Cummins manufactures engines and aftermarket products for heavy and medium duty trucks, buses, RVs, and light commercial vehicles and for equipment in the construction, agriculture, mining, marine, rail and government markets. Products include diesel generators used in recreational vehicles, commercial vehicles, pleasure boats plus diesel and gas generator sets, switches and switchgear used in com
mercial facilities for emergency back-up and prime power. Cummins Filtration provides Fleetguard and Nelson filters, silencers, emission solutions and exhaust systems.