Last updated on April 16, 2014 at 5:23 EDT

Cummins Westport Announces New Heavy-Duty Natural Gas Engine

February 20, 2012

~ISX12 G Natural Gas Engine Targets Regional Trucking, Vocational and
Refuse Markets in North America~

VANCOUVER, Feb. 20, 2012 /PRNewswire/ – Cummins Westport Inc., announced today
the ISX12 G, a 12 litre heavy-duty, factory built dedicated natural gas
engine for regional haul truck / tractor, vocational and refuse
applications.  The new ISX12 G is currently in field trials with full
production expected to commence in early 2013.

The ISX12 G natural gas engine is based on the Cummins ISX12 diesel
engine platform, the newest member of Cummins heavy duty engine
family.  The ISX12 G will operate exclusively on natural gas (CNG or
LNG) utilizing Cummins Westport’s proprietary spark-ignited,
stoichiometric combustion with cooled exhaust gas recirculation (SEGR) 
technology, first introduced with the 8.9 litre ISL G.

The ISX12 G features three-way catalyst aftertreatment, which is
packaged as a muffler and is maintenance free.  No diesel particulate
filter or selective catalytic reduction aftertreatment will be
required.  Preliminary specifications include a range of ratings to 400
hp and 1,450 lb-ft torque, optional engine brake, and manual and
automatic transmission capability to meet customer and original
equipment manufacturer requirements.  The ISX12 G will be manufactured
in Cummins’ heavy-duty engine plant in Jamestown, New York.

“This is an important product development for Cummins Westport given the
increasing demand for natural gas vehicles in the heavy-duty market,”
said Roe East, President of Cummins Westport.  “The ISX12 G will offer
customers heavy-duty performance, reliability, and durability and a
choice of either compressed natural gas or liquefied natural gas as a

The ISX12 G target markets at launch are North American regional haul
and vocational truck/tractor, and refuse applications, where demand for
natural gas vehicles is growing.  Anticipated end-use applications in
the regional haul market segment include intermodal and distribution
operation, pickup and delivery.  Potential post-launch market
opportunities include motor coach and specialty vocational

The ISX12 G is expected to be certified at launch to meet the U.S.
Environmental Protection Agency and California Air Resources Board
emission standards of 0.20 g/bhp-hr NOx and 0.01 g/bhp-hr PM.  The
engine is additionally expected to be capable of meeting EURO VI and
pending U.S. greenhouse gas and fuel economy regulations.

Partial funding in support of the ISX12 G engine development has been
received from the U.S. Department of Energy’s National Renewable Energy
Laboratory (NREL) and the California Energy Commission in conjunction
with the Gas Technology Institute.

About Cummins Westport Inc.

Cummins Westport Inc. designs, engineers and markets spark-ignited
natural gas engines for North American commercial transportation
applications such as trucks and buses.  Cummins Westport 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 (CNG), liquefied natural gas (LNG), hydrogen, and biofuels
such as landfill gas. www.cumminswestport.com

Note: This document contains forward-looking statements about Cummins Westport’s business, operations, markets, technology
development, timing for launch of the ISX12 G and its certifications
and uses and  to the environment in which Cummins Westport operates,
which are based on Cummins Westport’s estimates, forecasts and
projections. These statements are not guarantees of future performance
and involve known and unknown risks and uncertainties that are
difficult to predict, or are beyond Cummins Westport’s control and are
based on assumptions that may cause our actual results, levels of
performance, activity or achievement to be materially different from
that implied by these forward looking statements.  These risks,
uncertainties and assumptions include those relating to our industry
and products, technological development, demand for natural gas
vehicles as well as other risk factors and assumptions. 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. The
contents of any website referenced in this press release are not
incorporated herein by reference.

SOURCE Cummins Westport Inc.

Source: PR Newswire