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Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 2013 GMC Sierra 3500 HD Denali.
Pace Edwards
Part # JEC5569
$1701.43
Pace Edwards
Part # SMC0303
$1871.36
Go Rhino
Part # 685404987T
$614.98
Dee Zee
Part # DZ16121
$313.00
Extang
Part # 93650
$469.99
Access
Part # 32299
$510.00
BAK
Part # 80102
$1449.99
BackRack
Part # 80519
$429.99
Go Rhino
Part # 9009560DDB
$1774.95
Go Rhino
Part # 6863404987T
$469.18
Go Rhino
Part # 660187T
$544.99
Husky Liners
Part # 2874073
$249.99
Go Rhino
Part # 684404987PS
$429.98
BAK
Part # 226102
$1099.99
Access
Part # 92299
$498.95
Access
Part # H4020059
$388.45
Go Rhino
Part # 6862404987PS
$779.98
N-Fab
Part # GFC11CC-TX
$604.67
Go Rhino
Part # 9009560SSB
$744.98
Truxedo
Part # 1118360
$279.99
This page groups parts listed for the 2013 GMC Sierra 3500 HD Denali. Some products fit every trim, while others depend on submodel, engine, drivetrain, or brake package. Use your trim in My Garage or the product page fitment check to confirm exact fit.
We offer a wide selection of exterior accessories parts for the 2013 GMC Sierra 3500 HD Denali. This page narrows the catalog to the year, make, and model; use your trim on product pages to confirm exact fit when a part only fits certain submodels.
We carry parts from trusted brands including Westin, Go Rhino, Dee Zee, LUND, and Access, plus many more. Filter by brand to find your preferred manufacturer.
Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.
Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.
