King Engine Bearings MB5840XPC0.25 Performance Main Bearing Set Undersize - 0.25mm

The King Engine Bearings MB5840XPC0.25 is a high-performance main bearing set designed for demanding engine builds. This set features King's proprietary pMax Black™ trimet coating on the bearing surfaces, providing enhanced wear resistance and improved oil retention for superior protection during startup and high-load conditions.

Key Features:

• XPC (Extra Performance Coated) race bearing technology with pMax Black™ coating
• 0.25mm undersize for crankshaft journal refinishing applications
• Precision-engineered aluminum alloy construction with hardened steel backing
• Tighter tolerances for reduced bearing clearance and improved oil film control
• Enhanced fatigue strength for high-performance and racing applications
• Compatible with synthetic and conventional motor oils
• Complete main bearing set for full engine rebuild

King Engine Bearings are manufactured to OE specifications and beyond, making them ideal for performance rebuilds, racing applications, and high-output engines. The pMax Black™ coating reduces friction and wear while providing excellent embedability for contaminant particles, extending bearing life and protecting your crankshaft investment.