2011-2016 GM 2500HD/3500HD 6.6L LM Duramax Exterior Upgrades

2011-2016 6.6L Silverado & Sierra 2500HD/3500HD

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Bed Liners

Bed Liners

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Bed Racks

Bed Racks

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Bull Bars

Bull Bars

2011-2016 GM 2500HD/3500HD 6.6L LM Duramax Bumpers

Bumpers

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Fender Flares

Fender Flares

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Grilles & Grille Guards

Grilles & Grille Guards

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Mud Flaps

Mud Flaps

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Roof Racks

Roof Racks

2011-2016 GM 2500HD/3500HD 6.6L LML Duramax Side Steps

Side Steps

2011-2016 GM 2500HD/3500HD 6.6L LM Duramax Tonneau Covers

Tonneau Covers

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Bushwacker 40133-02 Pocket Style Front Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40133-02 Pocket Style Front Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40133-02 Pocket Style Front Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40133-02 Pocket Style Front Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD

Bushwacker

Bushwacker 40133-02 Pocket Style Front Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD

SKU: BWK40133-02
$349.99
Bushwacker 40159-02 DRT Style Front Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40159-02 DRT Style Front Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40159-02 DRT Style Front Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40159-02 DRT Style Front Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40159-02 DRT Style Front Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

Bushwacker

Bushwacker 40159-02 DRT Style Front Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

SKU: BWK40159-02
$354.37
Bushwacker 40978-02 Max Coverage Pocket Style Front & Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40978-02 Max Coverage Pocket Style Front & Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40978-02 Max Coverage Pocket Style Front & Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

Bushwacker

Bushwacker 40978-02 Max Coverage Pocket Style Front & Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

SKU: BWK40978-02
$599.99
Bushwacker 40964-02 Front & Rear Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40964-02 Front & Rear Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40964-02 Front & Rear Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40964-02 Front & Rear Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40964-02 Front & Rear Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

Bushwacker

Bushwacker 40964-02 Front & Rear Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

SKU: BWK40964-02
$699.99
Bushwacker 40128-02 Rear Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40128-02 Rear Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40128-02 Rear Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40128-02 Rear Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40128-02 Rear Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

Bushwacker

Bushwacker 40128-02 Rear Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

SKU: BWK40128-02
$429.99
Bushwacker 40125-02 Front Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40125-02 Front Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40125-02 Front Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40125-02 Front Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40125-02 Front Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

Bushwacker

Bushwacker 40125-02 Front Extend-A-Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

SKU: BWK40125-02
$429.99
Bushwacker 40956-02 OE Style Front & Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40956-02 OE Style Front & Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40956-02 OE Style Front & Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40956-02 OE Style Front & Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40956-02 OE Style Front & Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

Bushwacker

Bushwacker 40956-02 OE Style Front & Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

SKU: BWK40956-02
$699.99
Bushwacker 40116-02 Pocket Style Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40116-02 Pocket Style Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40116-02 Pocket Style Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40116-02 Pocket Style Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40116-02 Pocket Style Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

Bushwacker

Bushwacker 40116-02 Pocket Style Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

SKU: BWK40116-02
$349.99
Bushwacker 40119-02 Pocket Style Front Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40119-02 Pocket Style Front Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40119-02 Pocket Style Front Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 40119-02 Pocket Style Front Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

Bushwacker

Bushwacker 40119-02 Pocket Style Front Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

SKU: BWK40119-02
$349.99
Bushwacker 48111-08 Forge Style Front & Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 48111-08 Forge Style Front & Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 48111-08 Forge Style Front & Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 48111-08 Forge Style Front & Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD
Bushwacker 48111-08 Forge Style Front & Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

Bushwacker

Bushwacker 48111-08 Forge Style Front & Rear Fender Flares | 2015-2019 Silverado 1500/2500HD/3500HD

SKU: BWK48111-08
$449.99
Rhino Rack JA6356 Heavy Duty 2500HD Black 2-Bar Roof Rack | 2015-2019 GM Silverado/Sierra 2500HD/3500HD
Rhino Rack JA6356 Heavy Duty 2500HD Black 2-Bar Roof Rack | 2015-2019 GM Silverado/Sierra 2500HD/3500HD

Rhino Rack

Rhino Rack JA6356 Heavy Duty 2500HD Black 2-Bar Roof Rack | 2015-2019 GM Silverado/Sierra 2500HD/3500HD

SKU: RRUJA6356
$584.96
Rhino Rack JA6354 Vortex 2500HD Black 2-Bar Roof Rack | 2015-2019 GM Silverado/Sierra 2500HD/3500HD
Rhino Rack JA6354 Vortex 2500HD Black 2-Bar Roof Rack | 2015-2019 GM Silverado/Sierra 2500HD/3500HD

Rhino Rack

Rhino Rack JA6354 Vortex 2500HD Black 2-Bar Roof Rack | 2015-2019 GM Silverado/Sierra 2500HD/3500HD

SKU: RRUJA6354
$604.96
Wehrli 100369-FTB Lower Valance Filler Panel w/o ut Tow Hook Cutouts -Fine Textured Black | 2011-2014 Silverado 2500HD/3500HD
Wehrli 100369-FTB Lower Valance Filler Panel w/o ut Tow Hook Cutouts -Fine Textured Black | 2011-2014 Silverado 2500HD/3500HD
Wehrli 100369-FTB Lower Valance Filler Panel w/o ut Tow Hook Cutouts -Fine Textured Black | 2011-2014 Silverado 2500HD/3500HD
Wehrli 100369-FTB Lower Valance Filler Panel w/o ut Tow Hook Cutouts -Fine Textured Black | 2011-2014 Silverado 2500HD/3500HD
Wehrli 100369-FTB Lower Valance Filler Panel w/o ut Tow Hook Cutouts -Fine Textured Black | 2011-2014 Silverado 2500HD/3500HD

Wehrli Custom Fab

Wehrli 100369-FTB Lower Valance Filler Panel w/o ut Tow Hook Cutouts -Fine Textured Black | 2011-2014 Silverado 2500HD/3500HD

SKU: WCF100369-FTB
$257.05
Wehrli 100368-FTB Lower Valance Filler Panel with Tow Hook Cutouts -Fine Textured Black | 2011-2014 Silverado 2500HD/3500HD
Wehrli 100368-FTB Lower Valance Filler Panel with Tow Hook Cutouts -Fine Textured Black | 2011-2014 Silverado 2500HD/3500HD
Wehrli 100368-FTB Lower Valance Filler Panel with Tow Hook Cutouts -Fine Textured Black | 2011-2014 Silverado 2500HD/3500HD
Wehrli 100368-FTB Lower Valance Filler Panel with Tow Hook Cutouts -Fine Textured Black | 2011-2014 Silverado 2500HD/3500HD
Wehrli 100368-FTB Lower Valance Filler Panel with Tow Hook Cutouts -Fine Textured Black | 2011-2014 Silverado 2500HD/3500HD

Wehrli Custom Fab

Wehrli 100368-FTB Lower Valance Filler Panel with Tow Hook Cutouts -Fine Textured Black | 2011-2014 Silverado 2500HD/3500HD

SKU: WCF100368-FTB
$257.05
Wehrli 100285 Bumper Grille | 2011-2014 Silverado 2500HD/3500HD
Wehrli 100285 Bumper Grille | 2011-2014 Silverado 2500HD/3500HD
Wehrli 100285 Bumper Grille | 2011-2014 Silverado 2500HD/3500HD
Wehrli 100285 Bumper Grille | 2011-2014 Silverado 2500HD/3500HD
Wehrli 100285 Bumper Grille | 2011-2014 Silverado 2500HD/3500HD

Wehrli Custom Fab

Wehrli 100285 Bumper Grille | 2011-2014 Silverado 2500HD/3500HD

SKU: WCF100285
$140.65
Husky 56886 Front and Rear Mud Guard Set | 2014-2018 GM Silverado/Sierra 1500/2500HD/3500HD
Husky 56886 Front and Rear Mud Guard Set | 2014-2018 GM Silverado/Sierra 1500/2500HD/3500HD
Husky 56886 Front and Rear Mud Guard Set | 2014-2018 GM Silverado/Sierra 1500/2500HD/3500HD
Husky 56886 Front and Rear Mud Guard Set | 2014-2018 GM Silverado/Sierra 1500/2500HD/3500HD

Husky Liners

Husky 56886 Front and Rear Mud Guard Set | 2014-2018 GM Silverado/Sierra 1500/2500HD/3500HD

SKU: HUS56886
$107.99
$119.99
T-Rex 25211B Billet Lower Bumper Grill | 2015-2019 Sierra 2500HD/3500HD
T-Rex 25211B Billet Lower Bumper Grill | 2015-2019 Sierra 2500HD/3500HD
T-Rex 25211B Billet Lower Bumper Grill | 2015-2019 Sierra 2500HD/3500HD

T-Rex Grilles

T-Rex 25211B Billet Lower Bumper Grill | 2015-2019 Sierra 2500HD/3500HD

SKU: TRX25211B
$119.50
Rugged Liner WWC011HD Series Rear Wheel Well Liner | 2011-2014 GM Silverado 2500HD/3500HD w/ Single Rear Wheels w/o 5th Wheel Package
Rugged Liner WWC011HD Series Rear Wheel Well Liner | 2011-2014 GM Silverado 2500HD/3500HD w/ Single Rear Wheels w/o 5th Wheel Package

Rugged Liner

Rugged Liner WWC011HD Series Rear Wheel Well Liner | 2011-2014 GM Silverado 2500HD/3500HD w/ Single Rear Wheels w/o 5th Wheel Package

SKU: RUGWWC011HD
$139
AMP Research 77154-01A PowerStep XL | 2015-2019 GM Silverado/Sierra 2500HD/3500HD
AMP Research 77154-01A PowerStep XL | 2015-2019 GM Silverado/Sierra 2500HD/3500HD
AMP Research 77154-01A PowerStep XL | 2015-2019 GM Silverado/Sierra 2500HD/3500HD
AMP Research 77154-01A PowerStep XL | 2015-2019 GM Silverado/Sierra 2500HD/3500HD
AMP Research 77154-01A PowerStep XL | 2015-2019 GM Silverado/Sierra 2500HD/3500HD

AMP Research

AMP Research 77154-01A PowerStep XL | 2015-2019 GM Silverado/Sierra 2500HD/3500HD

SKU: AMP77154-01A
$2,299.99
AMP Research 76147-01A Power Step | 2015-2016 GM Silverado/Sierra 2500HD/3500HD
AMP Research 76147-01A Power Step | 2015-2016 GM Silverado/Sierra 2500HD/3500HD
AMP Research 76147-01A Power Step | 2015-2016 GM Silverado/Sierra 2500HD/3500HD

AMP Research

AMP Research 76147-01A Power Step | 2015-2016 GM Silverado/Sierra 2500HD/3500HD

SKU: AMP76147-01A
$1,799.99
AMP Research 75308-01A Bed Step |11 GM Silverado/Sierra 2500HD/3500HD
AMP Research 75308-01A Bed Step |11 GM Silverado/Sierra 2500HD/3500HD

AMP Research

AMP Research 75308-01A Bed Step |11 GM Silverado/Sierra 2500HD/3500HD

SKU: AMP75308-01A
$329.99
AMP Research 75146-01A Power Step | 2011-2014 GM Silverado/Sierra 2500HD/3500HD
AMP Research 75146-01A Power Step | 2011-2014 GM Silverado/Sierra 2500HD/3500HD

AMP Research

AMP Research 75146-01A Power Step | 2011-2014 GM Silverado/Sierra 2500HD/3500HD

SKU: AMP75146-01A
$1,649.99
Bushwacker 40957-54 Silver Ice Metallic Front & Rear Fender Flares | 2014-2016 Silverado 1500/2500HD/3500HD
Bushwacker 40957-54 Silver Ice Metallic Front & Rear Fender Flares | 2014-2016 Silverado 1500/2500HD/3500HD

Bushwacker

Bushwacker 40957-54 Silver Ice Metallic Front & Rear Fender Flares | 2014-2016 Silverado 1500/2500HD/3500HD

SKU: BWK40957-54
$799
Bushwacker 40957-34 Gloss Black Front & Rear Fender Flares | 2014-2016 Silverado 1500/2500HD/3500HD
Bushwacker 40957-34 Gloss Black Front & Rear Fender Flares | 2014-2016 Silverado 1500/2500HD/3500HD

Bushwacker

Bushwacker 40957-34 Gloss Black Front & Rear Fender Flares | 2014-2016 Silverado 1500/2500HD/3500HD

SKU: BWK40957-34
$899.99

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2011-2016 6.6L Silverado & Sierra 2500HD/3500HD

Power Lift Shop All

Once you've slapped on tons of power and performance to your 2011-2016 GM 6.6L Duramax LML, it's time to upgrade it's exterior to seriously set your truck apart from the rest. You can give your GM 2500/3500 it's own custom style and appeal with any of the premium exterior parts and upgrades offered here at Alligator Performance. We carry various accessories like aftermarket side steps, fender flares, grilles, mud flaps, roof racks and more so you can outfit your rig with some of the best looking and most aggressive upgrades on the market. You can shop and drive with confidence knowing we only work with the most trusted and reliable names in the business. Once you've finished outfitting your exterior, head over and check out our selection of GM 2500/3500 Wheels & Tires to complete your custom build! GM Duramax Fitments: 2011, 2012, 2013, 2014, 2015, 2016 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.

GM Duramax>2011-2016 6.6L LML
Side Steps
Fender Flares
Grilles
Mud Flaps
Roof Racks

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Welcome to The Garage – your one-stop shop for all your car care and maintenance needs. From premium oils and filters to top-notch car care products, we have everything you need to keep your vehicle running smoothly and looking its best. Whether you're a DIY enthusiast or a professional mechanic, our carefully curated selection of high-quality products will help you take care of your ride like never before.

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