2020 International LT625 – Cummins X15 / 10-Speed Auto Well-maintained 2020 International LT625 powered by the dependable Cummins X15 engine paired with a smooth-shifting 10-speed automatic transmission. This fleet-ready highway tractor has 703,000 miles and is built for reliability, fuel efficiency, and driver comfort on long hauls. The LT625 offers an aerodynamic design, spacious cab, and modern driver-focused interior, making it a strong choice for owner-operators or fleet expansion. The Cummins X15 delivers proven performance and durability, while the automatic transmission provides easier operation in both city and highway driving.