Commercial Value Meets Military Readiness
Medium Tactical Truck Program (MTT)
Class
8
Heavy-Duty
Power
440
Max HP
Torque
1660
LB-FT Max
The Marine Corps’ initial development requirements for the MTT fleet focused on cargo variants consisting of 10-, 15- and 20-foot cargo bed configurations with hybrid electric technology for reduced fuel consumption, extended range and reduced noise for silent watch capabilities. A 70% off-road and 30% on-road mission profile will be supported by a 60-inch fording capability to traverse through deep water typically encountered during Marine Corps missions.
In January 2024, Mack Defense was awarded a contract to participate in Phase I of the Medium Tactical Truck (MTT) Program. This pivotal phase—spanning 12 months—included submitting innovative design concepts and a comprehensive project plan. In December 2024, Mack Defense successfully passed the USMC’s Critical Design Review (CDR), positioning the MTT as the future replacement for the Medium Tactical Vehicle Replacement (MTVR) fleet.
The program will ultimately cover multiple mission variants, with the Cargo Variant as the initial focus.
In March 2024, Mack Defense was awarded the prototype phase which includes the development of two variants: a 4×4 configuration featuring a 10-foot cargo bed and a 6×6 configuration with a 20-foot cargo bed. The trucks share DNA with the Mack® Granite® but are specially designed to meet the specific requirements of the U.S. Marine Corps. The MTT prototypes incorporate significant technological advancements in driver safety and operational capability. These include advanced driver assistance features such as collision avoidance, blindspot detection and vehicle dynamic control systems incorporating enhanced traction control and anti-lock brakes. The vehicles also feature hybrid-electric technology delivering improved fuel efficiency while enabling critical tactical advantages such as silent watch capabilities using extensive onboard power storage and generation and exportable power for other military systems.
Key Requirements & Capabilities
- Cargo Variants: Configurations include 10 ft, 15 ft, and 20 ft cargo beds.
- Hybrid Electric Technologies: Reduced fuel consumption, extended range, and silent watch capability.
- Onboard & Export Power: 10 kW onboard power and scalable exportable power up to 30 kW.
- Mobility: Designed for a 70% off-road / 30% on-road mission profile with 60” water fording capability (USMC-specific).
- Safety & Stability: Advanced stability control, open systems architecture, and modular mission flexibility.
- Armor System: Modular, scalable armor designed for easy upgrades, installation, and maintenance.
- Maintenance & Reliability: Condition-based maintenance systems, corrosion prevention, and increased durability.
Next Steps: Phase II
- Award: Mack Defense awarded for Phase II of the MTT program.
- Prototype Development: Two prototypes (10 ft Cargo and 20 ft Cargo) planned and testing
- Timeline: Prototype build and testing scheduled for Q3 2025 – Q2 2027.
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