GMC Sierra 2500 HD vs HUMMER H3T
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2010 HUMMER H3T
Overview
| Spec | GMC Sierra 2500 HDPro | HUMMER H3TBase |
|---|---|---|
| Selected trim | Pro | Base |
| Body style | Truck (Regular Cab) | Truck (Crew Cab) |
| Drivetrain | rear wheel drive | four wheel drive |
| Fuel type | regular unleaded | regular unleaded |
| Transmission | 10-speed shiftable automatic | 5-speed manual |
| Engine type | gas | gas |
| Model year | 2026 | 2010 |
Pricing & market
| Spec | GMC Sierra 2500 HDPro | HUMMER H3TBase |
|---|---|---|
| MSRP | $46,700 | $30,915 (best) |
| For sale now | 0 | 0 |
Fuel economy & range
| Spec | GMC Sierra 2500 HDPro | HUMMER H3TBase |
|---|---|---|
| Combined MPG | — | 15 MPG (best) |
| City MPG | — | 14 MPG (best) |
| Highway MPG | — | 18 MPG (best) |
| Fuel tank | 36 gal (best) | 27 gal |
Performance
| Spec | GMC Sierra 2500 HDPro | HUMMER H3TBase |
|---|---|---|
| Horsepower | 401 hp (best) | 239 hp |
| Torque | 464 lb-ft (best) | 241 lb-ft |
| Engine size | 6.6 L (best) | 3.7 L |
| Cylinders | V8 | I5 |
Size & capability
| Spec | GMC Sierra 2500 HDPro | HUMMER H3TBase |
|---|---|---|
| Seating | 3 seats | 5 seats (best) |
| Doors | 2 | 4 (best) |
| Cargo volume | — | 33.5 cu ft (best) |
| Towing capacity | 14,500 lbs (best) | 4,400 lbs |
| Payload | 3,689 lbs (best) | 1,090 lbs |
| Curb weight | 6,267 lbs | 4,911 lbs (best) |
| Ground clearance | 10.2 in (best) | 9.5 in |
| Wheelbase | 142 in (best) | 134.2 in |
| Length | 236.3 in (best) | 212.7 in |
| Width | 81.8 in (best) | 75 in |
| Height | 79.9 in (best) | 72.1 in |
Safety & recalls
| Spec | GMC Sierra 2500 HDPro | HUMMER H3TBase |
|---|---|---|
| Open recalls (YMM scope) | None reported | None reported |
Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.
Trim overview
All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.
| Trim | GMC Sierra 2500 HD | HUMMER H3T |
|---|---|---|
| 1 | Pro $46,700 MSRP(Currently comparing) | Base $30,915 MSRP(Currently comparing) |
| 2 | Pro $48,600 MSRP | Alpha $35,680 MSRP |
| 3 | Pro $48,800 MSRP | Alpha $39,205 MSRP |
| 4 | Pro $50,400 MSRP | — |
| 5 | Pro $50,600 MSRP | — |
| 6 | Pro $49,500 MSRP | — |
| 7 | Pro $51,400 MSRP | — |
| 8 | Pro $51,600 MSRP | — |
| 9 | Pro $53,200 MSRP | — |
| 10 | Pro $53,400 MSRP | — |
| 11 | SLE $53,500 MSRP | — |
| 12 | SLE $55,600 MSRP | — |
| 13 | SLE $55,800 MSRP | — |
| 14 | SLE $57,400 MSRP | — |
| 15 | SLE $57,600 MSRP | — |
| 16 | SLT $64,700 MSRP | — |
| 17 | SLT $65,000 MSRP | — |
| 18 | AT4 $71,600 MSRP | — |
| 19 | AT4 $71,800 MSRP | — |
| 20 | Denali $75,000 MSRP | — |
| 21 | Denali $75,200 MSRP | — |
| 22 | AT4X $83,700 MSRP | — |
| 23 | Denali Ultimate $93,800 MSRP | — |
| 24 | Denali Ultimate $94,100 MSRP | — |