Cummins launching new in-line 6

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Cummins Inc. announced Monday plans to roll out a new in-line six cylinder engine, available in 10.5- and 11.8-liter displacements.

Dubbed The G Series, Cummins says the new line of diesel engines meets global market requirements and emissions standards.

“The G Series global design approach is a vivid demonstration of how Cummins is transforming from a multinational to a truly global company,” said Steve Chapman, Cummins Vice President and Group Vice President – China and Russia. “This engine platform has been designed for diverse and global markets by utilizing the expertise and local knowledge of our engineers from around the world.”

Cummins says through the design of the G Series, the company has been to achieve significant weight savings – increasing power-to-weight ratios – with the use of composite material for the oil pan and valve cover providing further weight savings. With this innovative approach, the G Series achieves a low engine weight of just 1,900 pounds (862 kg) while retaining all the structural strength and durability expected of a Cummins Heavy-Duty engine, Cummins says. 

A mainstay from Cummins’ X Series, the G Series incorporates Cummins Xtra-High Pressure Injection (XPI) fuel system, with multiple injection events driven by high-precision Cummins electronic controls.

The G Series offers fuel efficiency through parasitic reducing technology without variable-flow pumps that add unnecessary cost and reduce reliability. Its Single Cam In Head (SCIH) design with roller valve train and high-efficiency intake ports continues the design theme of minimum complexity and maximum efficiency. The resulting low-weight design allows more payload to be delivered while requiring less energy to manufacture than competitive designs.

At launch in 2014, Cummins says the engines will meet Euro III, Euro IV and China NS4 emissions requirements. Engines for Euro V, Euro VI and U.S. Environmental Protection Agency (EPA) are also in development.

Production will start during the first half of 2014.