King Engine Bearings MB5566XPC0.25 Performance Main Bearing Set Oversize - 0.25mm

The King Engine Bearings MB5566XPC0.25 is a high-performance main bearing set engineered for demanding applications. This precision-manufactured bearing set features King's proprietary XP (eXtra Protection) coating on the bearing surface, providing enhanced protection during critical engine start-up conditions and improved wear resistance throughout the bearing's service life.

Key Features:

• XP-Series pMax Black coating for superior protection and reduced friction
• 0.25mm (0.010") oversize for engines requiring precision machined crankshaft journals
• Tri-metal construction with steel backing, copper-lead intermediate layer, and polymer overlay
• Precision tolerances for optimal oil clearance and bearing crush
• Designed for high-performance street, racing, and rebuilt engine applications
• Complete main bearing set for full engine rebuild

King Engine Bearings are manufactured to OE specifications and beyond, utilizing advanced materials and coating technologies. The 0.25mm oversize dimension allows engine builders to restore proper clearances when crankshafts have been machined to remove wear or damage. The pMax Black coating reduces friction and provides exceptional protection against wear and corrosion.