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Cummins Westport engines are 100% natural gas engines for use in on-road automotive vehicle applications, such as urban transit, shuttle and school bus, and medium and heavy duty trucks. Cummins Westport engines are not conversions, or retrofits. We do not offer products to convert a diesel engine to run on natural gas.

For information on Cummins natural gas engines for off-road, industrial, agricultural, or power generation applications, please visit

For information on natural gas conversion options, please visit NGVAmerica or the US Department of Energy Alternative Fuels Data Center.

Parts & Service

Service, parts, training, and warranty support for Cummins Westport natural gas engines are available at any authorized Cummins service facility. Contact your closest Cummins Distributor for details.

Customers can also make use of Cummins QuickServe Online (QSOL).Using an engine serial number, customers can access the most current information on parts, maintenance, service and operation, as well as download manuals and other important information. To learn more about QSOL, or to register, click here.

For engine-related issues, visit Cummins Care or call the Cummins Care line at 

If you are located outside of North America, please visit Cummins Care for global contact numbers. 

Business Office

Cummins Westport Inc.
101 – 1750 West 75th Avenue
Vancouver, British Columbia
Canada  V6P 6G2
Tel: 1-604-718-8100

You may also contact us at or via the form below.

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