King Engine Bearings MB5243XPC0.25 Main Bearing Set

The King Engine Bearings MB5243XPC0.25 is a high-performance main bearing set engineered for precision and durability in demanding engine applications. This set features King's pMax Black coating technology, which provides exceptional protection against wear and corrosion while maintaining tight clearances for optimal oil film thickness.

Key Features:

• 0.25mm (0.010") undersize for crankshaft regrinding applications
• pMax Black tri-metal construction with advanced polymer coating
• Engineered for high-performance and racing applications
• Precise tolerances for consistent bearing crush and oil clearance
• Enhanced fatigue strength and embedability characteristics
• Compatible with synthetic and conventional motor oils

King Engine Bearings are manufactured to OEM specifications and beyond, making them ideal for engine rebuilds, performance upgrades, and racing applications. The XP designation indicates this is part of King's performance series with enhanced materials and coatings for extreme conditions.