2023 GMC Sierra 2500HD Exterior and Dimensions

GMC Sierra 2500HD Exterior Design Rating

2023 Sierra 2500HD Exterior

If the sheer size of the GMC Sierra 2500HD does not impress you, its bold fascia and beefy bodywork will. Looking at the competition, the Ram 2500 has a more controversial face, while the Chevy Silverado 2500HD is possibly the most aggressive of the bunch. Exterior features on the base Pro trim are sparse but include 17-inch steel wheels and LED daytime running lights. The SLE gets 17-inch alloy wheels and the multi-function MultiPro tailgate with EZ Lift assistance. Higher up in the range, the SLT gains 18-inch alloy wheels and LED cargo-bed lighting, while the Denali rolls on 20-inch polished alloys. The AT4 features high gloss black mirror caps, and the Denali gets a polished exhaust tip, assist steps, and smoked amber LED roof marker lamps, amongst others.

2023 Sierra 2500HD Exterior Photos

2023 GMC Sierra 2500HD Front View CarBuzz 2023 GMC Sierra 2500HD Aft View CarBuzz 2023 GMC Sierra 2500HD Frontal Aspect CarBuzz
2023 GMC Sierra 2500HD Front View
2023 GMC Sierra 2500HD Aft View
2023 GMC Sierra 2500HD Frontal Aspect


The Sierra 2500HD is a big vehicle in any configuration. The smallest of the bunch is the Regular Cab with the long bed, which measures at 235.5 inches in length. The longest is the Crew Cab with a long bed, which measures 266.09 inches in length. The overall width of this truck ranges between 81.75 and 81.85 inches, while the overall height varies between 79.65 and 79.82 inches, depending on the model.

The front track on all models is 68.1 inches while the rear track is 68.3 inches. Max ground clearance is just over ten inches. The lightest truck on offer is the gas-powered Regular Cab with a curb weight of 6,105 pounds. On the other side of the spectrum, the Crew Cab with the diesel engine, 4WD, and the long bed weighs as much as 7,886 lbs.

2023 GMC Sierra 2500HD Exterior Dimensions:

GMC Sierra 2500HD TrimsProSLESLTAT4Denali
Max Width81.75 in.81.75 in.81.85 in.81.85 in.81.85 in.
Length235.5 in.235.5 in.240.45 in.250.08 in.250.08 in.
Height79.65 in.79.65 in.79.65 in.79.65 in.79.65 in.
Wheelbase141.55 in.141.55 in.149.4 in.158.94 in.158.94 in.

2023 GMC Sierra 2500HD Tires:

Front TireLT245/75R17E
Rear TireLT245/75R17E
Spare TireLT245/75R17E

2023 GMC Sierra 2500HD Wheels:

Wheels TypeAluminum Wheels
Front Wheel Size17" x TBD
Rear Wheel Size17" x TBD

Exterior Colors

A big and bold truck deserves a big and bold color palette, and GMC does not disappoint in this regard. The base model can be finished in your choice of six colors, with Summit White being the only no-cost option. The other five colors on offer cost $495 each and include Cardinal Red, Onyx Black, Pacific Blue Metallic, and Quicksilver Metallic, as well as Forest Metallic - a new color. Last year's Brownstone Metallic has been discontinued. The SLE adds Ebony Twilight Metallic and Cayenne Red Tintcoat, the latter being a pricier $645. The SLT can be painted with a White Frost Tricoat for an additional $1,095, though the AT4 doesn't get the same options; it's only available in Summit White, Onyx Black, Pacific Blue, Forest, Ebony Twilight, and Cayenne Red. The Denali gets exclusive access to Hunter Metallic, which carries a $495 charge. However, this model loses the Brownstone shade - and last year's Carbon Black Metallic is not available on the Denali trim anymore at all.

To Top