Looking for aftermarket parts to modify or upgrade your GMC Sierra 3500 HD with tonneau covers - hard fold? At Tunersports.com we carry a huge selection of the top name brand performance tonneau covers - hard fold parts and accessories for your Sierra 3500 HD.
Whether you have a 2007 or 2024 GMC Sierra 3500 HD in AT4 to WT trim we have you covered. We have 44 tonneau covers - hard fold available to mod your Sierra 3500 HD. All parts have free shipping to the Continental US 48 States.
 SHIPS FROM MANUFACTURER B2020039LOMAX(TM) Hard Tri-Fold Cover delivers a bold look, taking your truck to new heights. The textured matte black finish and ultra low profile design merge flawlessly with your pickup for a sleek appearance. From the simple install and removal to the strategically placed weather seals, the LOMAX(TM) Ha... Access LOMAX Diamond Plate 15-19 Chevy/GMC Full Size 2500/3500 6ft 6in Box 2015-2019 GMC Sierra 3500 HD Base / Denali / SLE / SLT $1,074.40 |
SHIPS FROM MANUFACTURER B2020069LOMAX(TM) Hard Tri-Fold Cover delivers a bold look, taking your truck to new heights. The textured matte black finish and ultra low profile design merge flawlessly with your pickup for a sleek appearance. From the simple install and removal to the strategically placed weather seals, the LOMAX(TM) Ha... Access LOMAX Diamond Plate 07-13 Chevy/GMC Full Size 1500 6ft 6in Box 2007-2014 GMC Sierra 3500 HD SLE / SLT / WT 2011-2014 GMC Sierra 3500 HD Denali $1,074.40 |
 SHIPS FROM MANUFACTURER B0020039With a low profile you crave and the security you require, the LOMAX(TM) Professional Series is reinventing how a hard cover should be. From easy operation to the water shedding design, the cutting-edge performance of LOMAX(TM) Professional Series prevails. A classic diamond plate finish and addit... Access LOMAX Pro Series TriFold Cover 15-19 Chevy 2500/3500 Full Size 6ft 6in Bed - Blk Diamond Mist 2015-2019 GMC Sierra 3500 HD Base / Denali / SLE / SLT $1,297.10 |
SHIPS FROM MANUFACTURER B0020069With a low profile you crave and the security you require, the LOMAX(TM) Professional Series is reinventing how a hard cover should be. From easy operation to the water shedding design, the cutting-edge performance of LOMAX(TM) Professional Series prevails. A classic diamond plate finish and addit... Access LOMAX Pro Series Tri-Fold Cover 07-13 Chevy/GMC 1500 6ft 6in Bed - Blk Diamond Mist 2007-2014 GMC Sierra 3500 HD SLE / SLT / WT 2011-2014 GMC Sierra 3500 HD Denali $1,297.10 |
SHIPS FROM MANUFACTURER B0020099With a low profile you crave and the security you require, the LOMAX(TM) Professional Series is reinventing how a hard cover should be. From easy operation to the water shedding design, the cutting-edge performance of LOMAX(TM) Professional Series prevails. A classic diamond plate finish and addit... Access LOMAX Pro Series Tri-Fold Cover 2020+ Chevy/GMC 2500 3500 6ft 8in Bed-Black Diamond Mist 2020-2021 GMC Sierra 3500 HD Base 2020-2023 GMC Sierra 3500 HD AT4 / Denali / SLE / SLT 2022-2023 GMC Sierra 3500 HD Pro $1,297.10 |
 IN STOCK - LOW 772101The BAKFlip F1 hard folding truck bed cover comes equipped with an FRP (Fiberglass Reinforced Polymer) top surface, providing superior dent, ding and scratch resistance. The heavy-duty aluminum panels that line the underside give the cover its strength and durability. Together, these make the F1 our... BAK 88-13 Chevy Silverado & C/K 1500 / 88-14 Chevy Silverado 2500/3500 HD 6ft 6in Bed BAKFlip F1 2013-2014 GMC Sierra 3500 HD Denali / SLE / SLT / WT $1,249.99 |
SHIPS FROM MANUFACTURER 772121The BAKFlip F1 hard folding truck bed cover comes equipped with an FRP (Fiberglass Reinforced Polymer) top surface, providing superior dent, ding and scratch resistance. The heavy-duty aluminum panels that line the underside give the cover its strength and durability. Together, these make the F1 our... BAK 14-18 Chevy Silverado 1500 / 15-20 Chevy Silverado 2500/3500 6ft 6in Bed BAKFlip F1 2015-2020 GMC Sierra 3500 HD Base / Denali / SLE / SLT $1,249.99 |
SHIPS FROM MANUFACTURER 772122The BAKFlip F1 hard folding truck bed cover comes equipped with an FRP (Fiberglass Reinforced Polymer) top surface, providing superior dent, ding and scratch resistance. The heavy-duty aluminum panels that line the underside give the cover its strength and durability. Together, these make the F1 our... BAK 14-18 Chevy Silverado 1500 / 15-20 Chevy Silverado 2500/3500 8ft Bed BAKFlip F1 2015-2020 GMC Sierra 3500 HD Base / Denali / SLE / SLT $1,299.99 |
IN STOCK 772133The BAKFlip F1 hard folding truck bed cover comes equipped with an FRP (Fiberglass Reinforced Polymer) top surface, providing superior dent, ding and scratch resistance. The heavy-duty aluminum panels that line the underside give the cover its strength and durability. Together, these make the F1 our... BAK 2020 Chevy Silverado 2500/3500 HD 6ft 9in Bed BAKFlip F1 2020-2021 GMC Sierra 3500 HD Base 2020-2023 GMC Sierra 3500 HD Denali / SLE / SLT 2022-2023 GMC Sierra 3500 HD Pro $1,249.99 |
SHIPS FROM MANUFACTURER 772134The BAKFlip F1 hard folding truck bed cover comes equipped with an FRP (Fiberglass Reinforced Polymer) top surface, providing superior dent, ding and scratch resistance. The heavy-duty aluminum panels that line the underside give the cover its strength and durability. Together, these make the F1 our... BAK 2020 Chevy Silverado 2500/3500 HD 8ft Bed BAKFlip F1 2020-2021 GMC Sierra 3500 HD Base 2020-2023 GMC Sierra 3500 HD Denali / SLE / SLT 2022-2023 GMC Sierra 3500 HD Pro $1,299.99 |
 SHIPS FROM MANUFACTURER 1126101The BAKFlip FiberMax is an aluminum hard folding truck bed cover with an FRP (Fiberglass Reinforced Polymer) surface, making the cover dent, scuff and ding resistant, as well as cooler to the touch. Its tough aluminum substructure, robust hinge design and patented slam latch system make the FiberMax... BAK 88-13 Chevy Silverado / 88-14 Chevy Silverado 2500/3500 HD 6ft 6in Bed BAKFlip FiberMax 2013-2014 GMC Sierra 3500 HD Denali / SLE / SLT / WT $1,149.99 |
SHIPS FROM MANUFACTURER 1126121The BAKFlip FiberMax is an aluminum hard folding truck bed cover with an FRP (Fiberglass Reinforced Polymer) surface, making the cover dent, scuff and ding resistant, as well as cooler to the touch. Its tough aluminum substructure, robust hinge design and patented slam latch system make the FiberMax... BAK 14-18 Chevy Silverado 1500 / 15-20 Chevy Silverado 2500/3500 6ft 6in Bed BAKFlip FiberMax 2015-2020 GMC Sierra 3500 HD Base / Denali / SLE / SLT $1,149.99 |
SHIPS FROM MANUFACTURER 1126122The BAKFlip FiberMax is an aluminum hard folding truck bed cover with an FRP (Fiberglass Reinforced Polymer) surface, making the cover dent, scuff and ding resistant, as well as cooler to the touch. Its tough aluminum substructure, robust hinge design and patented slam latch system make the FiberMax... BAK 14-18 Chevy Silverado 1500 / 15-20 Chevy Silverado 2500/3500 8ft Bed BAKFlip FiberMax 2015-2020 GMC Sierra 3500 HD Base / Denali / SLE / SLT $1,199.99 |
SHIPS FROM MANUFACTURER 1126133The BAKFlip FiberMax is an aluminum hard folding truck bed cover with an FRP (Fiberglass Reinforced Polymer) surface, making the cover dent, scuff and ding resistant, as well as cooler to the touch. Its tough aluminum substructure, robust hinge design and patented slam latch system make the FiberMax... BAK 2020 Chevy Silverado 2500/3500 HD 6ft 9in Bed BAKFlip FiberMax 2020-2021 GMC Sierra 3500 HD Base 2020-2023 GMC Sierra 3500 HD Denali / SLE / SLT 2022-2023 GMC Sierra 3500 HD Pro $1,149.99 |
SHIPS FROM MANUFACTURER 1126134The BAKFlip FiberMax is an aluminum hard folding truck bed cover with an FRP (Fiberglass Reinforced Polymer) surface, making the cover dent, scuff and ding resistant, as well as cooler to the touch. Its tough aluminum substructure, robust hinge design and patented slam latch system make the FiberMax... BAK 2020 Chevy Silverado 2500/3500 HD 8ft Bed BAKFlip FiberMax 2020-2021 GMC Sierra 3500 HD Base 2020-2023 GMC Sierra 3500 HD Denali / SLE / SLT 2022-2023 GMC Sierra 3500 HD Pro $1,199.99 |
 IN STOCK 226101The BAKFlip G2 hard folding truck bed cover is the smartest investment when your job calls for a cover that offers full bed access when you need it, and maximum theft protection when you don't. The all-new integrated buckle system allows you to drive with your cover folded, flipped up or closed. Our... BAK 88-13 Chevy Silverado & C/K 1500 / 88-14 Chevy Silverado 2500/3500 HD 6ft 6in Bed BAKFlip G2 2013-2014 GMC Sierra 3500 HD Denali / SLE / SLT / WT $1,099.99 |
IN STOCK - LOW 226102The BAKFlip G2 hard folding truck bed cover is the smartest investment when your job calls for a cover that offers full bed access when you need it, and maximum theft protection when you don't. The all-new integrated buckle system allows you to drive with your cover folded, flipped up or closed. Our... BAK 88-14 Chevy Silverado & C/K 8ft Bed (2014 HD / 2500 / 3500) BAKFlip G2 2007-2007 GMC Sierra 3500 HD SLE / SLT / WT 2009-2014 GMC Sierra 3500 HD SLE / SLT / WT 2011-2014 GMC Sierra 3500 HD Denali $1,099.99 |
IN STOCK 226121The BAKFlip G2 hard folding truck bed cover is the smartest investment when your job calls for a cover that offers full bed access when you need it, and maximum theft protection when you don't. The all-new integrated buckle system allows you to drive with your cover folded, flipped up or closed. Our... BAK 14-18 Chevy Silverado 1500 / 15-20 Chevy Silverado 2500/3500 6ft 6in Bed BAKFlip G2 2015-2020 GMC Sierra 3500 HD Base / Denali / SLE / SLT $1,099.99 |
SHIPS FROM MANUFACTURER 226122The BAKFlip G2 hard folding truck bed cover is the smartest investment when your job calls for a cover that offers full bed access when you need it, and maximum theft protection when you don't. The all-new integrated buckle system allows you to drive with your cover folded, flipped up or closed. Our... BAK 14-18 Chevy Silverado 1500 / 15-20 2500/3500 8ft Bed BAKFlip G2 2015-2020 GMC Sierra 3500 HD Base / Denali / SLE / SLT $1,099.99 |
 IN STOCK 226133The BAKFlip G2 hard folding truck bed cover is the smartest investment when your job calls for a cover that offers full bed access when you need it, and maximum theft protection when you don't. The all-new integrated buckle system allows you to drive with your cover folded, flipped up or closed. Our... BAK 2020 Chevy Silverado 2500/3500 HD 6ft 9in Bed BAKFlip G2 2020-2021 GMC Sierra 3500 HD Base 2020-2023 GMC Sierra 3500 HD Denali / SLE / SLT 2022-2023 GMC Sierra 3500 HD Pro $1,099.99 |
SHIPS FROM MANUFACTURER 226134The BAKFlip G2 hard folding truck bed cover is the smartest investment when your job calls for a cover that offers full bed access when you need it, and maximum theft protection when you don't. The all-new integrated buckle system allows you to drive with your cover folded, flipped up or closed. Our... BAK 2020 Chevy Silverado 2500/3500 HD 8ft Bed BAKFlip G2 2020-2021 GMC Sierra 3500 HD Base 2020-2023 GMC Sierra 3500 HD AT4 / Denali / SLE / SLT 2022-2023 GMC Sierra 3500 HD Pro $1,099.99 |
 IN STOCK 448101Introducing the all-new BAKFlip MX4, featuring heavy-duty aluminum matte finish panels that offer superior UV and scratch resistance, and an enhanced premium density foam core. The MX4 is the upgrade to the G2 aluminum series, equipped with upgraded latch housing components, and an all-new integrate... BAK 88-13 C/K / Chevy Silverado 1500 / 88-14 2500/3500 HD 6ft 6in Bed BAKFlip MX4 Matte Finish 2013-2014 GMC Sierra 3500 HD Denali / SLE / SLT / WT $1,199.99 |
IN STOCK 448121Introducing the all-new BAKFlip MX4, featuring heavy-duty aluminum matte finish panels that offer superior UV and scratch resistance, and an enhanced premium density foam core. The MX4 is the upgrade to the G2 aluminum series, equipped with upgraded latch housing components, and an all-new integrate... BAK 14-18 Chevy Silverado 1500 / 15-20 Silverado 2500/3500 6ft 6in Bed BAKFlip MX4 Matte Finish 2015-2020 GMC Sierra 3500 HD Base / Denali / SLE / SLT $1,199.99 |
IN STOCK 448122Introducing the all-new BAKFlip MX4, featuring heavy-duty aluminum matte finish panels that offer superior UV and scratch resistance, and an enhanced premium density foam core. The MX4 is the upgrade to the G2 aluminum series, equipped with upgraded latch housing components, and an all-new integrate... BAK 2014 Chevy Silverado 1500 / 15-20 Chevy Silverado 2500/3500 8ft Bed BAKFlip MX4 Matte Finish 2015-2020 GMC Sierra 3500 HD Base / Denali / SLE / SLT $1,249.99 |
IN STOCK 448133Introducing the all-new BAKFlip MX4, featuring heavy-duty aluminum matte finish panels that offer superior UV and scratch resistance, and an enhanced premium density foam core. The MX4 is the upgrade to the G2 aluminum series, equipped with upgraded latch housing components, and an all-new integrate... BAK 2020 Chevy Silverado 2500/3500 HD 6ft 9in Bed BAKFlip MX4 Matte Finish 2020-2021 GMC Sierra 3500 HD Base 2020-2023 GMC Sierra 3500 HD Denali / SLE / SLT 2022-2023 GMC Sierra 3500 HD Pro $1,199.99 |