Way back in 1979, AM General began preliminary design work on the M998 High Mobility Multipurpose Wheeled Vehicle (HMMWV, pronounced Humvee) that's now being used by our soldiers all over the world. The diesel-powered 11/4-ton truck was built to replace the M-151 and other tactical vehicles. In 1983, after a period of development and testing, the U.S. Army awarded AM General a 1.2-billion-dollar contract to produce 55,000 vehicles in five basic models and 15 configurations. Since then, the U.S. Armed Forces have continuously ordered more Humvee trucks, including the latest contract, which lasts through 2009, and will deliver nearly 200,000 vehicles to our troops and more than 50 friendly overseas nations. In 1992, AM General began producing a civilian version of the truck called the Hummer H1, which shares many of the unique features found on the military Humvee, including full-time four-wheel drive, the tried and true 6.5L diesel engine, a central tire inflation system (CTIS), independent front and rear suspensions with protected inboard disc brakes, and geared wheel hubs for incredible low-range crawling performance.
Mil-Spec
M1043A2 / 1045A2
Armament: TOW Missile Carrier w/ Supplemental Armor (44 Grain), Optional Brushguard, Winch, and CTIS
Curb Weight: 7,264 lb
Payload: 3,036 lb
Gross Vehicle Weight: 10,300 lb
Gross Axle Weight (Front): 4,500 lb
Gross Axle Weight (Rear): 6,500 lb
Body Length: 190.5 in
Body Width: 86 in
Body Height: 76 in
Min. Reduced Height: 76 in
Ground Clearance: 17 in
Approach Angle: 57
Departure Angle: 45
Acceleration (0-30mph): 9.4 sec
Acceleration (0-50mph): 26.1 sec
Cruising Range: 275 miles
Spring Rate (Front): 954 lb/in
Spring Rate (Rear): Variable
Troop Seating Capacity: 1 + 3
Engine Specifications
Type: 6.5L V-8 Turbo or Naturally Aspirated (N.A.) Diesel
Displacement: 395 ci (6,468 cc)
Compression Ratio: 20.2:1
Valve Configuration: Overhead valves
Valve Lifters: Hydraulic roller
Block: Gray iron/molybdenum (Nov. '01 - up)
Cylinder Head: Gray iron
Intake Manifold: Cast aluminum
Exhaust Manifold: Cast nodular iron
Main Bearing Caps: Cast nodular iron
Crankshaft: Cast nodular iron
Camshaft: Forged carbonized steel
Connecting Rods: Forged steel
Bore x Stroke: 4.06 in x 3.82 in (103 mm x 97 mm)
Fuel System: Indirect electronic (turbo) or mechanical fuel injection (N.A.)
Horsepower: 205 hp / 190 hp @ 3,200 rpm (turbo)160 hp / 170 hp @ 3,200 rpm (N.A.)
Torque: 440 / 385 lb-ft @ 1,800 rpm (turbo)290 lb-ft @ 1,800 rpm (N.A.)
Max. Engine Speed: 3,200 rpm
Emissions Control: Positive crankcase ventilation and catalyst