International Trucks A26 Lightweight Engine
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
- Predictive Cruise Control - Engine optimized calibrations (Phase 2)
- Chassis Aero Enhancements
- Predictive Cruise Control - Transmission optimized calibrations
- 2021 A26 engine enhancements
SWEATING THE DETAILS
The updated International A26 provides the horsepower you'd expect from a 15L engine, while working harder at lower engine speeds."
- Chet Ciesielski, Vice President, On-Highway Truck Business
OPTIMIZED ENGINE TEMPERATURE CONTROL
AIR MANAGEMENT SYSTEM UPDATES
REDUCED ENGINE SPEED WITHOUT COMPROMISING POWER
Lightweight Engine Specifications
ENGINEConnecting rod, top compression ring, exhaust valves, sleeve material, damper
ELECTRICAL SYSTEMEngine control module, injector harness, engine sensor harness, coolant heater, mass air flow sensor, exhaust back pressure sensor/ tube/bracket, exhaust temp sensor
COOLING SYSTEMVariable water pump, coolant sensor
EXHAUST GAS RECIRCULATION (EGR) SYSTEMEGR valve, EGR cooler, reed valves, resonator
AIR SYSTEMIntake Throttle Valve, EGR mixer duct
FUEL SYSTEMFuel System New Fuel pump timing, fuel temp sensor, fuel injectors
Piston cooling jet
HOP ON BOARD
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