Cummins ISX15

With performance ratings for Heavy Haul, Regional Haul and more, Cummins ISX15 is one of the most popular heavy duty engines in North America. Highly adaptable to a wide variety of needs the ISX15 is available with your choice of horsepower ratings from 400hp to 500 hp and up to 1850 ft. lb. of torque. The XPI fuel system delivers maximum performance, regardless of engine RPMs and multiple injection events improve fuel efficiency and enable a smoother and quieter ride. With a standard engine brake and impressive power, the ISX15 is a proven and compliant platform ready to get your job done.


Power & Performance

Excellent Power

The Cummins ISX15 combines the brute power needed to haul loads up steep inclines with fuel economy that your bottom line will appreciate. With a broad range of horsepower ratings up to 600HP and 2050 lb.-ft of torque the ISX15 has the power to get any job done right. The ISX15’s variable geometry turbocharger enhances response and control with electric actuation for infinite adjustment, providing exact boost at any rpm. Its sliding-nozzle design increases reliability and durability.

proven solution

With a demonstrated B50 life of over One Million Miles, the ISX15 is a proven and durable platform. With over 200,000 vehicles in service with Cummins SCR after treatment, you know the ISX15 is being combined with a proven aftertreatment system for a combination of power and reliability.

fuel economy

When you need extreme horsepower without sacrificing on fuel economy, the ISX15 is the engine for your job. The Cummins ISX15 engine delivers impressive fuel economy with improvements to the water pump, fuel pump, piston oil rings and piston cooling nozzle to reduce parasitic losses. The XPI Fuel System delivers a precise quantity of fuel at ultra-high pressures. This, together with more robust electronic engine controls, enables multiple injection events per cycle. The XPI fuel system also eliminates the need for a second camshaft providing weight savings and simplifying operation.

support network

The Navistar and Cummins partnership offers unrivaled service and support. With Navistar’s industry leading number of service locations combined with Cummins’ widespread service and support network in North America, it is easy to find authorized service technicians that are fully trained and have the necessary equipment and Genuine Cummins Parts to promptly handle any type of service issue. Representatives are standing by every hour of every day, and they will check with local authorized Cummins distributors and dealers to determine the nearest facility with an available technician and the right diagnostic and repair tools to handle your equipment issue.


smart Torque Curves

Torque Curves

The Cummins ISX15 engine was designed with superior driving performance and industry-leading fuel economy in mind. Each component has been engineered to optimize performance, reliability and durability. Ratings range from 400-500 hp with a maximum 1850 lb-ft of peak torque.

Specs

Torque Curves

Torque Curves 2

The Cummins ISX15 engine was designed with superior driving performance and industry-leading fuel economy in mind. Each component has been engineered to optimize performance, reliability and durability. Ratings range from 400-500 hp with a maximum 1850 lb-ft of peak torque.

Specs

Torque Curves 2

Torque Curves 3

The Cummins ISX15 engine was designed with superior driving performance and industry-leading fuel economy in mind. Each component has been engineered to optimize performance, reliability and durability. Ratings range from 400-500 hp with a maximum 1850 lb-ft of peak torque.

Specs

Torque Curves 3

Torque Curves 4

The Cummins ISX15 engine was designed with superior driving performance and industry-leading fuel economy in mind. Each component has been engineered to optimize performance, reliability and durability. Ratings range from 400-500 hp with a maximum 1850 lb-ft of peak torque.

Specs

Torque Curves 4

Torque Curves 5

The Cummins ISX15 engine was designed with superior driving performance and industry-leading fuel economy in mind. Each component has been engineered to optimize performance, reliability and durability. Ratings range from 400-500 hp with a maximum 1850 lb-ft of peak torque.

Specs

Torque Curves 5

Torque Curves 6

The Cummins ISX15 engine was designed with superior driving performance and industry-leading fuel economy in mind. Each component has been engineered to optimize performance, reliability and durability. Ratings range from 400-500 hp with a maximum 1850 lb-ft of peak torque.

Specs

Torque Curves 6

Torque Curves 7

The Cummins ISX15 engine was designed with superior driving performance and industry-leading fuel economy in mind. Each component has been engineered to optimize performance, reliability and durability. Ratings range from 400-500 hp with a maximum 1850 lb-ft of peak torque.

Specs

Torque Curves 7

Torque Curves 8

The Cummins ISX15 engine was designed with superior driving performance and industry-leading fuel economy in mind. Each component has been engineered to optimize performance, reliability and durability. Ratings range from 400-500 hp with a maximum 1850 lb-ft of peak torque.

Specs

Torque Curves 8

Torque Curves 9

The Cummins ISX15 engine was designed with superior driving performance and industry-leading fuel economy in mind. Each component has been engineered to optimize performance, reliability and durability. Ratings range from 400-500 hp with a maximum 1850 lb-ft of peak torque.

Specs

Torque Curves 9

Torque Curves 10

The Cummins ISX15 engine was designed with superior driving performance and industry-leading fuel economy in mind. Each component has been engineered to optimize performance, reliability and durability. Ratings range from 400-500 hp with a maximum 1850 lb-ft of peak torque.

Specs

Torque Curves 10

Torque Curves 11

The Cummins ISX15 engine was designed with superior driving performance and industry-leading fuel economy in mind. Each component has been engineered to optimize performance, reliability and durability. Ratings range from 400-500 hp with a maximum 1850 lb-ft of peak torque.

Specs

Torque Curves 11




Specifications

Specs





Truck Offerings

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