HOUSTON (May 4, 2015) – Cummins Inc. (NYSE: CMI) announced today that the first U.S. Environmental Protection Agency (EPA) Tier 4 Final complete fracturing spread has begun operation at a Pennsylvania Airport, powered by Cummins QSK50 engines. The Halliburton spread commenced work on April 1, 2015.

Tier 4 Final marks the first significant emissions regulation since Tier 2 in 2006, representing a reduction in particulate matter (PM) by 80 percent and oxides of nitrogen (NOx) reduction of 45 percent. The industry-first commercial fleet of Tier 4 Final hydraulic fracturing rigs includes 16 QSK50 engines, operating at 2250 hp (1678 kW) at 1900 rpm. The 16-cylinder, 50-liter engine utilizes a fully integrated Cummins Selective Catalytic Reduction (SCR) aftertreatment system.

“SCR exhaust aftertreatment may be new to the well-servicing industry, but it is not new to Cummins. Our experience with SCR is unrivaled in the industry, and we have successfully applied this emissions reduction technology to over 1 million Cummins engines in North America since 2010,” said Ed Pence, Vice President – High-Horsepower Engine Business. “The Cummins Tier 4 Final solution not only offers customers such as Halliburton the same uptime and reliability of the industry-standard Tier 2 QSK50, but it also offers customers the benefit of an up to 4 percent reduction in diesel fuel.”

Tier 4 Final presents an opportunity for diesel engine manufacturers to implement new engine technologies and differentiate themselves technically. Cummins evaluated all emissions reduction solutions through thorough test-cell analysis and in-lab simulations testing, as well as real-world experience. Cummins selected a proven solution in SCR as the right technology fit for oil and gas applications, removing the complexity and reliability concerns of using heavy Exhaust Gas Recirculation (EGR) on large vee high-output engines.

Durability improvements on the engine, and the lower fuel burn, contribute to an extended life-to-overhaul for the Tier 4 Final QSK50, surpassing that of the best-in-class Tier 2 engine.

Operators can expect to reach nearly 15,000 hours of operation before rebuild, making a valuable contribution to reducing total life-cycle costs. Oil and filter services are extended to 500-hour intervals for Tier 4 Final, enabling the QSK50 to increase uptime availability levels for fracturing equipment. The combination of engine and filtration improvements results in up to four percent reduction in fuel consumption, while a highly efficient SCR aftertreatment system limits Diesel Exhaust Fluid (DEF) consumption to just 4 percent of diesel fuel used. The net result is a lower total cost of ownership over Tier 2 products.

“The integration of Cummins new Tier 4 Final compliant engine into Halliburton’s best in class Q-10 fracturing pump is an achievement that required immense design and testing by both companies over a multi-year period,” said Richard Gonzalez, Vice President of Halliburton’s Production Enhancement business line. “Halliburton is proud that our partnership has delivered cutting edge technology that significantly reduces emissions while meeting our customer’s needs for reliability and efficiency. Halliburton and Cummins share the same values of being environmentally contentious and promoting sustainability.”

The Tier 4 Final QSK50 received EPA certification a full six months ahead of the Jan. 1, 2015, implementation date, an industry first. Cummins began full production of the QSK50 in the second half of 2014.

About Cummins Inc.
Cummins Inc., a global power leader, is a corporation of complementary business units that design, manufacture, distribute and service diesel and natural gas engines and related technologies, including fuel systems, controls, air handling, filtration, emission solutions and electrical power generation systems. Headquartered in Columbus, Indiana, (USA) Cummins currently employs approximately 54,600 people worldwide and serves customers in approximately 190 countries and territories through a network of approximately 600 company-owned and independent distributor locations and approximately 7,200 dealer locations. Cummins earned $1.65 billion on sales of $19.2 billion in 2014. Press releases can be found on the Web at cummins.comor cumminsengines.com. Follow Cummins on Twitter at twitter.com/cumminsenginesand on YouTube at youtube.com/cumminsengines.