2008 Hummer H3X Alpha
Location of final assembly Shreveport, Louisiana
Body style 4-door, 5-passenger SUV
EPA size class Midsize sport/utility
Drivetrain layout Front engine, 4WD
Airbags Front, front side, side curtain
Engine type 90 V-8, alum block/heads
Bore x stroke, in 3.78 x 3.62
Displacement, ci/L 325/5.3
Compression ratio 9.9:1
Valve gear OHV, 2 valves/cyl
Fuel induction SFI
SAE horsepower, hp @ rpm 295 @ 5200
SAE torque, lb-ft @ rpm 317 @ 4000
Transmission type Hydra-Matic 4L60 4-speed automatic
1st 3.06:1
2nd 1.63:1
3rd 1.00:1
4th 0.70:1
Reverse 2.29:1
Axle ratio 4.10:1
Final drive ratio 2.87:1
Indicated rpm @ 60 mph 1800
Transfer-case model NV 241
Low-range ratio 4.03:1
Crawl ratio (1st x axle gears x low range) 50.1:1
Recommended fuel Regular unleaded
Wheelbase, in 111.9
Length, in 186.7
Width, in 85.5
Height, in 74.5
Track, f/r, in 65.0/65.5
Headroom, f/r, in 40.6/39.9
Legroom, f/r, in 41.9/35.0
Shoulder room, f/r, in 54.4/53.5
Cargo volume, behind 1st/2nd row, cu ft 55.7/29.5
Ground clearance, in 9.1
Approach/departure angle, deg 39.4/36.5
Load lift height, in25.3
Base curb weight, lb 4854
Weight distribution, f/r, % 53/47
Max payload capacity, lb 1150
GVWR, lb 6001
GCWR, lb 12,000
Max towing capacity, lb 6000
Fuel capacity, gal 23.0
Construction Ladder frame
Suspension, front/rear Independent, SLA torsion bar/solid axle, multi-leaf, anti-roll bar
Steering type Power-assisted rack-and-pinion
Ratio 17:1
Turns, lock to lock 3.25
Turning circle, ft 37.0
Brakes, front/rear 12.4-in vented disc; 12.3-in vented disc, ABS
Wheels 16x7.5-inch aluminum
Tires P265/75R16 Goodyear AT
0-60 mph, sec 7.8 (mfr est)
EPA fuel economy, city/hwy, mpg 13/17 (est)
CO2 emissions 1.33 lb/mile
Base price $39,260 (Alpha)
Price as tested $43,730 (Alpha H3X)