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35 - 2021 International LT 625 Sleepers



A26 Engine w/450HP



"Engine Evolution: See What’s New Below"



12 Eaton Endurant Auto Transmission



Collision Mitigation System



Tandem Axle



Wheelbase: 280



Gear Ratio: 279



Mileage Range: 369k - 474k



DOT or Better



EXW: South Central USA



Group Pricing $23,500 each



The International A26 Engine, launched in 2017, represents Navistars return to in-house diesel engine production after several years of sourcing engines from other manufacturers. Heres a look at its history and development:



Genesis and Design:



Successor to Maxxforce: The A26 was designed as a successor to the Maxxforce 13, aiming to address the reliability and performance issues associated with its predecessor.

MAN D26 Foundation: The A26 is based on the proven MAN D26 engine crankcase. This provided a solid foundation of proven technology upon which Navistar built the A26 to meet the demands of the North American market.

Project Alpha: Navistar developed the A26 through an initiative called "Project Alpha," which emphasized a new approach to engine design, prioritizing simplicity, proven components, and customer-driven uptime.

Extensive Testing: The A26 underwent extensive testing, including millions of real-world miles in extreme conditions, to ensure reliability and durability.

Key Features and Improvements:



Weight Reduction: The A26 is significantly lighter than traditional big-bore engines, contributing to improved payload capacity and fuel efficiency.

Fuel Efficiency: Navistar claims the A26 offers improved fuel economy compared to its predecessor, achieved through advanced fuel systems and down-speeding calibrations.

Uptime Focus: The engine was designed for enhanced uptime, with features like increased oil change service intervals and a focus on ease of maintenance.

B10 Design Life: The A26 is designed with a B10 design life standard for an unprecedented 1.2 million miles.

Evolution and Enhancements:



Continuous Improvements: Navistar has continuously improved the A26 since its launch, focusing on further enhancing fuel efficiency and performance.

Increased Power and Efficiency: Enhancements have included an increased compression ratio, optimized exhaust gas recirculation (EGR), and a variable geometry turbocharger to improve both power output and fuel economy.

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