The Hummer H2 SUT 6.2i V8, produced from 2007 to 2009, represented a unique offering in the large SUV segment. Building upon the foundation of the H2, the SUT (Sport Utility Truck) variant combined the iconic Hummer styling with the practicality of a pickup truck bed. Positioned as a premium, capable vehicle, the 6.2-liter V8 engine and automatic transmission configuration was the top-tier powertrain option for the H2 SUT, aimed at buyers seeking substantial power and towing capacity. It was a late-production model, arriving after GM’s initial efforts to refine the H2 platform and address some early criticisms.
Technical Specifications
| Brand | Hummer |
| Model | H2 |
| Generation | H2 SUT |
| Type (Engine) | 6.2i V8 (398 Hp) 4×4 Automatic |
| Start of production | 2007 |
| End of production | 2009 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Off-road vehicle, Pick-up |
| Seats | 4 |
| Doors | 4 |
| Fuel consumption (urban) | 28 l/100 km (8.4 US mpg, 10.1 UK mpg, 3.6 km/l) |
| Fuel consumption (extra urban) | 11 l/100 km (21.4 US mpg, 25.7 UK mpg, 9.1 km/l) |
| Fuel consumption (combined) | 20 l/100 km (11.8 US mpg, 14.1 UK mpg, 5 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Maximum speed | 158 km/h (98.18 mph) |
| Weight-to-power ratio | 7.6 kg/Hp, 131.9 Hp/tonne |
| Weight-to-torque ratio | 5.4 kg/Nm, 186.6 Nm/tonne |
| Power | 398 Hp @ 5700 rpm |
| Power per litre | 64.6 Hp/l |
| Torque | 563 Nm @ 4300 rpm (415.25 lb.-ft. @ 4300 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | L92 |
| Engine displacement | 6162 cm3 (376.03 cu. in.) |
| Number of cylinders | 8 |
| Engine configuration | V-engine |
| Cylinder Bore | 103.25 mm (4.06 in.) |
| Piston Stroke | 92 mm (3.62 in.) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | OHV, VVT |
| Engine oil capacity | 5.7 l (6.02 US qt | 5.02 UK qt) |
| Coolant | 14.6 l (15.43 US qt | 12.85 UK qt) |
| Kerb Weight | 3017 kg (6651.35 lbs.) |
| Max. weight | 3901 kg (8600.23 lbs.) |
| Max load | 884 kg (1948.89 lbs.) |
| Trunk (boot) space – minimum | 623 l (22 cu. ft.) |
| Trunk (boot) space – maximum | 1492 l (52.69 cu. ft.) |
| Fuel tank capacity | 121 l (31.96 US gal | 26.62 UK gal) |
| Length | 5170 mm (203.54 in.) |
| Width | 2063 mm (81.22 in.) |
| Height | 2012 mm (79.21 in.) |
| Wheelbase | 3118 mm (122.76 in.) |
| Front track | 1763 mm (69.41 in.) |
| Rear (Back) track | 1763 mm (69.41 in.) |
| Ride height (ground clearance) | 245 mm (9.65 in.) |
| Drag coefficient (Cd) | 0.6 |
| Minimum turning circle (turning diameter) | 13.25 m (43.47 ft.) |
| Approach angle | 39.8° |
| Departure angle | 37.1° |
| Ramp-over (brakeover) angle | 23.5° |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 6 gears, automatic transmission |
| Front suspension | Torsion |
| Rear suspension | Rigid axle suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Ventilated discs |
| Assisting systems | ABS (Anti-lock braking system) |
| Tires size | 315/70 R17 |
| Wheel rims size | 17 |
Powertrain & Engine Architecture
The heart of the H2 SUT 6.2i was the GM L92 6.2-liter V8 engine. This engine, part of the GM Vortec family, was a significant upgrade over the earlier 6.0-liter engine offered in the H2. It featured aluminum cylinder heads, a cast iron block, and a robust bottom end designed for durability and high torque output. The L92 utilized multi-port fuel injection and a single camshaft per bank, employing variable valve timing (VVT) to optimize performance and efficiency across the rev range. The engine produced 398 horsepower at 5700 rpm and 415 lb-ft of torque at 4300 rpm. Paired exclusively with a six-speed automatic transmission (likely the 6L80E), the powertrain was geared towards providing strong acceleration and towing capability. The 6L80E offered smoother shifts and a wider gear ratio spread compared to older automatic transmissions, contributing to improved fuel economy (though still relatively low by modern standards) and overall drivability.
Driving Characteristics
The H2 SUT 6.2i delivered a driving experience characterized by substantial power and a commanding presence. While not a nimble vehicle due to its size and weight, the 6.2-liter V8 provided ample acceleration for highway merging and passing maneuvers. The automatic transmission, while smooth, wasn’t particularly quick to downshift, and the overall feel was more about effortless cruising than sporty performance. Compared to the earlier 6.0-liter H2, the 6.2-liter offered a noticeable improvement in responsiveness. The SUT’s pickup bed, while reducing interior space compared to the standard H2, added a level of utility that appealed to owners who needed to haul cargo. The ride quality, while improved over earlier iterations of the H2, remained truck-like, with noticeable body roll in corners.
Equipment & Trim Levels
The H2 SUT 6.2i was generally well-equipped, reflecting its premium positioning. Standard features typically included leather upholstery, heated front seats, a premium sound system, automatic climate control, and power-adjustable pedals. The SUT also featured a unique sliding rear window and a power-operated tonneau cover for the bed. Optional extras included a navigation system, a sunroof, and upgraded audio options. Interior trim was generally focused on durability and functionality rather than outright luxury, with a rugged aesthetic that aligned with the Hummer brand image.
Chassis & Braking
The H2 SUT utilized a body-on-frame construction, providing a robust and durable platform for off-road use. The suspension consisted of a torsion bar front suspension and a rigid axle rear suspension. Braking duties were handled by ventilated disc brakes at all four corners, assisted by an anti-lock braking system (ABS). The SUT’s substantial weight necessitated a strong braking system, but stopping distances were still relatively long. The vehicle’s high ground clearance and capable four-wheel-drive system made it reasonably adept at handling moderate off-road terrain.
Market Reception & Comparison
The H2 SUT 6.2i received mixed reviews from automotive critics. While the engine and transmission were praised for their performance, the vehicle’s poor fuel economy, large size, and relatively high price point were common criticisms. Compared to other large SUVs of the era, such as the Chevrolet Tahoe or Ford Expedition, the H2 SUT offered a more distinctive and rugged image, but at a significant premium. The 6.2-liter engine offered a noticeable performance advantage over the base engines available in those competitors, but fuel economy was considerably worse. Reliability was generally acceptable, but the H2 SUT’s complexity and weight could lead to higher maintenance costs.
Legacy
The Hummer H2 SUT 6.2i represents a unique chapter in automotive history. As one of the last models produced under the Hummer brand before its discontinuation, it holds a certain appeal for collectors and enthusiasts. The 6.2-liter V8 engine, while thirsty, is known for its durability and relatively straightforward maintenance. On the used car market, H2 SUTs in good condition command a premium, particularly those with low mileage and well-maintained service records. Despite its age, the H2 SUT remains a distinctive and capable vehicle, embodying the bold and unapologetic spirit of the Hummer brand.
