On this page, you will find the general dimensions of the RAM 3500 HD 3500 HD generation 4 (2009-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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Dimensions in tables

3500 HD truck bed dimensions

Bodystyle	Crew Cab Standard Box (6'4")	Crew Cab Long Box (8')	Regular Cab Long Box (8')	Mega Cab Standard Box (6'4")
Volume (cu. ft.)
Length at floor
Inside height
Width at wheelhouse	51	51	51	51
Maximum width at floor

Wheelbase of the 3500 HD:

Bodystyle	Length (inch)
Crew Cab - Standard Box (6'4")	149.1
Crew Cab - Long Box (8')	169.1
Regular Cab - Long Box (8')	140.2
Mega Cab - Standard Box (6'4")	160.2

This model comes in 3 body styles

There are 3 bodystyles for this 3500 HD 3500 HD in our database. For exact dimensions, please click on one below:

• Crew Cab
• Regular Cab
• Mega Cab

Most truck models come in different body styles. The RAM 4 3500 HD comes in 3 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.

RAM 3500 HD Crew Cab

Check the dimensions of the Crew Cab

RAM 3500 HD Regular Cab

Check the dimensions of the Regular Cab

RAM 3500 HD Mega Cab

Check the dimensions of the Mega Cab