Navistar this week unveiled a new 12.4-liter engine, the International A26, which will replace the company’s N13 13-liter engine offering. The announcement came at the American Trucking Associations’ Technology and Maintenance Council annual meeting in Nashville on Monday.
“This engine is as simple as a modern diesel engine can be,” says Joao Silva, A26’s chief engineer.
The engine will be available in Navistar’s on-highway long-haul LT tractor series.
Lee Chan, Navistar’s chief engineer for controls and software, says the team took a “clean slate approach,” on the inline six cylinder engine, adding, “the collaborative one-team approach, I think, was critical for this product.”
At 2,299 pounds, the A26 is the lightest engine in its class and is 55 pounds lighter than the N13 engine it will replace in International’s order book at the end of the year. Built from the MAN D26 engine crankcase, the engine outputs up to 475 HP and 1750 lb.-ft. of torque.
The company also boasts a 5 percent boost to fuel economy when compared to the N13. International, testing an LT Series truck spec’d with the A26, became the first OEM to exceed 8 mpg on a hilly test route in Kentucky.
More on Navistar’s new engine can be seen on Overdrive sister site CCJ‘s coverage of TMC.
