Warranty - U.S. & Canada

Cummins Westport engines feature similar factory base warranty coverage as Cummins diesel engines. A variety of extended coverage plans to meet customers' needs are also available. As plans are subject to change, please contact your Cummins or Cummins Westport representative for details on the best available option for your fleet.

Below is a summary of base warranty for 2018 engines. For other Cummins Westport engines, please contact your local Cummins or Cummins Westport representative. For warranty on international natural gas engines, contact your Cummins representative.

B6.7N

Warranty includes 2 years/unlimited miles or kilometers with full parts and labor coverage on warrantable failures*. Standard coverage for the B6.7N in school bus applications is 5 years/100,000 miles (160,935 km). Major components coverage is also available.

L9N

For transit and shuttle bus engines, a standard two year/unlimited miles or kilometers warranty with full parts and labor coverage on warrantable failures* applies. For school bus engines, standard coverage is 5 years/100,000 miles (160,934 km), whichever comes first. For truck customers, full engine coverage is provided for 2 years/250,000 miles (402,336 km), whichever comes first. Major components coverage is also available.

ISX12N

For truck applications, warranty includes parts, labor and progressive damage on virtually everything from the block casting to fuel system for 2 years/250,000 miles (402,336 kilometers). For motorcoach, a 2 year/unlimited miles or kilometers warranty is available. Major components coverage is also available.

Extended Coverage

Cummins Westport Inc. also offers a variety of extended coverage plans to meet every customer’s need. For full extended coverage plan details, contact your local Cummins distributor or Cummins Westport representative.

Better Customer Care

Cummins Westport-powered vehicles are supported by the Cummins service network, the largest and most capable in North America. Cummins-authorized technicians are fully trained on Cummins Westport natural gas engines, with ready access to Cummins parts and warranty support. For questions regarding your Cummins Westport engine or for assistance in finding a repair facility in the United States or Canada, call Cummins Care at 1-800-CUMMINS™ (1-800-286-6467).

 

*Covers defects in Cummins materials or factory workmanship