King Engine Bearings MB1336XP0.25-1 XP-Series Performance Main Bearing Undersize - 0.25mm

The King Engine Bearings MB1336XP0.25-1 is a high-performance XP-Series main bearing designed for demanding racing and performance applications. This bearing features a 0.25mm undersize specification for use with reground crankshafts, making it ideal for engine rebuilds and performance upgrades.

XP-Series Performance Features:

• Tri-metal construction with proprietary pMaxBlack overlay for superior load capacity and wear resistance
• Narrowed bearing design optimized for large-radius performance crankshafts
• Enlarged, chamfered oil holes for improved oil flow and lubrication
• Bull's Eye Tolerance™ technology ensures precision wall thickness and dimensional accuracy
• Non-scaled hardening process for exceptional durability under extreme loads

King Quality Standards:

• Manufactured to precision finished wall thicknesses that cannot be resized
• Computer-monitored manufacturing process with real-time thickness adjustments
• Race-proven design tested in aviation and motorsports applications
• 0.25mm undersize for crankshafts that have been ground for wear or damage

King Engine Bearings has specialized exclusively in engine bearing manufacturing since 1960, applying decades of racing experience to create bearings that deliver reliable performance in both competition engines and street applications. The XP-Series represents King's most advanced bearing technology for enthusiasts who demand maximum performance and durability.