Oshkosh Defense® HEMTT M978A4 Fuel Servicing Truck (Tanker)

Performance for the most demanding refueling missions.

The Oshkosh® Heavy Expanded Mobility Tactical Truck (HEMTT) A4 Fuel Servicing Truck, or tanker, is specifically designed to transport 2,500 gallons (9464 L) of gas, diesel or jet fuel to Forward-Arming and Refueling Points (FARP). Whether refueling ground vehicles or aircraft, the Long-Term Armor Strategy-ready (LTAS) HEMTT A4 fuel servicing truck provides the consistent reliability, protection and performance members of the armed forces can rely on. Its powerful drivetrain, advanced suspension and anti-lock braking system allow it to maneuver over even the most hazardous terrain.

» Unmatched Capabilities

  • 500 hp Caterpillar® C15 engine
  • Transport 2,500 gallons (9,464 L) of fuel
  • Option: 20,000 lbs. (9,072 kg) self-recovery winch

» Comprehensive Protection System

  • LTAS B-kit ready
  • Armor attachments
  • Integrated under cab protection
  • Gunner Protection Kit (GPK) mount
  • Machine gun mount


Delivering 55 more horsepower than its predecessor, the HEMTT A4 Fuel Servicing Truck is versatile, dependable and high performing. Manufactured with rugged and durable components, it provides long-term reliability mission after mission.



Major changes and additions to the HEMTT A4 cab offer greater comfort and safety for mission success. These protection features include heavy-duty cab mounts and attachments advancing a modular approach to personnel protection.


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Oshkosh Defense