International Truck S13 Integrated (RH/LT replacement, 2025+)
Highway tractor (integrated powertrain) • Production 2024–present
About the International Truck S13 Integrated (RH/LT replacement, 2025+)
The International S13 Integrated is Navistar/Traton's next-generation Class 8 highway tractor with the new International S13 engine — a 13L Traton-derived inline-6 replacing the International A26. Launched 2024 as the strategic platform reset after Volkswagen Group's acquisition of Navistar via Traton. The S13 engine shares architecture with Scania and MAN trucks in Europe — leveraging Traton's global engine R&D. The S13 Integrated is positioned as the modern alternative to the LT Series (the previous-generation tractor).
Overview
The International S13 Integrated is Navistar/Traton's next-generation Class 8 highway tractor with the new International S13 engine — a 13L Traton-derived inline-6 replacing the International A26. Launched 2024 as the strategic platform reset after Volkswagen Group's acquisition of Navistar via Traton. The S13 engine shares architecture with Scania and MAN trucks in Europe — leveraging Traton's global engine R&D. The S13 Integrated is positioned as the modern alternative to the LT Series (the previous-generation tractor).
Specifications
- Manufacturer
- International Truck
- Class
- Class 8
- Vehicle type
- Highway tractor (integrated powertrain)
- Cab type
- Day cab, 56-inch sleeper, 73-inch sleeper
- Production years
- 2024–present
- Applications
- Long haul, regional haul, fleet
- Typical engines
- International S13 (13L integrated) — replaces A26
- Typical transmissions
- International T14 (Traton-engineered integrated AMT)
- GVWR range
- 33,000-80,000 lb
Design and engineering
International cab structure with all-new powertrain integration. S13 13L inline-6 diesel (390-515 hp, up to 1,850 lb-ft torque). T14 AMT (Traton-engineered 14-speed automated manual). Optimized for fuel economy through aerodynamic refinements and integrated powertrain software.
Generations and major changes
Market position and popularity
Brand-new — too early to assess market acceptance. Major fleet trials underway with Schneider, Werner, U.S. Xpress. Navistar/Traton is betting heavily on the S13 to rebuild brand reputation post-MaxxForce era. Initial deliveries 2024-2025.
Who buys this truck
Large fleets piloting the platform (Schneider, Werner), Navistar loyalists, fleets looking for fuel-economy gains.
Common problems and reliability notes
Too new for long-term data. The S13 engine is unproven in North American long-haul duty cycles, but the Scania/MAN heritage gives confidence. T14 transmission is also new.
Pros and cons
✓ Pros
- • Modern Traton-aligned powertrain
- • Integrated AMT optimized for engine
- • Fuel economy positioned as best-in-class
⚠ Cons
- • Brand-new — unproven
- • International brand recovery still ongoing
- • Limited used market (too new)