2025 GMC Sierra 1500 Reg Cab 140" Pro Seating Capacity Specs
Seating Capacity Specs
| Seating Capacity | 3 passengers |
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All Available Specs
Basics
| Year | 2025 |
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| Make | GMC |
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| Model | Sierra 1500 |
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| Trim | Reg Cab 140" Pro |
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| Vehicle Type | Truck |
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Seating & Access
Powertrain
| Engine | TurboMax |
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| Engine Configuration | TurboMax |
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| Transmission | 8-Speed Automatic, (Column Shifter) Electronically Controlled |
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| Drivetrain | Rear Wheel Drive |
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Power & Performance
| Horsepower | 310 HP |
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| Horsepower RPM | 5,600 rpm |
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| Torque | 430 ft-lbs |
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| Torque RPM | 3,000 rpm |
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Fuel Efficiency
| City MPG | 18 mpg |
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| City L/100km | 13.1 L/100km |
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| Highway MPG | 21 mpg |
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| Highway L/100km | 11.2 L/100km |
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| Combined MPG | 20 mpg |
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| Combined L/100km | 11.8 L/100km |
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Fuel Tank & Range
| Gas Tank Size (gal) | 28.0 gal |
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| Gas Tank Size (L) | 106.0 L |
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| City Range (miles) | 504 miles |
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| City Range (km) | 811 km |
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| Highway Range (miles) | 588 miles |
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| Highway Range (km) | 946 km |
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| Combined Range (miles) | 560 miles |
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| Combined Range (km) | 901 km |
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Tires
| Front Tire Size | 255/70R17 |
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| Front Tire Width | 255 |
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| Front Tire Aspect Ratio | 70 |
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| Front Rim Size | 17 |
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| Rear Tire Size | 255/70R17 |
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| Rear Tire Width | 255 |
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| Rear Tire Aspect Ratio | 70 |
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| Rear Rim Size | 17 |
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Wheels
| Front Wheel Size | 17 x 8 |
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| Rear Wheel Size | 17 x 8 |
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| Front Wheel Material | Steel |
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| Rear Wheel Material | Steel |
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Weight & Capacity
| Payload (lbs) | 2,441 lbs |
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| Curb Weight (lbs) | 4,359 lbs |
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| Weight to HP Ratio | 14.1 lbs/HP |
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| GVWR (lbs) | 6,800 lbs |
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Legroom
| First Row Legroom (in) | 44.5 in. |
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| First Row Legroom (cm) | 113 cm |
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Headroom
| First Row Headroom (in) | 43.1 in. |
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| First Row Headroom (cm) | 109 cm |
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Turning Measurements
| Turning Diameter C2C (ft) | 44.0 ft |
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| Turning Diameter C2C (m) | 13.4 m |
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Height & Length
| Height (in) | 75 in. |
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| Height (cm) | 192 cm |
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| Height (ft) | 6.3 ft |
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| Height (m) | 1.9 m |
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| Length (in) | 229 in. |
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| Length (cm) | 583 cm |
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| Length (ft) | 19.1 ft |
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| Length (m) | 5.8 m |
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Width & Track
| Width w/o Mirrors (in) | 81 in. |
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| Width w/o Mirrors (cm) | 206 cm |
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| Width w/o Mirrors (ft) | 6.8 ft |
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| Width w/o Mirrors (m) | 2.1 m |
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Wheelbase
| Wheelbase (in) | 139 in. |
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| Wheelbase (cm) | 354 cm |
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| Wheelbase (ft) | 11.6 ft |
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| Wheelbase (m) | 3.5 m |
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