts. These bearings are crucial for the health of your engine's rotating assembly, providing a smooth, low-friction surface for the crankshaft to spin within. If you're rebuilding the bottom end of your engine, especially a G4KF, these bearings are a solid option to consider for ensuring proper clearances and oil flow.

King's XP series bearings feature their pMax black coating, which is a racing-inspired material designed to handle the demands of performance applications. This coating helps to reduce friction and wear, offering improved durability over standard bearings. The +0.50mm sizing indicates these are intended for a crankshaft that has been machined down by 0.020 inches (0.50mm) to clean up wear or damage, requiring a slightly larger bearing to maintain the correct oil clearance. This set fits a range of popular Hyundai and Kia vehicles, including models like the Sonata, Optima, and Sorento.