Cummins is a company that designs, manufactures, sells, and services diesel and natural gas engines and powertrain-related component products, including filtration, aftertreatment, turbochargers, fuel systems, controls systems, air handling systems, transmissions, electric power generation systems, batteries, and electrified power systems. It offers engine, generators and power systems, components, and new power products. The company serves bus, construction, mining, marine, rail, oil and gas, agricultural, and various other markets.