2007 GMC Sierra 2500HD III (GMT900) Regular Cab Long Box: Front view of heavy-duty pickup with grille, headlights, and bumper

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Front perspective showing the heavy-duty pickup truck's grille with bold GMC logo, rectangular headlights with amber accents, large side mirrors, and chrome front bumper with round fog lights.

View Dimensions of the 2007 GMC Sierra 2500HD III (GMT900) Regular Cab Long Box

View 38 images of the 2007 GMC Sierra 2500HD III (GMT900) Regular Cab Long Box