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M998 HMMWV Cargo Troop Carrier

1-1/4 Ton Utility Truck (High-Mobility Military Wheeled Vehicle)

NATO Stock Number (NSN): 2320-01-107-7155

The M998 variant of the HMMWV M998 Series of 1¼ ton trucks (high-mobility wheeled military vehicles) is considered the "base model". It is used to transport equipment, materials, crews and up to eight passengers. The M998 HMMWV can be easily re-purposed in the field for different roles. The M998 is an open aluminum body, canvas top, general-purpose tactical truck designed for use over all types of roads and in all weather conditions. Its high power to weight ratio, four-wheel drive and high ground clearance combine to give it cross-country mobility. The M998 series contains metric components and requires metric common and vehicle unique tools. It is equipped with a towing pintle for towing and tie-down/lifting eyes for air, rail, highway or ocean shipment. The M998 has facility for four doors which can be removed as required in the field. The optional doors are canvas over a metal frame. As a Cargo Carrier, the M998 looks like a two door pickup with a soft top roof over the two passenger cab. The rear can be open or covered with a low or high profile soft cover. A rear cargo curtain may also be fitted. In the troop version, bench seats over the rear fenders allow seating for eight troops who can be covered by the soft top. Alternatively, two conventional rear seats can be installed (four seats total) with a small pickup bed in the rear. A weapons mount can be installed and can use the same weapons as the M1025 or M1026. The passenger and cargo compartments can be covered. The M998 is un-armored.

WSDC
SFM - TRUCK, UTILITY, CARGO TROOP CARRIER, 1¼-TON W/E (M998)
TAMCN
D11587K
ID
08770A
M998 HMMWV Cargo Troop Carrier
M998 HMMWV at National Guard Training Grounds

M998 HMMWV Technical Specifications

Crew and Dimensions

Crew
  • Driver
  • Co-Driver
Dimensions
  • Length: 180 in (4.57 m)
  • Width: 85 in (2.16 m)
  • Height: 72 in (1.83 m)
  • Reducible Height: 54 in (1.37 m)
  • Weight: 5,200 lb (2,359 kg)

M998 HMMWV Technical Specifications

Mobility

  • Engine: V8 6.2L Diesel
  • Powertrain Cooling: Liquid Cooled
  • 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 (w/o preparation): 2.5 feet (0.762 meters)
  • Fording Depth (w/ deep water fording kit): 5 feet (1.5 meters)
  • Fuel Type: Diesel
  • Fuel Capacity: 25 gallons (94.63 liters)
  • Maximum Range: Over 350 miles (563 km)

M998 HMMWV Spare Parts

Weapon Systems Designator Code (WSDC): SFM

TRUCK, UTILITY, CARGO TROOP CARRIER, 1 1/4-TON W/E (M998)

Top 10 Supply Groups (FSG)

Top 10 Supply Classes (FSC)

M998 Parts

M998 Series HMMWV Models

HMMWV M998

M998 - Cargo/Troop Carrier
High Mobility Military Wheeled Vehicle (HMMWV)
NSN 2320-01-107-7155

This "base model" of the HMMWV can be easily re-purposed in the field for different roles. When used as a Cargo Carrier, the M998 looks like a two door pickup but has a soft top roof over the two passenger cab. The rear can be open or covered with a low or high profile soft cover. In the troop version, bench seats over the rear fenders allow seating for eight troops who can be covered. Alternatively, four doors can be installed with two conventional seats in the rear (four seats total) and a small pickup bed in the rear. A weapons mount can be installed and can use the same weapons as the M1025 or M1026. The passenger and cargo compartments can be covered. The doors (if installed) are just canvas over a metal frame. No armoring. 2,500 lbs payload, GVW of 7,700 lbs.

Modernized M998 Models:

HMMWV M1038

M1038 - Cargo/Troop Carrier with Winch
High Mobility Military Wheeled Vehicle (HMMWV)
NSN 2320-01-107-7156

This "base model" of the HMMWV can be easily re-purposed in the field for different roles. When used as a Cargo Carrier, the M998 looks like a two door pickup but has a soft top roof over the two passenger cab. The rear can be open or covered with a low or high profile soft cover. In the troop version, bench seats over the rear fenders allow seating for eight troops who can be covered. Alternatively, four doors can be installed with two conventional seats in the rear (four seats total) and a small pickup bed in the rear. A weapons mount can be installed and can use the same weapons as the M1025 or M1026. The passenger and cargo compartments can be covered. The doors (if installed) are just canvas over a metal frame. No armoring. 2,500 lbs payload, GVW of 7,700 lbs. Equipped with a self-recovery winch capable of up to 6000 pound 1:1 ratio line pull capacity.

Modernized M1038 Models:

HMMWV M966

M966 - TOW Carrier, Armored
High Mobility Military Wheeled Vehicle (HMMWV)
NSN 2320-01-107-7153

HMMWV with four hard doors and a metal roof. The rear can be covered by a composite slant or square back to store 6 extra missiles. The doors are made of a fiberglass reinforced with a fibrous composite fitted with operable polycarbonate windows. The hood vents have baffles to prevent spall from damaging the engine. The windshield is bullet resistant. The tires use the runflat system. Contrary to popular belief, TOW carriers are only spall resistant and cannot withstand direct small arms fire. The roof has a hatch with a rotating circular weapons mounting ring and a TOW mount providing a 360 degree field of fire. TOW stands for Tube launched, Optically sighted, Wire guided. The operator uses the optical sight for targeting. The missile is launched from a tube, spooling out wires as it flies. The wires allow the operator to steer the missile in flight. Hence, as long as the operator tracks a target, the missile will follow. The TOW missile's shaped charge warhead is able to defeat all armor. The TOW gives infantry higher lethality against armor than the personal LAW with great mobility. The TOW launcher can be dismounted from the vehicle. M966s can also be deployed as AT teams. GVW of 8,200 lbs.

Modernized M966 Models:

HMMWV M1036

M1036 - TOW Carrier with Winch, Armored
High Mobility Military Wheeled Vehicle (HMMWV)
NSN 2320-01-107-7154

HMMWV with four hard doors and a metal roof. The rear can be covered by a composite slant or square back to store 6 extra missiles. The doors are made of a fiberglass reinforced with a fibrous composite fitted with operable polycarbonate windows. The hood vents have baffles to prevent spall from damaging the engine. The windshield is bullet resistant. The tires use the runflat system. Contrary to popular belief, TOW carriers are only spall resistant and cannot withstand direct small arms fire. The roof has a hatch with a rotating circular weapons mounting ring and a TOW mount providing a 360 degree field of fire. TOW stands for Tube launched, Optically sighted, Wire guided. The operator uses the optical sight for targeting. The missile is launched from a tube, spooling out wires as it flies. The wires allow the operator to steer the missile in flight. Hence, as long as the operator tracks a target, the missile will follow. The TOW missile's shaped charge warhead is able to defeat all armor. The TOW gives infantry higher lethality against armor than the personal LAW with great mobility. The TOW launcher can be dismounted from the vehicle. M1036s can also be deployed as AT teams. GVW of 8,200 lbs. Equipped with a self-recovery winch capable of up to 6000 pound 1:1 ratio line pull capacity.

HMMWV M1045

M1045 - TOW Carrier with Supplemental Armor
High Mobility Military Wheeled Vehicle (HMMWV)
NSN 2320-01-146-7191

A M966 with additional armoring (44 Grain). Steel plates are placed over some panels to improve fragmentation (spall) resistance. However, direct fire bullet-resistance is not significantly improved. The Marine Corps is the only known user of this variant. GVW of 8,400 lbs. The M1045A2 was equipped with a self-recovery winch capable of up to 6000 pound 1:1 ratio line pull capacity.

Modernized M1045 Models:

HMMWV M1046

M1046 - TOW Carrier with Winch and Supplemental Armor
High Mobility Military Wheeled Vehicle (HMMWV)
NSN 2320-01-146-7188

A M1036 with additional armoring. Steel plates are placed over some panels to improve fragmentation (spall) resistance. However, direct fire bullet-resistance is not significantly improved. The Marine Corps is the only known user of this variant. GVW of 8,400 lbs. Equipped with a self-recovery winch capable of up to 6000 pound 1:1 ratio line pull capacity. The need for a M1046A2 was negated by the fact that the M1045A2 was fitted with a winch.

Modernized M1046 Models:

HMMWV M1025

M1025 - Armament Carrier, Armored
High Mobility Military Wheeled Vehicle (HMMWV)
NSN 2320-01-128-9551

Almost identical to the M966 TOW Carrier, but with a pintle mount on the weapons ring. The weapons ring can accommodate the 40mm MK19 Mod 3 grenade launcher, M2HB 50 caliber machine gun, M60 7.62mm machine gun, or the M240 7.62mm machine gun. The Armament Carriers have the same basic armor protection (17 Grain) as the M966 TOW Carrier. GVW of 8,200 lbs. The M1025A2 was equipped with a self-recovery winch capable of up to 6000 pound 1:1 ratio line pull capacity.

Modernized M1025 Models:

HMMWV M1026

M1026 - Armament Carrier with Winch, Armored
High Mobility Military Wheeled Vehicle (HMMWV)
NSN 2320-01-128-9552

Almost identical to the M1036 TOW Carrier, but with a pintle mount on the weapons ring. The weapons ring can accommodate the 40mm MK19 Mod 3 grenade launcher, M2HB 50 caliber machine gun, M60 7.62mm machine gun, or the M240 7.62mm machine gun. The Armament Carriers have the same protection as the basic armored M1036 TOW Carrier. GVW of 8,200 lbs. Equipped with a self-recovery winch capable of up to 6000 pound 1:1 ratio line pull capacity. The need for a M1026A2 was negated by the fact that the M1025A2 was fitted with a winch.

Modernized M1026 Models:

HMMWV M1043

M1043 - Armament Carrier with Supplemental Armor
High Mobility Military Wheeled Vehicle (HMMWV)
NSN 2320-01-146-7190

A M1025 with additional armoring (44 Grain) like the M1045. Steel plates are placed over some panels to improve fragmentation (spall) resistance. However, direct fire bullet-resistance is not significantly improved. The Marine Corps is the only known user of this variant. GVW of 8,400 lbs.

Modernized M1043 Models:

HMMWV M1044

M1044 - Armament Carrier with Winch and Supplemental Armor
High Mobility Military Wheeled Vehicle (HMMWV)
NSN 2320-01-146-7189

A M1026 with additional armoring like the M1046. Steel plates are placed over some panels to improve fragmentation (spall) resistance. However, direct fire bullet-resistance is not significantly improved. The Marine Corps is the only known user of this variant. GVW of 8,400 lbs. Equipped with a self-recovery winch capable of up to 6000 pound 1:1 ratio line pull capacity.

Modernized M1044 Models:

HMMWV M1037

M1037 - S250/S-788 Shelter Carrier
High Mobility Military Wheeled Vehicle (HMMWV)
NSN 2320-01-146-7193

The M1037 is based on the M998 Cargo Carrier with a modified electrical system and cargo bed. Shelters are large enclosures mounted in the bed and tall enough to almost stand in. Multiple shelter designs provide multi-mission capabilities such as Command Post or Radio Units. 3,600 lbs payload with a GVW of 8,660 lbs.

M1042

M1042 - S250/S-788 Shelter Carrier with Winch
High Mobility Military Wheeled Vehicle (HMMWV)
NSN 2320-01-146-7187

The M1042 is based on the M1038 Cargo Carrier with a modified electrical system and cargo bed. Shelters are large enclosures mounted in the bed and tall enough to almost stand in. Multiple shelter designs provide multi-mission capabilities such as Command Post or Radio Units. 3,600 lbs payload with a GVW of 8,660 lbs. Equipped with a self-recovery winch capable of up to 6000 pound 1:1 ratio line pull capacity.

HMMWV M996

M996 - Ambulance, Two Litter, Armored
High Mobility Military Wheeled Vehicle (HMMWV)
NSN 2310-01-111-2275

The M996 Field Ambulance has two hard doors and a rear wagon-like body with a slightly elevated top. It can carry two litters and three ambulatory patients as well as the driver. It has the basic armor like the M1025 and M1026 Armament Carriers. GVW of 8,660 lbs.

Modernized M996 Models:

HMMWV M997

M997 - Ambulance, Four Litter, Armored
High Mobility Military Wheeled Vehicle (HMMWV)
NSN 2310-01-111-2274

The M997 Maxi-Ambulance has two hard doors with a longer and taller rear section than the M996. It can provide comprehensive care to four litter patients or can carry up to eight ambulatory patients and the crew of two. It also has its own Air-Conditioning, Heating, and Power Generation. The M997 has the basic armor (17 Grain) like the M1025 and M1026 Armament Carriers. GVW of 9,100 lbs.

Modernized M997 Models:

HMMWV M1035

M1035 - Ambulance, Two Litter, Soft Top
High Mobility Military Wheeled Vehicle (HMMWV)
NSN 2310-01-146-7194

The M1035 can carry two litters and three ambulatory patients as well as the driver. It is a soft top with a low soft top enclosure. It has no armoring. GVW of 7,700 lbs.

Modernized M1035 Models:

HMMWV M1109

M1109 - Up-Armored HMMWV (UAH) Armament Carrier
High Mobility Military Wheeled Vehicle (HMMWV)
NSN 2320-01-389-7558

The M1109 based on the M998A1 chassis, developed by O'Gara-Hess and Eisenhardt company, was the first up-armored HMMWV for the US Army as a Battalion Scout Vehicle. The aim was to provide protection against 7.62 mm armor-piercing projectiles, 155 mm artillery air bursts and small (1 lb) mine blasts. In the end, the scout program was closed, but the Army ordered 160 M1109 HMMWVs for military police units in Somalia by rapid procurement. 6,820 lb (3,090 kg) payload, GVW of 12,100 lb (5,489 kg).