International Trucks A26 Lightweight Engine
UP TO
515 HP.
10% MORE EFFICIENT.
Diane Hames, Vice President, Marketing
World-class athletes know the work is never finished. Improvements can always be had - no matter how small. Because when added up, incremental improvements can mean significant overall gains. And that's exactly what our engineers do each and every day at International Truck.
When the A26 engine was launched in 2017, it represented an incredible mix of power, low weight and efficiency. But it turns out, the engineers were just getting warmed up. Between 2018 and 2020, they were able to achieve a 6 percent gain in efficiency through a mix of aerodynamic and mechanical improvements as well as predictive cruise control calibrations. Then, in 2021, an additional 4% was achieved for a grand total of 10% gains since the original introduction of the already efficient engine. 10% is a large number no matter what the application, but for trucks that may travel 100,000 or more miles a year, a 10% fuel savings can make a significant impact on the bottom line.
THE POWERFUL AND LIGHTWEIGHT A26 ENGINE KEEPS GETTING BETTER.
- Eaton Endurant
- Predictive Cruise Control - Engine optimized calibrations
- Direct Drive 2.15 ratio
- Drive Wheel Aero Effects
2020
- Predictive Cruise Control - Engine optimized calibrations (Phase 2)
- Chassis Aero Enhancements
- Predictive Cruise Control - Transmission optimized calibrations
2021
- 2021 A26 engine enhancements
SWEATING THE DETAILS
COMBUSTION ENHANCEMENTS
OPTIMIZED ENGINE TEMPERATURE CONTROL
AIR MANAGEMENT SYSTEM UPDATES
REDUCED ENGINE SPEED WITHOUT COMPROMISING POWER
NEW FEATURES
Lightweight Engine Specifications
-
ENGINE
Connecting rod, top compression ring, exhaust valves, sleeve material, damper -
ELECTRICAL SYSTEM
Engine control module, injector harness, engine sensor harness, coolant heater, mass air flow sensor, exhaust back pressure sensor/ tube/bracket, exhaust temp sensor -
COOLING SYSTEM
Variable water pump, coolant sensor -
EXHAUST GAS RECIRCULATION (EGR) SYSTEM
EGR valve, EGR cooler, reed valves, resonator -
AIR SYSTEM
Intake Throttle Valve, EGR mixer duct -
FUEL SYSTEM
Fuel System New Fuel pump timing, fuel temp sensor, fuel injectors -
LUBRICATION SYSTEM
Piston cooling jet
HOP ON BOARD
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