2025 GMC Sierra 2500 HD Double Cab 149" Pro Seating Capacity Specs
Seating Capacity Specs
| Seating Capacity | 6 passengers |
|---|
All Available Specs
Basics
| Year |
2025 |
| Make |
GMC |
| Model |
Sierra 2500 |
| Trim |
HD Double Cab 149" Pro |
| Vehicle Type |
Diesel |
Seating & Access
Powertrain
| Engine Configuration |
8 |
| Engine Size (L) |
6.6 L |
| Engine Size (cu in) |
402.8 cu in |
| Transmission |
Allison 10-Speed Automatic |
| Drivetrain |
Rear Wheel Drive |
Power & Performance
| Horsepower |
401 HP |
| Horsepower RPM |
5,200 rpm |
| Torque |
464 ft-lbs |
| Torque RPM |
4,000 rpm |
| HP/Liter |
60.8 HP/L |
| HP/Cubic Inch |
1.0 HP/cu in |
Fuel Tank & Range
| Gas Tank Size (gal) |
36.0 gal |
| Gas Tank Size (L) |
136.3 L |
Tires
| Front Tire Size |
LT245/75R17E |
| Front Tire Width |
245 |
| Front Tire Aspect Ratio |
75 |
| Front Rim Size |
17 |
| Front Tire Load Capacity |
E |
| Rear Tire Size |
LT245/75R17E |
| Rear Tire Width |
245 |
| Rear Tire Aspect Ratio |
75 |
| Rear Rim Size |
17 |
| Rear Tire Load Capacity |
E |
Wheels
| Front Wheel Material |
Steel |
| Rear Wheel Material |
Steel |
Weight & Capacity
| Payload (lbs) |
3,641 lbs |
| Curb Weight (lbs) |
6,409 lbs |
| Weight to HP Ratio |
16.0 lbs/HP |
| GVWR (lbs) |
10,050 lbs |
Legroom
| First Row Legroom (in) |
44.5 in. |
| First Row Legroom (cm) |
113 cm |
| Second Row Legroom (in) |
35.2 in. |
| Second Row Legroom (cm) |
90 cm |
Headroom
| First Row Headroom (in) |
43.0 in. |
| First Row Headroom (cm) |
109 cm |
| Second Row Headroom (in) |
39.9 in. |
| Second Row Headroom (cm) |
101 cm |
Turning Measurements
| Turning Diameter C2C (ft) |
49.5 ft |
| Turning Diameter C2C (m) |
15.1 m |
Height & Length
| Height (in) |
79 in. |
| Height (cm) |
203 cm |
| Height (ft) |
6.7 ft |
| Height (m) |
2.0 m |
| Length (in) |
241 in. |
| Length (cm) |
612 cm |
| Length (ft) |
20.1 ft |
| Length (m) |
6.1 m |
Width & Track
| Width w/o Mirrors (in) |
81 in. |
| Width w/o Mirrors (cm) |
207 cm |
| Width w/o Mirrors (ft) |
6.8 ft |
| Width w/o Mirrors (m) |
2.1 m |
Wheelbase
| Wheelbase (in) |
149 in. |
| Wheelbase (cm) |
378 cm |
| Wheelbase (ft) |
12.4 ft |
| Wheelbase (m) |
3.8 m |