XP-Series Crankshaft Main Bearings 1/2 Groove 65.0mm

The King Bearings XP-Series crankshaft main bearing set, model MB5840XPSTDX, is engineered for optimal performance and durability in demanding applications. Constructed from advanced tri-metal materials, these bearings offer superior wear resistance and load-bearing capacity, making them suitable for both standard maintenance and high-performance rebuilds. The XP-Series bearings utilize a 1/2 groove design for enhanced oil flow and hydrodynamic lubrication, ensuring a protective oil film between the crankshaft and bearing surfaces. This design is crucial for engines operating under high temperatures and extreme stress. The standard replacement grade type ensures precise fitment and performance characteristics expected from OE components, while the 65.0mm inside diameter is specific to their intended applications. This bearing set is specifically designed for Chrysler, Dodge, Jeep, and Ram vehicles equipped with Hemi V8 engines, including the 5.7L, 6.1L, and 6.4L displacements. The STDX size designation indicates a larger internal diameter compared to standard bearings, providing increased oil clearance beneficial for high-performance engines that experience elevated temperatures or significant stress.