Cummins Westport Inc. Celebrates 10,000th ISL G Engine

published: July 6, 2011

VANCOUVER, BC – Cummins Westport Inc. (CWI), a leading provider of high-performance, alternative fuel engines for the global market, announced today the production and celebration of the 10,000th ISL G natural gas engine at the Cummins Engine Plant in Rocky Mount, N.C. (RMEP). Cummins Westport ISL G engines are sold globally in a variety of applications including shuttle and school buses, urban transit, vocational, and medium and heavy-duty truck and tractor applications.

“The Cummins Westport ISL G natural gas engine has logged millions of miles/kilometers of superior performance for operators on four continents,” said Roe East, CWI’s President. “We will continue to leverage the success of the proven technology CWI first introduced in the ISL G to develop future high-performance natural gas engine products.”

Since the launch of the ISL G four years ago, 10,000 engines have now been produced at the RMEP – making the ISL G the largest single automotive natural gas engine production in Cummins history.  Along with the ISL G production milestone, the RMEP also reached the 30,000 total natural gas engines production mark in June 2011. 

The ISL G is available as a factory option from leading bus and truck manufacturers and its ability to operate on compressed natural gas (CNG), liquefied natural gas (LNG), or renewable natural gas (RNG) or Biomethane has made it the leading natural gas engine in North America.  Natural gas is an abundant, cost effective, low carbon and low emissions fuel.

Key features include power ratings from 250 to 320 hp and up to 1,000 lb-ft of torque, diesel-like performance, and meeting global low emission standards with the use of a maintenance-free three way catalyst.  The ISL G does not require selective catalytic reduction (SCR) or a diesel particulate filter (DPF).

For more information about Cummins Westport and a video tour of the ISL G natural gas engine, visit: www.cumminswestport.com/products/islg.php

About Cummins Westport Inc.

Cummins Westport Inc. manufactures and sells the world's widest range of low-emissions alternative fuel engines for commercial transportation applications such as trucks and buses.  CWI is a joint venture of Cummins Inc. (NYSE:CMI), a corporation of complementary business units that design, manufacture, distribute and service engines and related technologies, including fuel systems, controls, air handling, filtration, emission solutions and electrical power generation systems, and Westport Innovations Inc. (NASDAQ:WPRT/TSX:WPT), a global leader in alternative fuel, low-emissions technologies that allow engines to operate on clean-burning fuels such as compressed natural gas, liquefied natural gas, hydrogen, and biofuels such as landfill gas. www.cumminswestport.com

Note: This document contains forward-looking statements about Cummins Westport’s business, operations, technology development or to the environment in which it operates including statements regarding the development of future engine products. Such statements are based on Cummins Westport’s estimates, forecasts, expectations, projections and strategic and other plans. These statements are not guarantees of future performance and actual results may vary. These statements additionally involve risks and uncertainties that are difficult to predict, or are beyond Cummins Westport’s control including risks relating to industry and products, commodity prices, governmental policies and regulation, technology innovations and general economic conditions. Consequently, readers should not place any undue reliance on such forward-looking statements. In addition, these forward-looking statements relate to the date on which they are made. Cummins Westport disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

About Westport

Westport engineers the world's most advanced natural gas engines and vehicles. More than that, we are fundamentally changing the way the world travels the roads, rails and seas. We work with original equipment manufacturers worldwide from design through to production, creating products to meet the growing demand for vehicle technology that will reduce both emissions and fuel costs. To learn more about our business, visit westport.comsubscribe to our RSS feed, or follow us on Twitter @WestportDotCom.

Cautionary Note Regarding Forward Looking Statements

This document contains forward-looking statements, including statements regarding the demand for our products, the future success of our business and technology strategies, investment, cash and capital requirements, intentions of partners and potential customers, the performance and competitiveness of our products and expansion of product coverage, future market opportunities, speed of adoption of natural gas for transportation, growth in demand as a result of new emission standards and terms of future agreements. These statements are neither promises nor guarantees, but involve known and unknown risks and uncertainties and are based on assumptions that may cause our actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activities, performance or achievements expressed in or implied by these forward looking statements. These risks and assumptions include risks and assumptions related to our revenue growth, operating results, industry and products, the general economy, conditions of and access to the capital and debt markets, governmental policies and regulation, technology innovations, fluctuations in foreign exchange rates, global government stimulus packages, the acceptance of natural gas vehicles in fleet markets, the relaxation or waiver of fuel emission standards, the inability of fleets to access capital or government funding to purchase natural gas vehicles, the sufficiency of bio methane for use in our vehicles, the development of competing technologies as well as other risk factors and assumptions that may affect our actual results, performance or achievements or financial position discussed in our most recent Annual Information Form and other filings with securities regulators. Readers should not place undue reliance on any such forward-looking statements, which speak only as of the date they were made. We disclaim any obligation to publicly update or revise such statements to reflect any change in our expectations or in events, conditions or circumstances on which any such statements may be based, or that may affect the likelihood that actual results will differ from those set forth in the forward looking statements except as required by National Instrument 51-102.

More Information

Cummins Westport Inc.

Darren Seed

Vice President, Investor Relations and Communications

T 604-718-2046

invest@westport.com

www.cumminswestport.com

Cummins Inc.

Jon Mills

External Communications

T 317-658-4540

jon.mills@cummins.com

www.cummins.com