Power Solutions International, Inc. designs, engineers, manufactures, markets, and sells engines and power systems across the United States, the rest of North America, the Pacific Rim, Europe, and other international markets. Its offerings include basic engine blocks integrated with fuel system parts, as well as fully packaged power systems that combine components such as front accessory drives, cooling systems, electronic systems, air intake systems, fuel systems, housings, power takeoff systems, exhaust systems, hydraulic systems, enclosures, brackets, hoses, tubes, packaging, telematics, and other assembled componentry. The company also designs and manufactures large, custom-engineered integrated electrical power generation systems for standby and prime power applications; sells emission-certified compression ignition and spark-ignition internal combustion engines; designs and fabricates power system enclosures; and sources electrification components. It provides mobile and stationary gensets for emergency standby, rental, prime power, demand response, microgrid, oil and gas, data center, renewable energy resiliency, and combined heat and power; and equipment such as forklifts, wood chippers, stump grinders, sweepers/industrial scrubbers, aerial lift platforms/scissor lifts, irrigation pumps, oil and gas compression, oil lifts, off-road utility vehicles, ground support equipment, ice resurfacing equipment, pump jacks, and battery packs; as well as vocational trucks and vans, school buses, transit buses, and terminal and utility tractors; and internal aftermarket and OEM-developed service parts programs. It serves original equipment manufacturers and end-user customers across the power systems, industrial, and transportation end-markets, including large and multinational organizations. The company was founded in 1985 and is headquartered in Wood Dale, Illinois.