OUR VISION

Envisioning a future where our Power Solutions inspire positive change

Engines

1.5M+

2023 Sales

$459M

Employees

800+

Square Feet

800k+

Power Solutions International, Inc. (PSI) stands at the forefront of designing, engineering, and manufacturing advanced, emission-certified engines and power systems. We deliver integrated turnkey solutions to OEMs and end-users in the power, industrial, and electrification sectors.

PSI’s engine portfolio spans displacements ranging from .97 liter to 88 liters. Powered by advanced controls, our engines are engineered to operate efficiently across a wide array of fuels including natural gas, propane, gasoline, diesel, and biofuels.

We supply engine and other solutions for various stationary and mobile power generation applications including standby, prime, demand response, microgrid, and co-generation power (CHP). Additionally, our engines serve a myriad of industrial needs encompassing forklifts, agricultural and turf machinery, industrial sweepers, aerial lifts, irrigation pumps, ground support and construction equipment.

Our Facilities

Power Solutions International’s manufacturing facilities reflect our commitment to high-quality powertrains and technology. Our ISO-certified facilities are equipped with cutting-edge technology and utilize lean manufacturing methods, giving us the flexibility to meet high production demands in an efficient manner.
For more about our physical plants, click here.

The exterior of PSI's engine dress trim operations facility in Wood Dale, Ill.
PSI's Darien, Wis., facility.
The exterior of PSI's Itasca, Ill., facility
The exterior of PSI's Beloit, Wis., facility.
A picture of PSI's facility in Waterford Township, Mich.
A picture of PSI's testing facility in Burr Ridge, Ill.
PSI Engines and Weichai Partnership for Advanced Engine Solutions

Manufacturing Capabilities

PSI designs and manufactures engines that can meet specific requirements and provide power regardless of the conditions in which they operate.PSI’s manufacturing and engineering staff are experts in not only building engines, but also in understanding the specific applications they will power. We bring a vast amount of application design and design engineering experience to each application and provide a total value-added power solution to OEMs across several industries.

We offer a complete line of emission-certified industrial engines and serve as the Manufacturer of Record for all our engines. PSI assumes all legislative duties related to certification, enabling customers to focus solely on their products.

  • CNC Machining
  • Advanced applications engineering disciplines
  • Material optimization and simulation
  • Specialized manufacturing
  • Calibration and emissions
  • Electronics, software and controls
  • Turbo and fuel systems
  • Engine simulation, testing and validation
  • Components and assembly
  • Cooling package development
  • Technical training programs