INDIANAPOLIS, March 5, 2014 (GLOBE NEWSWIRE) -- Power Solutions International, Inc. (PSI) (Nasdaq:PSIX), a leader in the design, engineering and manufacture of emissions-certified alternative-fuel and conventional power systems, will present its lineup of alternatively fueled, on-highway products at the NTEA Work Truck Show and Green Truck Summit in Indianapolis, Indiana, March 5-7. The company will exhibit a propane-powered PSI 8.8-liter engine, installed in a Capacity of Texas terminal tractor. In addition, PSI will display the General Motors 4.8-liter engine, 6.0-liter engine, and 6L90E transmission.

"We're excited to show the capabilities of our 8.8-liter LP engine as we head into the final weeks of completing its EPA and CARB certification," said Jeremy Lessairs, Director of Marketing and Communications at PSI. "The Work Truck Show is a great venue for us to demonstrate our ability to bring quality, OEM-backed alternative-fuel engines to the market."

PSI and Capacity debuted their first collaboration, a Capacity TJ5000 tractor powered by PSI's 8.8-liter engine, at last year's Mid-America Trucking Show, in order to highlight the attractive economics of natural gas and propane engines for the medium-duty truck market. The new 8.8-liter engine offers mobile fleets a cost-competitive and easy-to-integrate alternative to diesel engines.

PSI continues to expand its on-highway lineup, which was launched in 2011 with a newly designed 8.8-liter "big block" engine. A multi-year supply agreement with GM to sell 4.8-liter and 6.0-liter engines for on-highway use enables the company to offer a full range of alternatively-fueled engines for Class 4 through Class 7 applications.

According to Lessaris, PSI's on-highway products offer across-the-board improvements in power and fuel efficiency, and can be equipped to run on natural gas, propane, and gasoline. In particular, he noted that PSI's 8.8-liter is unique in that no other comparable engine combines performance with fuel flexibility.

PSI will present its power systems in booth number 5273 at the Work Truck Show, March 5-7 at the Indiana Convention Center in Indianapolis, IN. The Work Truck Show is North America's largest work truck event, offering fleet professionals 500,000 sq. ft. of the latest in advanced technologies, alternative fuels and equipment innovations for vocational trucks.

For more information on PSI, visit http://www.psiengines.com.

About Power Solutions International, Inc.

Power Solutions International (PSI) is a leader in the design, engineering and manufacture of emissions-certified, alternative-fuel power systems. PSI provides integrated turnkey solutions to leading global original equipment manufacturers in the industrial and on-road markets. The company's unique in-house design, prototyping, engineering and testing capacities allows PSI to customize clean, high-performance engines that run on a wide variety of fuels including natural gas, propane, biogas, diesel and gasoline.

PSI develops and delivers complete .97 to 22-liters power systems, including the 8.8-liter engine aimed at the industrial and on-road markets, including: medium duty fleets, delivery trucks, school buses and garbage/refuse trucks. PSI power systems are currently used worldwide in power generators, forklifts, aerial lifts, and industrial sweepers, as well as in oil and gas, aircraft ground support, agricultural and construction equipment.

CONTACT: Jeremy Lessaris

         Global Director of Marketing & Communications

         Power Solutions International

         1.630.350.9400

         jlessaris@psiengines.com

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