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Westport Announces Agreement with Caterpillar for Evaluation of Fuel System Technologies for High Horsepower Engines

published: May 17, 2011

VANCOUVER, BC – Westport Innovations Inc. (TSX:WPT / NASDAQ:WPRT), a global leader in alternative fuel, low-emissions transportation technologies, today announced that it has entered into an agreement with Caterpillar, Inc. (NYSE:CAT) to evaluate direct injection, natural gas fuel system technologies for possible use on Caterpillar’s large engines.  As part of the agreement, the parties will combine their respective technologies and components to develop a fuel system that will be evaluated on a multi-cylinder test engine.  Through this evaluation project, Westport and Caterpillar are seeking to demonstrate that the integration of their respective direct injection, natural gas technologies can deliver the high performance and high efficiency requirements large engine applications will demand.  Under the terms of the agreement, the evaluation is expected to be completed in 2012, with program expenses shared by both Caterpillar and Westport.

"We are excited to work with Caterpillar, the world’s leading manufacturer of construction and mining equipment, diesel and natural gas engines, industrial gas turbines and diesel-electric locomotives," said Bruce Hodgins, Vice President, Market Development of Westport Innovations. "This is a significant opportunity for both companies to demonstrate the viability of direct injection natural gas technology on large engines.”

“Caterpillar looks forward to working with Westport, a global leader in alternative fuel technologies, to evaluate how we may combine our respective technologies to enhance customer value in the markets we serve,” said M. Lou Balmer-Millar, Product Manager, Caterpillar Fuel Systems of Caterpillar Inc.

Caterpillar high horsepower engines are used in a variety of electric power, industrial, machine, marine and petroleum applications worldwide.

About Westport Fuel Systems

At Westport Fuel Systems, we are driving innovation to power a cleaner tomorrow. We are inventors, engineers, manufacturers and suppliers of advanced clean-burning fuel systems and components that can change the way the world moves. Our technology delivers performance, fuel efficiency and environmental benefits to address the challenges of global climate change and urban air quality. Headquartered in Vancouver, Canada, we serve our customers in more than 70 countries with leading global transportation and industrial application brands. At Westport Fuel Systems, we think ahead. For more information, visit www.wfsinc.com.

More Information

Westport Fuel Systems
(Investor Inquiries)

Todd Skene

Manager, Investor Relations

T 604-718-2046

invest@wfsinc.com

www.wfsinc.com

Caterpillar Inc.

Rachel Potts

Corporate Public Affairs

T 309-675-6892

potts_rachel_a@cat.com

www.cat.com