Cummins Westport is a world leader in the development of environmental technologies that enable internal combustion engines to run on clean-burning gaseous fuels such as natural gas, hydrogen, and hydrogen-enriched compressed natural gas.  Since 1995, Westport has engaged in the research, development, and marketing of high-performance engines and fuel systems which use gaseous fuels such as compressed natural gas (CNG), liquefied natural gas (LNG), hydrogen, and hydrogen-enriched compressed natural gas (HCNG).

Westport’s High Pressure Direct Injection (HPDI) technology, available exclusively on the Cummins 2007 ISX, reduces nitrogen oxides (NOx), particulate matter (PM) and greenhouse gas emissions (GHG) while preserving the power, torque, and fuel efficiency of the original diesel engine.

Cummins Westport also offers four Lean Burn Spark Ignited (LBSI) natural gas vehicle engines from 150 to 320 horsepower and a LBSI propane vehicle engine with 195 horsepower. With over 12,000 engines in service (8,000 in North America), Cummins Westport engines are designed to meet the most stringent emissions regulations and provide efficient and reliable service.

In 2007 Cummins Westport introduced the ISL G, a natural gas engine that meets EPA emission regulations for 2010, with over 80% lower NOx than previous products, 34% more torque at idle, and improved fuel economy.  Cummins Westport Low Emission Engines

Natural Gas/Propane
Cummins Cal Pacific’s leadership in the heavy-duty alternative fuel engine business over the last 10 years, has resulted in more than 2500 Cummins Westport natural gas and propane engine sales in Southern California.  We are proud of this accomplishment, and continue to seek new opportunities for applications of Cummins Westport technology.  Some of our greatest successes have been in the Transit industry. 

Southern California is home to the largest natural gas transit bus fleet in North America.  Los Angeles County Metropolitan Transit Authority (LACMTA) has more than 2250 of 2500 total buses operating on natural gas. 

In addition to providing natural gas engines to LACMTA, Cummins Cal Pacific continues to supply parts and service maintain for their fleet of Cummins powered buses.  Cummins Cal Pacific is also the provider and installer of more than 200 Cummins Westport 2007 ISL G natural gas engines to the Orange County Transit Authority (OCTA). 

Biodiesel
In March 2007, Cummins announced the approval of biodiesel B20 blends for use in its 2002 and later emissions-compliant ISX, ISM, ISL, ISC and ISB engines.  This decision was based on the following criteria: the American Society of Testing Materials specification ASTM D6751 now includes an important stability specification for B100 biodiesel, the availability of quality fuels from BQ-9000 Certified Marketers and Accredited Producers is growing rapidly; and third, Cummins has completed the necessary testing and evaluations to ensure that customers can reliably operate their equipment with confidence using B20 fuel.  Complete Biodiesel announcement

Cummins Cal Pacific can assist in an evaluation of the pros and cons of introducing biodiesel into your equipment.  Also help with understanding the special handling and storage requirements of biodiesel, warranty implications, and the impact it may have on an engine’s fuel system.

Biodiesel FAQ

National Biodiesel Board