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Key specifications
- 98 in
- Bed Length
- Gas V8
- Engine Type
- 360 hp 300 hp 330 hp 300 hp
- Horsepower
- 3
- Seating Capacity
- 360 @ 4000
- SAE Net Torque @ RPM
- 300 @ 4400
- SAE Net Horsepower @ RPM
- 6.0L/364
- Displacement
- Gas V8
- Engine Type
- Torsion Bar
- Suspension Type - Front
- 2-Stage Multi-Leaf
- Suspension Type - Rear
- Not Available
- Axle Type - Front
- Full-Floating
- Axle Type - Rear
- N/A
- Maximum Trailering Capacity
- 2,625 lbs
- Fifth Wheel Hitch - Max Tongue Wt.
- 10,500 lbs
- Fifth Wheel Hitch - Max Trailer Wt.
- 1,575 lbs
- Wt Distributing Hitch - Max Tongue Wt.
- 600
- Cold Cranking Amps @ 0° F (Primary)
- 105
- Maximum Alternator Capacity (amps)
- Not Available
- Drum - Rear (Yes or )
- 13 x 1.1 in
- Rear Brake Rotor Diam x Thickness
- 12.8 x 1.5 in
- Front Brake Rotor Diam x Thickness
- Yes
- Disc - Rear (Yes or )
Notable features
Half- , three-quarter- and one-ton models
Choice of engines
Three cab styles
RWD or 4WD
More powerful turbo-diesel V-8 for 2006 (2500HD, 3500)
Engine
360 @ 4000 SAE Net Torque @ RPM
300 @ 4400 SAE Net Horsepower @ RPM
6.0L/364 Displacement
Gas V8 Engine Type
Suspension
Torsion Bar Suspension Type - Front
2-Stage Multi-Leaf Suspension Type - Rear
Not Available Axle Type - Front
Full-Floating Axle Type - Rear
Weight & Capacity
N/A Maximum Trailering Capacity
2,625 lbs Fifth Wheel Hitch - Max Tongue Wt.
10,500 lbs Fifth Wheel Hitch - Max Trailer Wt.
1,575 lbs Wt Distributing Hitch - Max Tongue Wt.
10,500 lbs Wt Distributing Hitch - Max Trailer Wt.
500 lbs Dead Weight Hitch - Max Tongue Wt.
5,000 lbs Dead Weight Hitch - Max Trailer Wt.
16,000 lbs Gross Combined Wt Rating
4,235 lbs Maximum Payload Capacity
4,235 lbs As Spec'd Payload
4,965 lbs As Spec'd Curb Weight
0 lbs Option Weight - Rear
0 lbs Option Weight - Front
2,122 lbs Curb Weight - Rear
2,843 lbs Curb Weight - Front
N/A Base Curb Weight
Not Available gal Aux Fuel Tank Capacity, Approx
34 gal Fuel Tank Capacity, Approx
10,494 lbs Gross Axle Weight Rating
4,965 lbs Curb Weight
0 lbs Total Option Weight
9,200 lbs Gross Vehicle Weight Rating
Electrical
600 Cold Cranking Amps @ 0° F (Primary)
105 Maximum Alternator Capacity (amps)
Brakes
Not Available Drum - Rear (Yes or )
13 x 1.1 in Rear Brake Rotor Diam x Thickness
12.8 x 1.5 in Front Brake Rotor Diam x Thickness
Yes Disc - Rear (Yes or )
Yes Disc - Front (Yes or )
Not Available Brake ABS System (Second Line)
Four-Wheel Brake ABS System
Pwr Brake Type
Photo & video gallery














Factory warranties
New car program benefits
Basic
3 years / 36,000 miles
Corrosion
6 years / 100,000 miles
Powertrain
5 years / 100,000 miles
Roadside Assistance
3 years / 36,000 miles
Certified Pre-Owned program benefits
Age / mileage
5 model years or newer / up to 75,000 miles
Basic
12 months / 12,000 miles bumper-to-bumper original warranty, then may continue to 6 years / 100,000 miles limited (depending on variables)
Dealer certification
172-point inspection
The good & the bad
The good
Performance with gasoline V-8
Automatic-transmission response
Quietness
The bad
Ride comfort
Fuel economy
Most recent
I have owned a Dodge Cummins and this 2006 GMC
2006 Duramax is great truck for pulling my travel trailer. When just the truck over 20 mpg and 13 pulling a 8,000 trailer. Very comfortable and stable on the road, plenty of power. I installed a Pioneer system with 7" screen, blue tooth, dvd, satellite radio and android auto. With that I have every option of a new truck
- Purchased a Used car
- Used for Towing
- Does recommend this car
Very reliable!
This truck is very powerfull great for towing has a grade break for slowing when going downhill. It is loaded with options and is a very comfortable ride!
- Purchased a Used car
- Used for Having fun
- Does recommend this car
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GMC Sierra 2500 history
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2023 GMC Sierra 2500 -
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2021 GMC Sierra 2500 -
2020 GMC Sierra 2500 -
2019 GMC Sierra 2500 -
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