The High Mobility Multi-purpose Wheeled Vehicle (HMMWV) is the replacement vehicle for the M151 series jeeps. The HMMWV's mission is to provide a light tactical vehicle for command and control, special purpose shelter carriers, and special purpose weapons platforms throughout all areas of the modern battlefield. It is supported using the current logistics and maintenance structure established for Army wheeled vehicles. The HMMWV is equipped with a high performance diesel engine, automatic transmission and four wheel drive that is air transportable and droppable from a variety of aircraft. The HMMWV can be equipped with a self-recovery winch capable of up to 6000 pound 1:1 ratio line pull capacity and can support payloads from 2,500 - 4,400 pounds depending on the model. The HMMWV is produced in several configurations to support weapons systems; command and control systems; field ambulances; and ammunition, troop and general cargo transport.

The HMMWV is the world standard in light military trucks. It is lightweight, high performance, four wheel drive, air transportable and droppable, land mobility system. The family includes utility/cargo, shelter carrier, armament carrier, ambulance, TOW missile carrier and scout-reconnaissance configuration. Payload varies by body style ranging from 1920 lbs on the 4 litter ambulance to 5300 lbs on limited availability Expanded Capacity variant, but is generally in the 5/4T range. A basic armor package is standard on the Armament and TOW missile carrier models. A more heavily armored, or Up-Armor HMMWV, is now being produced in limited quantities, primarily for the Scout Platoon application. Special supplemental armor versions have been developed for USMC requirements; unique model numbers designate these configurations.

Primary function: The HMMWV provides a variety of wheeled vehicle platforms. These are cargo/troop carrier, armament carrier, TOW missile system carrier, shelter carrier and two ambulance variants (2- and 4-litter). The HMMWV will also be the prime mover for the AN/TRC-170 Radio Digital Terminal and the Pedestal Mounted Stinger System.

Length: 15 feet (4.57 meters)
Width: 7.08 feet (2.16 meters)
Weight: 5,200 pounds (2359 kilograms)
Height: 6.00 feet (1.83 meters) reducible to 4.5 feet (1.37 meters)
Engine: V8, 6.2 litre displacement, fuel injected diesel, liquid cooled, compression ignition
Horsepower: 150 at 3,600 RPM
Transmission: 3 speed, automatic
Transfer case: 2 speed, locking, chain driven
Electrical system: 24 volt, negative ground, 60 amps
Brakes: Hydraulic, 4-wheeled disc
Fording depth:
without preparation: 2.5 feet (76.2 centimeters)
with deep water fording kit: 5 feet (1.5 meters)
Fuel type: Diesel
Fuel capacity: 25 gallons (94.63 liters)
Range: 350 miles (563.15 kilometers) highway
Unit Replacement Cost: $50,000

Mission: The M998 is the baseline vehicle for the M998 series of 1 1/4-ton trucks, which are known as the HMMWV vehicles. The HMMWV vehicles include 11 variants. They are: M998 Cargo/Troop Carrier; M1038 Cargo/Troop Carrier, with winch; M1043 Armament Carrier; M1044 Armament Carrier, with winch; M1045 TOW Carrier; M1046 TOW Carrier, with winch; M997 Ambulance, basic armor 4-Litter; M1035 Ambulance, 2-Litter; M1037 Shelter Carrier; M1042 Shelter Carrier, with winch; M1097 Heavy HMMWV (payload of 4,400 pounds). All HMMWVS are designed for use over all types of roads, in all weather conditions and are extremely effective in the most difficult terrain. The HMMWVS high power-to-weight ratio, four wheeled drive and high ground clearance combine to give it outstanding cross-country mobility.

Marine Corps Inventory: 19,598