King Engine Bearings MB5827SI0.25 Main Bearing Set Undersize - 0.25mm

The King Engine Bearings MB5827SI0.25 is a precision-engineered main bearing set designed for high-performance and racing applications. This set features a 0.25mm (0.010") undersize specification, making it ideal for engines with crankshaft journals that have been machined or reconditioned during rebuilds.

Key Features:

• 0.25mm (0.010") undersize for machined crankshafts
• High-strength tri-metal construction with steel backing
• Advanced pMax Black™ coating for superior wear resistance
• Precision tolerances for optimal oil clearance and performance
• Engineered for high-load and high-RPM applications
• Complete main bearing set for full engine rebuild

King Engine Bearings are manufactured to OEM specifications and beyond, utilizing advanced materials and coatings to provide exceptional durability and longevity. The pMax Black™ polymer coating offers improved seizure resistance, better compatibility with modern low-viscosity oils, and enhanced protection during cold starts and high-stress conditions. This bearing set is trusted by professional engine builders and racing teams worldwide for critical engine builds where reliability and performance cannot be compromised.