Proven reliability and durability

Cummins’ medium-duty truck engines have been tested and proven over the course of more than 30 years. We deliver bigtime uptime with our proven track record of performance on our unparalleled medium-duty lineup.

Learn about tomorrow – today

Discover Cummins’ medium duty engine lineup that includes diesel and gasoline.

X10 Medium Duty engine

X10

B7.7 Medium Duty engine

B7.2

B6.7 Octane Medium Duty engine

B6.7 Octane

Choose what powers your engine

helm platform engines

Innovation. Technology and Services

Cummins HELM™

Cummins HELM is our industry’s first series of engine platforms – the X15, the X10 and the B – that allows customers to choose the fuel type that best suits their needs.

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Our current product lineup

b6.7 engine

B6.7
b6.7n natural gas engine

B6.7N
l9 engine

L9
l9n natural gas engine

L9N
View all Medium-duty truck engines

Parts and Service

Service to keep you moving
Choose from our network of over 9,000 service and distributor locations around the globe.
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Extend the life of your engine with Genuine Cummins Parts
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