MEMPHIS (October 23, 2012) -

Cummins Inc. (NYSE: CMI) announced its complete product lineup for the school bus market at the National Association for Pupil Transportation (NAPT) Expo in Memphis from Oct. 20 to 25. These Cummins diesel and natural gas engines are designed to meet the 2014 U.S. Environmental Protection Agency (EPA) greenhouse gas (GHG) and fuel-efficiency standards a full year early.

New regulations from the EPA and the U.S. Department of Transportation (DOT) will institute equivalent carbon dioxide (CO2) and fuel-efficiency standards for commercial vehicle engines beginning in 2014. All of Cummins on-highway products will meet these standards Jan. 1, 2013, providing customers with a single product launch one year early. Using less fuel in the engine simultaneously reduces CO2, which is the main GHG controlled under this regulation.

“Cummins continues to show customers our commitment to being better where it counts for their business. We are delivering products with better fuel economy, reliability and durability that in turn will meet the 2014 GHG and fuel-efficiency standards a year early,” stated Tom Hodek, General Manager – North American Bus Business. “This pioneering capability as a leader in diesel engine technology emphasizes our long-standing commitment to bring cleaner and more fuel efficient products to the market for our customers.”  

Cummins is building on the success of its current MidRange product platforms with the same capable base engine for 2013. For 2013, Cummins will offer the school bus market two choices in clean diesel power – the ISB6.7 and ISL9. The 2013 ISB6.7 will continue to deliver industry-leading fuel economy coupled with exceptional reliability and durability.

Driven by the proven technology of the High Pressure Common Rail (HPCR) fuel system, VGT™ Turbocharger and fully integrated electronic controls, the ISB6.7 will not only deliver exceptional fuel economy, but it will also do so as one of the cleanest near-zero-emissions engines available in the marketplace.

The 2013 ISL9 features the proven XPI fuel system to maximize fuel economy and performance while decreasing exhaust emissions to near-zero levels. The 2013 ISB6.7, with ratings of 200 hp to 300 hp (149-224 kW), and the ISL9, with ratings of 260 hp to 370 hp (194-276 kW), will together cover the entire ratings range available today. Both engines also feature the Cummins Aftertreatment System from Cummins Emission Solutions, integrating a Diesel Particulate Filter (DPF) and Selective Catalytic Reduction (SCR).

On-Board Diagnostics (OBD), proven on hundreds of thousands of engines since 2007, will be included on the diesel engine lineup for 2013 as well. OBD monitors emissions-related engine systems and components, and alerts the operator of any malfunctions. OBD is designed to further enhance the engine and operating system by providing early detection of emissions-related faults.  

The 2013 Cummins Westport ISL G natural gas engine will remain as a key element in the Cummins product portfolio for the school bus market. The spark-ignited ISL G, which shares 80 percent of common components with its diesel counterpart, the ISL9, delivers impressive low-end torque, transient response and quiet operation. It also features a simple passive Three-Way Catalyst aftertreatment system, which is maintenance-free and packaged as a part of the muffler. As the industry-leading MidRange alternative-fuel engine, the ISL G is the natural choice to deliver reliable, clean power to meet school-bus customers’ specific needs.

Cummins will continue its commitment to customer support by offering an outstanding base warranty with new 10-year extended coverage options available. In addition, Cummins customers benefit from access to the largest and most capable support network in the industry, with over 3,500 authorized service locations in the United States and Canada.

About Cummins Inc.
Cummins Inc., a global power leader, is a corporation of complementary business units that design, manufacture, distribute and service engines and related technologies, including fuel systems, controls, air handling, filtration, emission solutions and electrical power generation systems. Headquartered in Columbus, Indiana (USA), Cummins employs approximately 44,000 people worldwide and serves customers in approximately 190 countries and territories through a network of more than 600 company-owned and independent distributor locations. Cummins earned $1.85 billion on sales of $18.0 billion in 2011. Press releases can be found on the Web at or Follow Cummins on Twitter at and on YouTube at More information on Cummins Westport can be found at