Navistar Inc. Updates International A26 Engine
Navistar Inc., Lisle, Illinois, announced in October updates to the International® A26 engine, which are designed to now allow fleets to achieve 10% improved fuel economy since the engine’s initial launch. Here’s the math on that: According to the manufacturer, previous design and system updates account for a 6% fuel efficiency improvement, while the latest engine enhancements to the A26 (2021 GHG) provide an additional 4% fuel economy benefit. The previous updates contributing to the 6% fuel efficiency improvement include more optimized engine and transmission calibrations mated with the Eaton Endurant automated manual transmission, a direct drive 2.15 ratio, and aerodynamic improvements to wheel coverings on drive axle wheels and the chassis.
The latest engine enhancements to the A26 (2021 GHG) include combustion enhancements, optimized engine temperature control, air management system updates and reduced engine speed while optimizing fuel consumption.
The latest generation International A26 13-liter engine was designed to provide greater fuel efficiency without sacrificing power. Built from the proven MAN D26 engine crankcase, this latest version of the International A26 produces up to 515 horsepower and 1,850 lb.-ft. of torque.
The A26 engine is available for order in the International® LT® Series of long-haul vehicles, RH™ Series of regional haul vehicles, the HX® Series for heavy-haul and various construction applications and the HV™ Series for select vocational applications.