King Engine Bearings MB5778XP.026 XP Series Main Bearing Set Oversize - 026

The King Engine Bearings MB5778XP.026 is a high-performance main bearing set designed for VW/Audi 2.0T TSI engines including CCTA, CBFA, BYT, CDNC, CCZD, and CPSA applications. This .026mm (.001 inch) oversize bearing set is engineered specifically for high-load, long-duration racing and performance applications using forged steel aftermarket crankshafts.

Advanced XP Series Technology:

• pMax Black tri-metal construction is 24% harder than conventional tri-metal race bearings
• Enhanced tri-metal copper lead construction with nickel barrier and lead/tin/copper Babbitt overlay over steel backing
• SecureBond adhesion process delivers superior stability between layers
• Intermediate layer load capacity of 17,000 PSI with overlay fatigue resistance of 10,200 PSI
• Metallurgically enhanced and hardened 0.0005 inch performance overlay resists surface fatigue
• 17% more fatigue resistance than nearest competitor with industry's highest hardness level up to 18.1 HV

Precision Engineering Features:

• Bull's Eye Tolerance with wall thickness tolerances of +/- 0.0001 inch for exceptional consistency
• Narrowed design for large-radius crankshafts
• Enlarged, chamfered oil holes with 1/2 groove configuration for improved oiling and uncompromised lower shell load capacity
• Medium eccentricity enables optimum load distribution
• ElliptiX oil slot/oil hole hybrid design for improved oil ingress

King Engine Bearings manufactures all bearings in-house under rigorous quality control, ensuring only the highest quality components reach performance engine builders. The XP Series delivers 15-30% greater load capacity than traditional bearings, making it ideal for circle track, off-road, offshore racing, and other demanding applications requiring steel crankshafts.