2020 GMC Sierra 2500HD V (GMTT1XX) Regular Cab Long Bed: Side profile of a heavy-duty pickup with extended cab and long bed

Side view of a heavy-duty pickup truck featuring an extended regular cab, long cargo bed, large off-road tires, tow mirrors, and distinct diesel engine badging.

View Dimensions of the 2020 GMC Sierra 2500HD V (GMTT1XX) Regular Cab Long Bed

View 25 images of the 2020 GMC Sierra 2500HD V (GMTT1XX) Regular Cab Long Bed

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