What is the PMaxBlack material?

PMaxBlack is a proprietary material developed by King Engine Bearings. It's a tri-metal, copper-based compound designed to offer enhanced load capacity compared to standard bearing materials.

What does 'optimal crush height' mean for a bearing?

Crush height refers to how much the bearing 'crushes' or deforms when installed into the engine block or connecting rod. Proper crush height ensures the bearing is held securely in place and makes good contact with its housing.

Does this bearing set come with all the necessary components for installation?

This set includes the crankshaft main bearings. It's recommended to consult your vehicle's service manual for any additional components or preparation steps required for installation.

Specifications

Brand: King Engine Bearings
Part #: MB5771XP
UPC: 611500584923

King Engine Bearings Hyundai G4KF Crankshaft Main Bearing Set

Name: King Engine Bearings Hyundai G4KF Crankshaft Main Bearing Set
Brand: King Engine Bearings
SKU: king-engine-bearings-king-engine-bearings-hyundai-g4kf-crankshaft-main-bearing-s-t14-217973
Price: 161.18 USD
Availability: BackOrder

$161.18

On Backorder — Expected to ship by Oct 22, 2026

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

King Engine Bearings crankshaft main bearing set MB5771XP. Features PMaxBlack for superior load capacity and Tri-metal copper-based material.

Key Features

Fits 11+ Hyundai and Kia models including Sonata, Optima, and Sorento.
Features King's PMaxBlack material for superior load capacity.
Utilizes a tri-metal copper-based construction for durability.
Includes Radialock feature for optimal crush height and proper bearing seating.
Designed as a direct replacement for your vehicle's original crankshaft main bearings.

⚠️ 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

The PMaxBlack material used in this King Engine Bearings crankshaft main bearing set is a key feature, offering improved load capacity for your engine's rotating assembly. This tri-metal, copper-based material is designed to handle the stresses of daily driving and more demanding use, making it a solid option for rebuilding or repairing your Hyundai or Kia engine. These bearings are a direct fit for a wide range of vehicles, including models like the Hyundai Sonata, Kia Optima, and Kia Sorento.

King has specialized in engine bearings since 1960, focusing on producing well-built components. The Radialock feature on these bearings helps ensure optimal crush height, which is critical for proper seating and oil retention within the main bearing journals. This attention to detail in design and material selection contributes to reliable engine performance and longevity.