HMMWV Hummer 1 ¼-Ton, 4X4

© Brooke Clarke, N6GCE

Background 
Models 
Manuals 
Links 

Background

One day while driving down the 101 freeway going South to Santa Barbara I passed a very long column of Hummers being delivered to the army at Fort Hunter Liget and/or Fort Ord. There were all kinds of models, most fitted with military radios. I started to study them. It turns out that A.M General would not sell me a Hummer then because they were not street legal and they had their hands full building them for the Army and other U.S. and foreign services. Later they developed the "Heavy Hummer" that had a Gross Vehicle Weight (GVW) in excess of 10,000 pounds. This required not only adding heavier springs for the vertical load but also a lot of changes to the drive line to handle the higher torque that propelling the heavier vehicle required. With this higher GVW the rules change for street licensing and made the Hummer street legal. A friend purchased one of the first 100 and had it custom painted a civilian camo (the factory could not use the same robot pattern they used for the Army for legal reasons). My friend ended selling his back to A.M. General because of all the problems it had. One of the problems was that there was nowhere he could go that had trained mechanics. If the mechanic is not trained on the Hummer in the process of fixing one problem, he can create one or more new problems.
Note:  The most reliable vehicles are those that are made in very large numbers.  This way the manufacturer gets all the bugs out.  Vehicles that are made in smaller numbers, independent of the selling price, will have more problems.  A friend had a BMW, don't remember the model number, but it was a V-12 engine and the control layout looked as if it came out of an airplane.  Although the warranty would fix problems, that's not much consolation when the car is in the shop more than it's on the road.  A V-8 engine Rolls Royce is in the same category.

The HMMWV is in the limited production category and so is expensive to maintain.  They also were designed for use off road and so the military diesel engine versions have a maximum highway speed of about 55 MPH (which used to be the US national speed limit, but that law was overturned as a violation of states rights.)

Models

Model
Drawing
Description
Pass
Armor
Winch
Curb Wt
Len
Ht
M966 M966
TOW missile carrier 2
basic N
?
180 73
M996 M996
Mini-ambulance, 2-litter 2+2
basic ?
8,380 202
86
M997 M997
Hard-top maxi-ambulance, 4-litter 2+4
basic N
9,100 202 102
M998 M998
Cargo/troop carrier soft top
4
basic
N
7,880
180 69
M1025 M1025
Slope back, armament carrier
M60 7.62 mm M. G.
4
basic
N
8,200 180 73
M1026 M1043 Slope back Armament carrier
Mk 19 40 mm Grenade Launcher
4
basic
N
8,200 185
73
M1035 M1035
Soft-top ambulance, 2-litter 4+2
basic
N
7,700 180 69
M1036 M1036
TOW missile carrier 2
basic
Y
8,200 185 73
M1037 M1037
S-250 shelter carrier 2
basic
N
8,660

69
M1038 M1038
Cargo/troop Carrier 4
basic
Y
7,700 185 69
M1042 M1042 S-250 shelter carrier 2
basic
Y
8,660 185 69
M1043 M1043
Slope back, armament carrier
Mk 19 40 mm Grenade Launcher
4
extra
N
8,400
180 73
M1044 M1044
Slope back, armament carrier
M2 50 Cal M. G.
4
extra
Y
8,400 185 73
M1045 M1045
TOW missile carrier 2
extra
N
8,400 180 73
M1046 M1045 TOW missile carrier 2
extra
Y
8,400 185 73
M1069
Tractor for M119 105-mm light gun ?


?


M1097 M1097
Canvas top truck 2+
basic
N
10,000
180
M1097A1
M1097 Canvas top truck 2+
basic
Y
10,000


M1109
Slope back Armament carrier
M60, 7.62mm machine gun
M2 .50 caliber machine gun or
MK 19 Grenade Launcher
4
Up
Y
?


M1114
Slope back Armament carrier
M60, 7.62mm machine gun
M2 .50 caliber machine gun or
MK 19 Grenade Launcher
Bushmaster 25mm autocannon?
4
Up
Y
?


M1116



Up
N
?


M1123
M1123

2
?
N
?
180
69
Note: the A2 version adds a Pintle Hook & towing package for towing standard military trailers.

Manuals

9-2320-280 Truck

TM 9-2320-280-10-HR  Hand receipt covering contents of Components Of End Item (COEI) Basic Issue Items (BII), and additional authorization list (AAL for

TM 9-2320-280-10 Truck, Utility

LO 9-2320-280-12  TRUCK, UTILITY:
TM 9-2320-280-20-1  Unit Maintenance Volume 1 of 3 Truck, Utility:
TM 9-2320-280-20-2  Unit Maintenance Volume 2 of 3 Truck, Utility:
TM 9-2320-280-20-3  Unit Maintenance Volume 2 of 3 Truck, Utility:
TM 9-2320-280-24P-1   Unit, Direct Support and General Support Maint Repair, Parts & Special Tools List , Vol. 1 of 2, for Turck, Utility:
TM 9-2320-280-24P-2   Unit, Direct Support and General Support Maint Repair, Parts & Special Tools List , Vol. 2 of 2, for Turck, Utility:
MWO 9-2320-280-20-7   Modification of 1-1/4 Ton Vehidcles, Cargo/Troop Carrier, TOW Carrier, and Arment Carrier, M998, M998A1, M1038, M1038A1, M966, M966A1, M1026, AND M1026A1
Rear Frame Mod ( i.e. add Pintle are related items)  to allow towing trailers with up to 3,400 pounds GVW.
TM 9-2320-280-34  Direct Support and General Support Maintenance for
TO 10-5411-231-13&P  Cargo Bed Cover (CBC) HMMWV Type 1 NSN 5411-01-467-3243 (Camo) NSN 5411-479-1928 (Sand)
          Replaces top bows and canvas on long bed versions of the HMMWV. Can be locked.  Is NOT a shelter.

TM 1-4940-355-12&P   Shop Equipment Contact maintence (SECM) Includes the main (center) container, 2 side boxes and an overhead cargo rack.  When the SECM is installed on the HMMWV it provides for the transport of aircraft maintenance repair parts, tools and equipment.

11-2300  Radio Installation

TB 11-2300-478-30-1   Radio Installation Procedures for the High Mobility MultipurposeWheeled Vehicles (HMMWV):

11-2300  GRC-213 PRC-104 H.F. Radio Installation

TM 11-2300-476-14&P Installation Kits, Electronic Equipment: MK-2442/GRC-213 for

11-2300  GRC-193A PRC-104 H.F. Radio Installation

TM 11-2300-475-13&P-6   Installation Kit, Electronic Equipment MK-2541/GRC-193A (NSN 5820-01-227-5842) in

11-2300  GRC-193A PRC-119 SINCGARS VHF Radio Installation

TB 11-5820-890-20-29   Installation Kit, Electronic Equipment MK-2327/VRC (NSN 5895-01-229-1285) (EIC: N/A) to permit Installation of Radio Sests: AN/VRC-89 and 92 SERIES, AN/VRC-91 (DUAL) Series or AN/VRC-92 (Dual) Series in a
TB 11-5820-890-20-90   Installation Kit, Electronic Equipment MK-2328/VRC (NSN 5895-01-297-8000) (EIC: N/A)  to permit Installation of Radio Sests  AN/VRC-87/88/90 Series and AN/VRC-89/91/92 Series in a

5985-426  AB-1386 Mast Installation

TB 11-5985-426-20   Mast AB-1386/U (NSN 5985-01-381-6 (EIC: N/A) on Utility Truck: Cargo/Troop Carier, 1-1/4 Ton, 4X M998; Truck, Utility

Links

Schott Enterprises (army4x4.com)- Hummer Sales - these are military hummers sold for off road use only
The Military Vehicle Forum is a web site where owners and others post Hummer related information.
There is a Radio Controlled (RC) Hummer model made by Tamia.
Surplus Enterprizes, Inc - no parts listed on web, need to call them
HummerNet.Com - on line magazine
Stinger Accessories - custom components
D.Lain Fabrications - Custom Heavy-Duty Cargo Rack
National Transmission - Mattracks Systems
Lamborgini made a similar vehicle the LM002 based on an off shore boat engine produced in 1984 it weighed 3100kg had a v12,dohc,4v/cyl. 455hp,369lbft,tranie 2x5m ,0-60 in 7.9 ,top speed of 120 ,also it was 4wd front-engine- have not found a web reference yet
David W. Uhrig - Military Vehicle Broker & Appraisal Service - note that Army Hummers are not street legal (see above)
Military Vehicles magazine - Links -
Geoff's Humvee page -
Military Vehicle Preservation Association (MVPA) - Links -
Wenzlu Engineering - HMMWN Info Center - quick erecting telescopic masts -
Military M998 HMMWV Series -
Off-Road.com - hummer pages - "The Most Serious 4x4 On Earth"
olive-drab.com - Introduction To Buying and Owning Military Vehicles -
Military Vehicles Mailing List - instructions on how to sign up for this list server - Military Vehicles Mailing List Archive - look here with your browser
Portrayal Press - military related books
DRMS - official government sales -
General Motors' Hummer H2 Vision Vehicle - GM makes a knock off version as a show car to test reaction
Hummer of Sacramento - new & used full size Hummers & the GM H2 + a Hummer Trailer -
Wheeled Vehicles: HMMWVsPg1, Pg2, Pg3, Pg4, Pg5 -  Table with clipart collection
American AFV Hand Book - Gamma Goat & HMMWV
FAS - High Mobility Multipurpose Wheeled Vehicle (HMMWV) -


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