2013 GMC Sierra 3500HD Extended Cab Pictures & Photo Gallery | Edmunds.com

2013 GMC Sierra 3500HD Extended Cab Pictures

2012 GMC Sierra 3500HD Optional 6.6L Diesel V8 Engine
2013 GMC Sierra 3500HD 2012 GMC Sierra 3500HD Optional 6.6L Diesel V8 Engine (General Motors Corporation )