King Engine Bearings MB5840XPC.026 XPC Series Main Bearing Set Oversize - 0.26mm

The King Engine Bearings MB5840XPC.026 is a premium XPC Series main bearing set designed for Gen III Chrysler Hemi engines, featuring an oversize dimension of 0.26mm (0.010 inches). This race-grade bearing set represents the pinnacle of King's performance bearing technology, combining advanced tri-metal construction with innovative coating technology for maximum durability and protection.

Advanced pMaxKote Coating Technology:

The XPC Series features King's proprietary pMaxKote nano-composite polymer coating applied over the pMaxBlack overlay. This fourth-layer coating contains ceramic nano-composite particles that enhance wear resistance and protect bearings during metal-to-metal contact and cavitation without altering the bearing's original precision wall thickness dimension. The coating is factory-applied during the manufacturing process, ensuring consistent quality and performance.

Tri-Metal Construction:

• Steel backing for structural strength and stability
• Enhanced copper-lead intermediate layer with increased tin content (4.5%) for 22% greater hardness and load capacity up to 17,000 psi
• pMaxBlack overlay with 5% copper content and nano-scaled hardening process for superior fatigue strength
• pMaxKote polymer coating for exceptional wear resistance during marginal lubrication conditions

Precision Manufacturing:

• Bull's Eye wall thickness tolerance of ±0.0001 inch—far tighter than industry standards
• SecureBond micro-etch surface preparation strengthens tri-metal structural integrity
• Narrowed design for large radii crankshafts
• Enlarged, chamfered oil holes for improved lubrication
• Available in various grooving configurations for optimal oil distribution

Performance Benefits:

• Superior protection during metal-to-metal contact scenarios
• Enhanced resistance to cavitation erosion
• Exceptional wear resistance without added thickness
• High load capacity for extreme performance applications
• Proven durability in racing and high-performance street builds

This 0.26mm oversize bearing set is ideal for engine rebuilds requiring slightly oversized bearings due to crankshaft machining or wear. King Engine Bearings are trusted by professional engine builders and racers worldwide for their exceptional quality, precision manufacturing, and race-proven performance.