CAT Marine, based in the United States, is a prominent division of Caterpillar Inc. that specializes in developing and manufacturing high-performance marine engines and propulsion systems. They offer a diverse range of products, including propulsion engines, generator sets, and auxiliary engines tailored for various marine applications, such as commercial fishing, pleasure craft, and workboats. Known for their durability and efficiency, CAT Marine products are designed to meet the demanding requirements of the maritime industry, ensuring reliable performance in challenging environments.