The King Engine Bearings Main Bearings MB1190XA0.75 are high-quality engine bearings designed for use in automotive engines. These bearings are made from durable materials and have a precision design to ensure optimal performance and longevity. They are specifically designed for engines with a 0.75 undersize journal and are suitable for a variety of engine types and sizes. These main bearings provide excellent load capacity and reduce friction, helping to improve engine efficiency and reduce wear and tear. They are a reliable choice for engine rebuilds and upgrades, providing a smooth and reliable operation for your vehicle.