What is the PMaxBlack overlay?

The PMaxBlack overlay is a feature King Engine Bearings uses to enhance the load-carrying capabilities of their bearings. It's designed to handle higher pressures within the engine, contributing to better durability.

What does 'optimal crush height' mean for these bearings?

Radialock, a feature on these bearings, helps achieve an optimal crush height. This ensures the bearings fit snugly and securely in the engine block, which is crucial for proper oil clearance and preventing bearing spin.

Are these bearings a direct replacement for the original equipment?

Yes, these are standard size main bearings designed as a direct replacement for the specified BMW M5 and M6 models. They are engineered to meet the performance needs of the S85B50A engine.

King Engine Bearings BMW S85B50A Crankshaft Main Bearings - Size STD

Specifications

Brand: King Engine Bearings
Part #: MB637XP
UPC: 611500605550

King Engine Bearings BMW S85B50A Crankshaft Main Bearings - Size STD

Name: King Engine Bearings BMW S85B50A Crankshaft Main Bearings - Size STD
Brand: King Engine Bearings
Price: 397.13 USD
Availability: InStock

$397.13

Only 2 left in stock

Fits 2006-2010 BMW M5. Standard size main bearings with PMaxBlack for superior load capacity.

Key Features

Fits 2006-2010 BMW M5 and 2006-2010 BMW M6.
Standard size crankshaft main bearings.
Features PMaxBlack overlay for superior load capacity.
Includes Radialock design for optimal crush height.
Constructed with a tri-metal copper-based material.

⚠️ 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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Fits these vehicles

BMW M5 2006-2010
BMW M6 2006-2010

Product Details

The PMaxBlack overlay on these main bearings is a notable design choice, offering superior load capacity for the demanding S85B50A engine found in your 2006-2010 BMW M5. As bearing specialists, King Engine Bearings focuses on providing well-built components, and this set is no exception. They are constructed from a tri-metal copper-based material, which is known for its excellent performance in high-stress engine environments.

The Radialock feature is designed to provide optimal crush height, ensuring the bearings seat properly and maintain consistent oil clearance. This attention to detail in design and material selection helps maintain proper oil flow and reduce friction, which is critical for the longevity of your engine. When rebuilding or refreshing the bottom end of your M5, these bearings are a solid option for ensuring reliable performance.