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2026 GMC Sierra 3500 HD Double Cab Pro
Mcallen, TX
78501
4.2
Consumer
Pricing
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Specifications
Dimensions, Weights & Capacities
Curb Weight | 6798 lbs. | ||
|---|---|---|---|
Fuel Capacity | 36.0 gallons | ||
Front Head Room | 43.0 inches | ||
Front Leg Room | 44.5 inches | ||
Max Seating Capacity | 6 | ||
Minimum Ground Clearance | 11.2 inches | ||
Overall Length | 257.2 inches | ||
Front Shoulder Room | 66.0 inches | ||
Towing Capacity, Maximum | 21900 lbs. | ||
Turning Diameter | 53.9 feet | ||
Wheel Base | 162.0 inches | ||
Truck Bed Volume | 84 cu.ft. | ||
Bed Length | 8.00 feet | ||
Gross Vehicle Weight Rating (GVWR) | 11300 lbs. | ||
Payload Capacity | 4464 lbs. |
Exterior
Alloy Wheels | Available | ||
|---|---|---|---|
Number of Doors | 4 doors | ||
Power Folding Exterior Mirrors | Available | ||
Privacy Glass | Available | ||
LED Headlights | Available |
Mechanical
Drivetrain | 2WD | ||
|---|---|---|---|
Transmission Type | Automatic | ||
10 speed | Available | ||
Recommended Fuel | Regular | ||
Hill Start Assist | Available | ||
Parking Assist System | Available |
Performance
Horsepower | 401 @ 5200 RPM | ||
|---|---|---|---|
Torque | 464 @ 4000 rpm | ||
Engine | V8, 6.6 Liter |
Warranty
Basic | 3 years / 36000 miles | ||
|---|---|---|---|
Powertrain | 5 years / 60000 miles | ||
Corrosion | 3 years / 36000 miles |
2026 GMC Sierra 3500 HD Double Cab Pro Standard Features
Next Steps to Buying Smart
2026 GMC Sierra 3500 HD Double Cab
KBB.com Review
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2026 GMC Sierra 3500 HD Double Cab
KBB.com Consumer Reviews
4.2
Consumer Rating
6 ratings
Value
4.3
Performance
4.5
Quality
4.2
Comfort
4.3
Reliability
4.0
Styling
4.8
Compare to Similar Vehicles
New 2026 GMC Sierra 3500 HD Double Cab Pro |  New 2025 GMC Sierra 1500 | New 2026 GMC Sierra 1500 Crew Cab | ||
|---|---|---|---|---|
| Price | N/A | $71,395 | $46,595 | |
| KBB.com Rating | N/A | 4.3 | N/A | |
| Consumer Rating | 4.2 | 4.0 | 4.0 | |
| Fuel Economy | N/A | City 15/Hwy 19/Comb 17 MPG | N/A | |
| Fuel Type | Gas | N/A | Gas | |
| Safety Rating | N/A | 5.0 | N/A | |
| Seating Capacity | 6 | 5 | 6 | |
| Basic Warranty | 3 years or 36000 miles | 3 years or 36000 miles | 3 years or 36000 miles | |
| Horsepower | 401 @ 5200 RPM | 355 @ 5600 RPM | 310 @ 5600 RPM | |
| Engine | V8, 6.6 Liter | V8, EcoTec3, DFM, 5.3 Liter | 4-Cyl, TurboMax, 2.7 Liter | |
| Drivetrain | 2WD | 4WD | 2WD |
Other 2026 GMC Sierra 3500 HD Double Cab Trims
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