Hummer H2: Which Version to Buy and Why
The Hummer H2 catalogue covers one generation, produced from 2002 to 2013 as a Pickup double-cab, with seven listed versions. The real choice is therefore not between generations but between different specifications of the identically named 6.0 AT and 6.2 AT versions.
The Hummer H2 catalogue covers one generation, produced from 2002 to 2013 as a Pickup double-cab, with seven listed versions. The real choice is therefore not between generations but between different specifications of the identically named 6.0 AT and 6.2 AT versions. The 6.0 AT entries offer 315 or 325 hp with a 4-speed Automatic gearbox, while the 6.2 AT entries provide 393 or 409 hp and a 6-speed Automatic. Every listed version uses Gasoline, eight V-shaped cylinders, no boost and AWD. On the available figures, the 409 hp 6.2 AT is the performance choice, while a 6.0 AT is the only choice supported by measured fuel-consumption data.
Generation and version choice
The Hummer H2 has one generation in the supplied catalogue. It ran from 2002 to 2013, used the Pickup double-cab body and contains seven version records. Some records cover 2002–2013 and others 2005–2009, but all remain part of the same generation rather than representing separate generations or restylings.
Because several entries share exactly the same database name, power is essential when identifying them. The catalogue includes 6.0 AT with 315 hp, 6.0 AT with 325 hp, 6.2 AT with 393 hp and 6.2 AT with 409 hp. There are also repeated records whose differences include production dates, ground clearance, suspension or the availability of economy and performance measurements.
Hummer H2 engine and specs comparison
| Version | Power | Torque | Displacement | Fuel | Cylinders | Layout | Boost | Gearbox | Drive |
|---|---|---|---|---|---|---|---|---|---|
| 6.0 AT, 325 hp, 2005–2009 | 325 hp | 494 Nm | 5967 cc | Gasoline | 8 | V-shaped | No | 4-speed Automatic | AWD |
| 6.2 AT, 393 hp, 2005–2009 | 393 hp | 563 Nm | 6162 cc | Gasoline | 8 | V-shaped | No | 6-speed Automatic | AWD |
| 6.2 AT, 409 hp, 2005–2009 | 409 hp | 570 Nm | 6162 cc | Gasoline | 8 | V-shaped | No | 6-speed Automatic | AWD |
| 6.2 AT, 393 hp, 2002–2013 | 393 hp | 563 Nm | 6162 cc | Gasoline | 8 | V-shaped | No | 6-speed Automatic | AWD |
| 6.2 AT, 409 hp, 2002–2013 | 409 hp | 570 Nm | 6162 cc | Gasoline | 8 | V-shaped | No | 6-speed Automatic | AWD |
| 6.0 AT, 315 hp, 2002–2013 | 315 hp | 493 Nm | 5967 cc | Gasoline | 8 | V-shaped | No | 4-speed Automatic | AWD |
| 6.0 AT, 325 hp, 2002–2013 | 325 hp | 494 Nm | 5967 cc | Gasoline | 8 | V-shaped | No | 4-speed Automatic | AWD |
The 6.2-litre versions add 195 cc over the 5967 cc 6.0 AT. Against the 325 hp 6.0 AT, the 393 hp 6.2 AT adds 68 hp and 69 Nm, while the 409 hp 6.2 AT adds 84 hp and 76 Nm. The gearbox also changes from a 4-speed Automatic to a 6-speed Automatic.
Calculated from the catalogue figures, the 315 hp 6.0 AT produces about 52.8 hp per litre, and the 325 hp 6.0 AT produces about 54.5 hp per litre. The 393 hp 6.2 AT reaches about 63.8 hp per litre, while the 409 hp 6.2 AT reaches about 66.4 hp per litre. The 409 hp version therefore extracts the most power from each litre among the listed H2 specifications.
Performance and fuel economy
| Version | 0–100 km/h | Top speed | City consumption | Highway consumption | Combined consumption |
|---|---|---|---|---|---|
| 6.0 AT, 325 hp, 2005–2009 | 12 s | 180 km/h | not measured | not measured | not measured |
| 6.2 AT, 393 hp, 2005–2009 | not measured | not measured | not measured | not measured | not measured |
| 6.2 AT, 409 hp, 2005–2009 | 7.8 s | 180 km/h | not measured | not measured | not measured |
| 6.2 AT, 393 hp, 2002–2013 | not measured | not measured | not measured | not measured | not measured |
| 6.2 AT, 409 hp, 2002–2013 | 7.8 s | 180 km/h | not measured | not measured | not measured |
| 6.0 AT, 315 hp, 2002–2013 | 12 s | 180 km/h | 24.5 l/100 km | 14.4 l/100 km | 18.1 l/100 km |
| 6.0 AT, 325 hp, 2002–2013 | 12 s | 160 km/h | 24.5 l/100 km | 14.4 l/100 km | 18.1 l/100 km |
The measured acceleration result strongly favours the 409 hp 6.2 AT: its 7.8-second time is 4.2 seconds quicker than the 12-second result listed for the 6.0 AT versions. Its measured top speed is 180 km/h. The 315 hp 6.0 AT and the 2005–2009 325 hp 6.0 AT also have a listed 180 km/h maximum, while the 2002–2013 325 hp 6.0 AT is listed at 160 km/h.
Fuel economy cannot be compared fairly across the complete engine range because consumption for every 6.2 AT is not measured. The 315 hp and 2002–2013 325 hp 6.0 AT entries both list 24.5 l/100 km in the city, 14.4 l/100 km on the highway and 18.1 l/100 km combined. Consumption for the 2005–2009 325 hp 6.0 AT is not measured.
Weight, ground clearance, tank and wheel sizes
| Version | Kerb weight | Gross weight | Ground clearance | Tank | Wheel sizes |
|---|---|---|---|---|---|
| 6.0 AT, 325 hp, 2005–2009 | 2909 kg | 3901 kg | 257 mm | 121 l | not measured |
| 6.2 AT, 393 hp, 2005–2009 | 2985 kg | 3900 kg | 257 mm | 121 l | not measured |
| 6.2 AT, 409 hp, 2005–2009 | 2985 kg | 3900 kg | 257 mm | 121 l | not measured |
| 6.2 AT, 393 hp, 2002–2013 | 2985 kg | 3900 kg | 254 mm | 121 l | not measured |
| 6.2 AT, 409 hp, 2002–2013 | 2985 kg | 3900 kg | 254 mm | 121 l | not measured |
| 6.0 AT, 315 hp, 2002–2013 | 2909 kg | 3901 kg | 255 mm | 121 l | not measured |
| 6.0 AT, 325 hp, 2002–2013 | 2909 kg | 3901 kg | 255 mm | 121 l | not measured |
Every 6.2 AT weighs 2985 kg, which is 76 kg more than the 2909 kg 6.0 AT. However, the additional power more than offsets that increase. The 315 hp 6.0 AT carries about 9.2 kg per horsepower, the 325 hp 6.0 AT about 9.0 kg per horsepower, the 393 hp 6.2 AT about 7.6 kg per horsepower and the 409 hp 6.2 AT about 7.3 kg per horsepower. This makes the 409 hp 6.2 AT the strongest power-to-weight choice.
Ground clearance varies only slightly across the catalogue. The highest listed figure is 257 mm for the 2005–2009 versions, followed by 255 mm for the 2002–2013 6.0 AT entries and 254 mm for the 2002–2013 6.2 AT entries. All versions have a 121-litre tank. Wheel sizes are not measured for any version.
The front suspension is Independent, torsion on every version. The listed 6.2 AT entries and the 2005–2009 325 hp 6.0 AT use Independent, spring rear suspension; the 2002–2013 315 hp and 325 hp 6.0 AT entries use Independent, pneumatic rear suspension. All versions have Ventilated disc front brakes and Disc rear brakes.
Which Hummer H2 version should you buy?
Choose the 409 hp 6.2 AT if measured acceleration and the best calculated power-to-weight ratio matter most. It delivers 570 Nm, completes 0–100 km/h in 7.8 seconds and carries about 7.3 kg per horsepower. Compared with the 325 hp 6.0 AT, it supplies 84 hp and 76 Nm more while adding 76 kg, and it pairs that output with a 6-speed rather than 4-speed Automatic gearbox.
Choose the 393 hp 6.2 AT if you want most of the 6.2-litre specification without requiring the highest output. It has the same 6162 cc displacement, 6-speed Automatic, AWD, 2985 kg kerb weight and 121-litre tank as the 409 hp version, but produces 16 hp and 7 Nm less. Its 0–100 km/h time, top speed and fuel consumption are not measured, so the data does not support a direct performance or economy claim beyond those output differences.
Among the 6.0 AT versions, the 325 hp entry provides 10 hp and 1 Nm more than the 315 hp entry at the same 5967 cc displacement and 2909 kg kerb weight. The 315 hp 6.0 AT nevertheless has the clearer complete specification: 12 seconds to 100 km/h, a 180 km/h top speed and measured city, highway and combined consumption. The 2002–2013 325 hp 6.0 AT has the same measured consumption and acceleration but a listed top speed of 160 km/h.
For a buyer comparing only the numbers supplied here, the 409 hp 6.2 AT is the most convincing performance selection. The 315 hp 6.0 AT is the better documented alternative when measured fuel consumption is essential. No reliability, problems, pricing or sale data is provided, so those factors cannot be used to rank these versions.