2003-2008 Hummer H2: Technical Specifications
Updated: 11/23/08
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Specs for this generation Hummer H2 include everything from fuel mileage to seating capacity to options availability.
Vehicle Dimensions
| Specification | 4-door wagon | crew cab |
| Wheelbase, in. | 122.8 | 122.8 |
| Overall Length, in. | 189.8 | 203.5 |
| Overall Width, in. | 81.2 | 81.2 |
| Overall Height, in. | 77.8 | 78.5 |
| Curb Weight, lbs. | 6400 | 6400 |
| Cargo Volume, cu. ft. | 86.6 | -- |
| Standard Payload, lbs. | -- | -- |
| Fuel Capacity, gals. | 32.0 | 32.0 |
| Seating Capacity | 6 | 5 |
| Front Head Room, in. | 40.5 | 40.5 |
| Max. Front Leg Room, in. | 41.3 | 41.3 |
| Rear Head Room, in. | 39.7 | 39.7 |
| Max. Rear Leg Room, in. | 38.6 | 38.6 |
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Specifications Key: NA = not available; "--" = measurement does not exist. |
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Powertrain Options and Availability
Initial H2s held a 316-horsepower 6.0-liter V8 engine, mated to a four-speed automatic transmission. During 2004, the V8 increased to 325 horsepower. In 2008, a 393-hp 6.2-liter V8 paired with a 6-speed automatic replaced a 325-hp 6.0-liter V8.
| Engines | cu. in |
Horse- power | Torque | Transmission: |
Consumer Guide Observed |
| ohv V81 | 6.0 / 364 | 316 | 360 | 4-speed automatic: -- | 4-speed automatic: 10.7 |
| ohv V81 | 6.0 / 365 | 325 | 365 | 4-speed automatic: -- | 4-speed automatic: -- |
| ohv V81 | 6.2 / 376 | 393 | 415 | 6-speed automatic: -- | 6-speed automatic: -- |
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1. Hummer H2 exceeds the weight limit for vehicles tested in the EPA fuel-economy program. Specifications Key: NA = not available; "--" = measurement does not exist. |
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Built In: USA
Drive Wheels: longitudinal front-engine/all-wheel drive
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