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Doosan PSI, The New Name of Reliable Clean Solutions

World Class Products

Doosan PSI provides integrated turnkey engine and power solutions to original equipment manufacturers in the power generation, oil and gas, pump and compressor, agricultural, and industrial markets and offers a complete line of fuel-flexible, low-emission engines ranging from 8-Liters to 22-Liters of displacement.

Cleantech Innovator

Doosan PSI makes adapting easy with fuel-flexible, emission certified engines to meet the demands of every application. PSI is one of the largest providers of industrial gas and alternative fuel engines in North America and has over 20 years of experience serving emission control system solutions.

Performance Engines

Buying engines isn’t only about power and torque, it’s about value, performance, durability and reliability to your end customer. At PSI building custom power systems is what we’re all about. We take engines and transform them into ruggedized power systems that are ideally suited to their end use application.


Doosan PSI LLC, Engineers & Manufactures Emission-Certified, Alternatively-Fueled Engines & Power Systems

The new joint venture between Doosan Infracore Co., Ltd (042670:KS) and Power Solutions International, Inc. (PSIX) provides integrated turn-key engine and power solutions to leading global original equipment manufacturers.  Our unique in-house design, prototyping, engineering and testing capacities mean we can customize clean, high-performance engines that run on a wide variety of fuels including natural gas, propane, biogas, gasoline to meet and exceed applicable environmental standards throughout the world.

Doosan Headquarters

Doosan Infracore America Corporation
2905 Shawnee Industrial Way
Suwanee‎ GA‎ 30024
United States of America

PSI Headquarters

Power Solutions International, inc.
201 Mittel St.
Wood Dale, IL 60191
United States of America
1.630.350.9400 (Main)