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Cummins Begins Tier 4 Final Production

Posted on January 28, 2014

Cummins has announced the start of production of six-cylinder diesel engines certified to meet the U.S. Environmental Protection Agency (EPA) Tier 4 Final regulations, equivalent standards in Canada and Stage 4 in Europe. Engine production across a broad 190 hp to 675 hp range will increase during the course of the year as off-highway equipment manufacturers release machines ready to meet the near-zero emissions standards that took effect Jan.1, Cummins said.

Production of the QSB6.7 and QSL9 engines takes place at the Rocky Mount, N.C., plant and at the Darlington, U.K., plant, as well as at Oyama, Japan. The QSX15 engine is built at the Jamestown, N.Y., facility. The early production version of the all-new QSG12 engine is available for OEM installation work, the company said.

Field test work is underway for Cummins four-cylinder engine range, with production of the QSF3.8 and QSB4.5 on schedule for January 2015, aligning with the emissions effect date for engines rated 75 hp to 173 hp. During 2014, production volumes of the compact QSF2.8 will ramp up to meet the need for applications below 75 hp, the company said.

"By making an early start with Tier 4 Final development, we were able to undertake our largest-ever field test and OEM installation program, extending to more than 70 machines operating under the most demanding duty cycles and challenging geographies, including high altitude, high humidity, extreme heat and cold,” said Hugh Foden, executive director - Cummins Off-Highway Business. "As a result, our field testing has validated that the Tier 4 Final engines achieve the same impressive levels of uptime availability and reliability as experienced by users of our proven Tier 4 Interim and Tier 3 engines."

The full 49 hp to 675 hp engine lineup for Tier 4 Final/Stage 4 emissions will be displayed at the Cummins booth at the upcoming ConExpo-Con/Agg 2014. In addition to engines, Cummins will also display some of the first Tier 4 Final-ready power packs in the industry, together with a power rental trailer.