The King Engine Bearings Main Bearings MB5269AM0.75 are high-quality, precision-engineered bearings designed for use in automotive engines. These bearings are made from durable materials and feature advanced engineering techniques to ensure optimal performance and longevity. They are specifically designed to fit perfectly into the main bearing housing of the engine, providing a smooth and reliable surface for the crankshaft to rotate on. These bearings have a 0.75 undersize to accommodate for any wear on the crankshaft, ensuring a perfect fit. They are ideal for use in high-performance engines and are trusted by professional engine builders and racers worldwide.