liter diesel V8
lb-ft @ 1800 rpm
hp @ 3400 rpm
hp per liter
2004 HUMMER H1: ONE OF A
"Unique." "The original." "The world's premier off-road vehicle."
There are many ways to describe the HUMMER H1. Also fitting is
"cornerstone," since it's the foundation upon which the HUMMER sales
growth is built.
"The H1 is what started it all for HUMMER," said Michael C.
DiGiovanni, HUMMER general manager. "It's the vehicle that drew the
interest of adventurous consumers across the nation, as well as the
interest of GM. It offers superior off-road capabilities rugged
enough for the Baja and powerful highway performance."
Rugged enough for Baja
No matter whether H1
customers choose the 4-Door Wagon model or the 4-Door Open Top,
they'll rest assured knowing their vehicle can tackle the most
difficult terrain. That's because the HUMMER H1 is no SUV
afterthought. It wasn't designed to be satisfied with tackling 22
inches of snow or curb-high obstacles. In fact, it wasn't "designed"
as much as it was "engineered." More specifically, it was engineered
to meet the rigorous demands of the U.S. armed forces who needed a
vehicle with power, agility and durability like nothing in
existence. Strip away some refinements and creature comforts, and
the HUMMER H1 is still the "HUMVEE" so trusted and respected by the
Where does one start in describing H1's off-road capability? How
about its 16-inch vertical ground clearance - almost double that of
any other 4x4. Let's not overlook H1's dramatic approach and
departure angles of 72 degrees and 37.5 degrees, respectively, or
the 17-inch aluminum wheels shod with 37-inch tires. You may never
encounter the actual need, but there's a degree of comfort in
knowing this vehicle can ford a 30-inch deep body of water.
Four-wheel drive is standard and features TorqTrac 4 technology. It
automatically reduces tire spin on severe terrain or slippery
surfaces by applying the brake to the spinning wheel. This allows
the differential to redistribute torque to those wheels with
traction. As if that weren't enough, H1 owners may opt for the
Off-Road Adventure Package. This package is the ultimate in off-road
equipment, and includes a front and rear Eaton ELocker locking
differential. Activated instantaneously at the push of a button, the
front and rear differentials can be locked for optimum slow-speed
capability in climbing over large rocks or up long, steep grades.
The Off-road Adventure Package also includes a 12,000-pound winch
kit, 17-inch, two-piece aluminum wheels with dual beadlocks, and
Goodyear Wrangler MT/R tires. Goodyear GSA tires can be substituted
for the MT/R tires, if the customer so desires.
Included as standard equipment on every H1 are a Central Tire
Inflation System (CTIS) and a Runflat Tire System. CTIS enables H1
owners to adjust tire pressure on the move and adapt to varying
terrain. For example, if additional traction in snow, loose sand or
mud is required, the H1's tires can be deflated with the push of a
button from inside the vehicle. Another push of the same button when
traction conditions have improved re-inflates the tires. H1's
Runflat Tire System, meanwhile, enables drivers to continue driving
on a deflated tire for up to 20 miles at 30 mph - ideal when the
nearest service station is not right around the corner.
Further aiding peace of mind while off road are H1's low center of
gravity, long wheelbase (130 inches) and nearly 72-inch track. The
result is a vehicle that is extremely stable - on- and off-road.
Civilized enough for everyday
While H1 is rightly
considered the ultimate sport utility vehicle, it's also adept at
overcoming the obstacles commonly found in the asphalt jungle.
Interior creature comforts include an instrument panel specifically
designed to place major controls and switches within easy reach of
the driver. Audiophiles will enjoy the standard Monsoon audio system
with an integral six-disc CD changer. Other H1 features designed to
enhance convenience, comfort and safety include a heated windshield,
tire pressure gauge (part of CTIS), driver's express-down window,
heated power exterior mirrors and remote keyless entry.
The HUMMER H1 is so well-equipped that very few other options are
available. In addition to the Off-road Adventure Package, leather
seats with heating elements for the driver and front passenger are
A host of dealer-installed accessories are also available, enabling
H1 owners to customize their vehicle to best meet their specific
More power and plenty of poise
HUMMER H1 is powered by
a retuned 6.5L, turbo-diesel V-8 engine that for 2004 delivers 205
horsepower (152 kw) at 3400 rpm and an impressive 440 lb.-ft. (596
Nm) of torque at 1800 rpm. That's 10 horsepower (7 kw) and 10
lb.-ft. (14 Nm) of torque more than the 2003 powerplant. Yet
enhanced performance is only part of the engine's story. The
retuning also enables the 6500 to meet the more stringent emission
requirements starting in 2004. It's mated to GM's Hydra-Matic 4L80-E
electronically controlled four-speed automatic transmission. Over
time, this transmission monitors the customer's driving technique
and adjusts for driving style. The New Venture Gear Model 242
transfer case enables the driver to customize the drivetrain
configurations to match virtually any terrain.
H1 has a four-wheel fully independent suspension system and
variable-rate heavy-duty coil springs. The front suspension
incorporates a large stabilizer bar to improve handling and reduce
sway when cornering. The truck's four-channel ABS four-wheel power
disc brakes are mounted inboard as a component of the axle assembly,
making them less vulnerable to damage than conventional
"There's still nothing else on the road today with the panache of
the H1," said DiGiovanni. "No other SUV can match its off-road
capability and no other SUV - and very few vehicles in general -
have the attention-grabbing styling of the H1. It remains the
foundation upon which to build the HUMMER future."