The Eaton Cummins Automated Transmission Technologies joint venture has added a new downsped overdrive model to its range of Eaton and Cummins SmartAdvantage Powertrains.

The powertrain’s 1,550/1,850 lb.-ft. torque rating is compatible with rear axle ratings down to 2:47:1, enabling engine cruise speeds as low as 1,075 RPMs – lower than some direct drive transmissions, according to Eaton Cummins. The model is designed to optimize performance and fuel economy in linehaul applications.

Available through North American original equipment manufacturers in October 2017, the FAOM-18910S-EC3 offers more options for gradeability, improved downspeeding, and the potential for higher resale value, according to the company.

“This new SmartAdvantage model is capable of the lowest cruise RPMs in the trucking industry for best in class downspeeding,” said Alex Stucky, product strategy manager, heavy-duty linehaul transmissions, Eaton Cummins Automated Transmission Technologies. “It’s our most downsped SmartAdvantage Powertrain, and it has been validated in field tests across a wide range of duty cycles. When paired with the 1,850 lb.-ft. rating, fleets can maximize fuel economy without sacrificing performance.”

The SmartAdvantage Powertrain combines the X15 engine and Fuller Advantage Series automated 10-speed transmissions. It offers customers the choice of small-step overdrive or direct-drive gearing and improved fuel economy.  Fleets running 2010 model year trucks can expect to see 20%  better fuel economy with the current X15 SmartAdvantage Powertrain versus the 2010 ISX15 powertrain, according to the Eaton Cummins joint venture.

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