Issue link: https://read.dmtmag.com/i/730281
During a press conference at the Transportation Research Center in East Liberty, Ohio, Cummins pulled the curtain back on its next-genera- tion engine family, the 15-liter X15 (available in two configurations) and the 12-liter X12 heavy-duty diesel engines. Both engines build off the legacy of Cummins' ISX platform and offer a variety of design and perfor- mance improvements depending on the model. With the announcement, Cummins also said the new engines are ready to exceed the U.S. Environmental Protec- tion Agency's 2017 greenhouse gas and fuel-efficiency standards. Even without the looming regulations, the engine launch is perfect timing for Cummins, a company whose domi- nant grip on market share has slipped in recent years as proprietary integrat- ed engine-transmission packages from truck OEMs have taken a bite out of the engine maker's business. Cum- mins answered with its own optimized platform, partnering with Eaton in 2013 to launch the SmartAdvantage powertrain package. With its new X series platform, Cum- mins introduces its future heavy duty engine lineup aimed to retain fleets and owner-operators who prefer red engines under their hoods and woo back those who went the OEM route in their last purchase cycle. Lean or mean While the ISX platform has only one 15-liter starting option, the X series offers two: The fuel-sipping X15 Ef- ficiency Series geared toward line-haul and regional markets, and the X15 Performance Series, built specifically for heavy-haul, vocational and other by Jeff Crissey 10 www.bigrigowner.com O C T O B E R 2 0 1 6 High Performance Diesels > Cummins unveils two new 15-liter engines for 2017, rebrands heavy-duty lineup The Cummins X15 Efficiency Series (left) and the X15 Performance Series (right) highlight Cummins' 2017 engine lineup.