Dimensions of the GMC Sierra - Generation 4 (2015-2019)

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On this page, you will find the general dimensions of the GMC Sierra 3500 HD generation 4 (2015-to ), including cargo box dimensions. This page won't display all dimensions. If you are looking for the exact dimensions of a specific cab style, please select one below. First, let's make sure we have the right truck in front of you:

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Production years: 2015 - 2019 Generation: 4 Type of van: pickup Body styles: Regular Cab Crew Cab Also called: GMC Sierra Chevrolet Cheyenne VIA Vtrux Truck Chevrolet Silverado LD

Dimensions in tables

Sierra truck bed dimensions

Bodystyle Crew Cab
Standard Box (6'6")
Crew Cab
Long Box (8')
Regular Cab
Long Box (8')
Volume (cu. ft.) 60.7 75.5 75.5
Length at floor 78.8 97.8 97.8
Inside height 21 21 21
Width at wheelhouse 50.6 50.6 50.6
Maximum width at floor 62.4 62.4 62.4

Wheelbase of the Sierra:

Bodystyle Length (inch)
Crew Cab - Standard Box (6'6") 153.7
Crew Cab - Long Box (8') 167.7
Regular Cab - Long Box (8') 133.7

This model comes in 2 body styles

There are 2 bodystyles for this Sierra 3500 HD in our database. For exact dimensions, please click on one below:

Most truck models come in different body styles. The Sierra 4 3500 HD comes in 2 body styles. Typically the dimensions of different bodystyles differ slightly. The dimensions will greatly overlap, so this page will be helpful to get a general sense of sizing. You can click through to more detailed dimension pages per cab style.

Body styles generally have different cab styles, with the most common ones being the regular cab (two-door), extended cab (more space behind seats), and crew cab (four-door). Manufacturers also offer different trim types, although these will generally not affect dimensions so we don't always list them here.

GMC Sierra Crew Cab

Check the dimensions of the Crew Cab

GMC Sierra Regular Cab

Check the dimensions of the Regular Cab

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