2006-2008 Hummer H3: Technical Specifications
Updated: 11/23/08
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Specs for this generation Hummer H3 include everything from fuel mileage to seating capacity to options availability.
Vehicle Dimensions
| Specification | 4-door wagon | |
| Wheelbase, in. | 111.9 | |
| Overall Length, in. | 186.7 | |
| Overall Width, in. | 85.5 | |
| Overall Height, in. | 74.5 | |
| Curb Weight, lbs. | 4700 | |
| Cargo Volume, cu. ft. | 55.7 | |
| Standard Payload, lbs. | -- | |
| Fuel Capacity, gals. | 23.0 | |
| Seating Capacity | 5 | |
| Front Head Room, in. | 40.6 | |
| Max. Front Leg Room, in. | 41.9 | |
| Rear Head Room, in. | 39.9 | |
| Max. Rear Leg Room, in. | 35.0 | |
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Specifications Key: NA = not available; "--" = measurement does not exist. |
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Powertrain Options and Availability
In its first season, the H3's 3.5-liter inline five-cylinder engine developed 220 horsepower. Output grew to 242 hp for 2007, as the five-cylinder was enlarged to 3.7 liters. Both engines drove either a five-speed manual transmission or a four-speed automatic. All-wheel drive included low-range gearing. A new-for-2008 Alpha model got a 300-hp 5.3-liter V8.
| Engines | cu. in |
Horse- power | Torque | Transmission: |
Consumer Guide Observed |
| dohc I5 | 3.5 / 211 | 220 | 225 | 5-speed manual: 16/20 4-speed automatic: 16/19 |
5-speed manual: -- 4-speed automatic: -- |
| dohc I5 | 3.7 / 223 | 242 | 242 | 5-speed manual: 15/20 4-speed automatic: 15/19 |
5-speed manual: -- 4-speed automatic: -- |
| ohv V8 | 5.3 / 325 | 300 | 320 | 4-speed automatic: 13/16 | 4-speed automatic: -- |
|
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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