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Key specifications
- 17,800 lbs
- Towing Capacity
- 98 in
- Bed Length
- Gas/Ethanol V8
- Engine Type
- 397 hp 360 hp
- Horsepower
- 380 @ 4200
- SAE Net Torque @ RPM
- 360 @ 5400
- SAE Net Horsepower @ RPM
- 6.0L/366
- Displacement
- Gas/Ethanol V8
- Engine Type
- Semi Floating
- Axle Type - Rear
- Independent
- Axle Type - Front
- Multi-Leaf
- Suspension Type - Rear
- Independent
- Suspension Type - Front
- Not Available gal
- Aux Fuel Tank Capacity, Approx
- 36 gal
- Fuel Tank Capacity, Approx
- 16,000 lbs
- Gross Combined Wt Rating
- 5,000 lbs
- Dead Weight Hitch - Max Trailer Wt.
- Standard
- Stability Control
- 125
- Maximum Alternator Capacity (amps)
- 600
- Cold Cranking Amps @ 0° F (Primary)
- Not Available
- Drum - Rear (Yes or )
- 14.17 x 1.34 in
- Rear Brake Rotor Diam x Thickness
- 13.8 x 1.57 in
- Front Brake Rotor Diam x Thickness
- Yes
- Disc - Rear (Yes or )
Notable features
New bi-fuel 2500HD can run on gasoline or CNG
New available spray-on bedliner
New standard 4.10 axle ratio on gas models
Gas or turbo-diesel V-8 engine
Luxurious Denali trim level offered
Single or dual rear wheels on 3500HD
Engine
380 @ 4200 SAE Net Torque @ RPM
360 @ 5400 SAE Net Horsepower @ RPM
6.0L/366 Displacement
Gas/Ethanol V8 Engine Type
Suspension
Semi Floating Axle Type - Rear
Independent Axle Type - Front
Multi-Leaf Suspension Type - Rear
Independent Suspension Type - Front
Weight & Capacity
Not Available gal Aux Fuel Tank Capacity, Approx
36 gal Fuel Tank Capacity, Approx
16,000 lbs Gross Combined Wt Rating
5,000 lbs Dead Weight Hitch - Max Trailer Wt.
500 lbs Dead Weight Hitch - Max Tongue Wt.
10,200 lbs Wt Distributing Hitch - Max Trailer Wt.
1,530 lbs Wt Distributing Hitch - Max Tongue Wt.
10,200 lbs Fifth Wheel Hitch - Max Trailer Wt.
2,550 lbs Fifth Wheel Hitch - Max Tongue Wt.
17,800 lbs Maximum Trailering Capacity
N/A Base Curb Weight
3,169 lbs Curb Weight - Front
2,461 lbs Curb Weight - Rear
0 lbs Option Weight - Front
0 lbs Option Weight - Rear
5,630 lbs As Spec'd Curb Weight
3,670 lbs As Spec'd Payload
3,670 lbs Maximum Payload Capacity
9,300 lbs Gross Vehicle Weight Rating
0 lbs Total Option Weight
5,630 lbs Curb Weight
10,600 lbs Gross Axle Weight Rating
Safety
Standard Stability Control
Electrical
125 Maximum Alternator Capacity (amps)
600 Cold Cranking Amps @ 0° F (Primary)
Brakes
Not Available Drum - Rear (Yes or )
14.17 x 1.34 in Rear Brake Rotor Diam x Thickness
13.8 x 1.57 in Front Brake Rotor Diam x Thickness
Yes Disc - Rear (Yes or )
Yes Disc - Front (Yes or )
Not Available Brake ABS System (Second Line)
4-Wheel Brake ABS System
Pwr Brake Type
Photo & video gallery















Factory warranties
New car program benefits
Basic
3 years / 36,000 miles
Corrosion
3 years / 36,000 miles
Powertrain
5 years / 100,000 miles
Maintenance
2 years / 24,000 miles
Roadside Assistance
5 years / 100,000 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
Overall range of power, looks, utility and comfort
Excellent towing manners, plenty of pulling power
Standard trailer-sway control and hill-start assist
The bad
Manual transmission not offered
Interior fit and finish
Most recent
Very meh
Went from a ford to this gmc, regretted it everyday since. Underpowered for a diesel. the only good thing is it rides more like an suv then a big truck
- Purchased a Used car
- Used for Towing
- Does not recommend this car
Love the truck. Unhappy with the manufacturer
I bought the diesel brand new. I could smell antifreeze in the front after a week.
The dealership could not find a problem. After 32000 miles I had a low coolant alarm. After 4 days and some help from the internet the dealer found the leak at the bottom of the radiator.
GM was generous enough to pay about $300 of a $750 bill
- Purchased a New car
- Used for Transporting family
- Does not recommend this car
Safety review
Based on the 2014 GMC Sierra 2500 base trim
NHTSA crash test and rollover ratings, scored out of 5.
- Overall rating
-
2/5
- Combined side rating front seat
-
2/5
- Frontal barrier crash rating driver
-
2/5
- Frontal barrier crash rating passenger
-
2/5
- Overall frontal barrier crash rating
-
2/5
- Overall side crash rating
-
2/5
- Rollover rating
-
3/5
- Side barrier rating
-
5/5
- Side barrier rating driver
-
5/5
- Side pole rating driver front seat
-
1/5
20.4%
Risk of rollover
- Side pole rating driver front seat
-
1/5
20.4%
Risk of rollover
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GMC Sierra 2500 history
-
2025 GMC Sierra 2500 -
2024 GMC Sierra 2500 -
2023 GMC Sierra 2500 -
2022 GMC Sierra 2500 -
2021 GMC Sierra 2500 -
2020 GMC Sierra 2500 -
2019 GMC Sierra 2500 -
2018 GMC Sierra 2500
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