746-1044 kW | 1000-1400 hp Building on the KTA38’s reputation hard earned on the U.S.

Uptime The 2020 X15 Efficiency Series incorporated key product improvements to meet the 2021 emissions standards. Cummins measures the performance of product launches through metrics like “percent zero touch” and “touches per thousand” in order to quantify product reliability and uptime. The 2020 product launch was the best performing product launch to date, and with minimal changes for the 2021 launch, we expect he trend to continue. Cummins offers the longest service intervals in the industry – keeping you on the road and out of the service bay. 

Uptime The 2021 X15 Performance Series incorporated key product improvements launched with the 2020 X15 Efficiency Series and builds off the most successful product launch in Cummins history. With the best “Percent Zero Touch” and lowest “Touches Per Thousand” metrics to date, Cummins expects the trend to continue with the 2021 X15 product lineup.  Cummins offers the longest service intervals in the industry – keeping you on the road and out of the service bay.

Easily recognized by the “V” designation on the ratings chart, Productivity Series ratings have a higher output capacity (up to 605 hp with 2050 lb-ft of peak torque) than any other engine in the 15-liter category. More important, the component set delivers superior responsiveness to throttle input – engineering-speak for plenty of muscle to get you rolling up to speed with a full load on hilly terrain.

Proven track record The Cummins B6.7™ is one of the most dependable, durable and reliable medium-duty engines available. It’s been tested and proven with more than 12 million engines produced over nearly 40 years, with billions of miles driven. These figures aren’t just milestones either. They represent years of experience learning and optimizing the product into what we produce today – the most reliable B6.7 Cummins has ever built.

L9 is at the top of its class With over 35 years of production and 5 million L-series engines produced globally with millions of miles driven, the L9 has the proven track record and higher power output you need for Class C and D buses used for longer trips and demanding routes. With ratings from 260 to 360 horsepower (194-268 kw), the L9 provides a range of options to meet every power need.