At Cummins, our goal is to make sure the wheels keep turning – every hour of every day, on every type of route, whether it’s from the airport to the hotel or from the local neighborhood to the regional elementary school.

We offer three different engines that are widely used for school buses and shuttle buses. Two are clean diesels – the ISB6.7 and the ISL9, which replaces the ISC8.3. The third option is our natural gas Cummins Westport ISL G.

All of these engines help you reduce fuel expenses and greenhouse gas (GHG) emissions. The 2013 ISL9 and ISB6.7 get up to 2 percent better fuel economy versus the previous models. The ISL G takes advantage of an abundance of domestically produced natural gas to provide lower fuel costs. These engines share common baseengine components for exceptional reliability and durability.

Our totally integrated package, from the air handling to the exhaust aftertreatment, allows us to optimize performance to a degree that no other engine manufacturer can match. It’s that kind of advanced thinking that allows every one of these engines to meet the 2014 fuel-efficiency and GHG standards a full year ahead of schedule in 2013. All with improved fuel economy, reliability and virtually no change in maintenance.

So you can expect your school bus or shuttle bus to meet your demanding performance standards while lowering the cost of operation for your fleet. Plus, these engines share the largest and most capable service and support network in North America, with over 3,500 authorized locations. That’s what we mean when we say that Cummins has the power to make every bus better – where it counts…


For more information, please see the PDF file: 

ISB6.7 ISL ISL -G