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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Rough Country SRB071785 HD2 Cab Length Running Boards | 2007-2018 GM Silverado/Sierra 1500/2500HD/3500HD Crew Cab
Rough Country SRB071785 HD2 Cab Length Running Boards | 2007-2018 GM Silverado/Sierra 1500/2500HD/3500HD Crew Cab
Rough Country SRB071785 HD2 Cab Length Running Boards | 2007-2018 GM Silverado/Sierra 1500/2500HD/3500HD Crew Cab
Rough Country SRB071785 HD2 Cab Length Running Boards | 2007-2018 GM Silverado/Sierra 1500/2500HD/3500HD Crew Cab
Rough Country SRB071785 HD2 Cab Length Running Boards | 2007-2018 GM Silverado/Sierra 1500/2500HD/3500HD Crew Cab

Rough Country

Rough Country SRB071785 HD2 Cab Length Running Boards | 2007-2018 GM Silverado/Sierra 1500/2500HD/3500HD Crew Cab

SKU: RCSSRB071785
$322.95
$379.95
Rough Country SRB071777 HD2 Cab Length Running Boards | 2007-2018 GM Silverado/Sierra 1500/2500HD/3500HD Extended Cab
Rough Country SRB071777 HD2 Cab Length Running Boards | 2007-2018 GM Silverado/Sierra 1500/2500HD/3500HD Extended Cab
Rough Country SRB071777 HD2 Cab Length Running Boards | 2007-2018 GM Silverado/Sierra 1500/2500HD/3500HD Extended Cab
Rough Country SRB071777 HD2 Cab Length Running Boards | 2007-2018 GM Silverado/Sierra 1500/2500HD/3500HD Extended Cab
Rough Country SRB071777 HD2 Cab Length Running Boards | 2007-2018 GM Silverado/Sierra 1500/2500HD/3500HD Extended Cab

Rough Country

Rough Country SRB071777 HD2 Cab Length Running Boards | 2007-2018 GM Silverado/Sierra 1500/2500HD/3500HD Extended Cab

SKU: RCSSRB071777
$322.95
$379.95
Kleinn HK7 Pro Blaster Triple Train Horn Kit with 150PSI 100% Duty Onboard Air System | Universal
Kleinn HK7 Pro Blaster Triple Train Horn Kit with 150PSI 100% Duty Onboard Air System | Universal
Kleinn HK7 Pro Blaster Triple Train Horn Kit with 150PSI 100% Duty Onboard Air System | Universal

Kleinn Automotive Air Horns

Kleinn HK7 Pro Blaster Triple Train Horn Kit with 150PSI 100% Duty Onboard Air System | Universal

SKU: KLNHK7
$839.95
Rhino Rack JA2525 Vortex 2500HD Black 2-Bar Roof Rack | 1999-2014 GM Silverado/Sierra 1500/2500HD/3500HD
Rhino Rack JA2525 Vortex 2500HD Black 2-Bar Roof Rack | 1999-2014 GM Silverado/Sierra 1500/2500HD/3500HD

Rhino Rack

Rhino Rack JA2525 Vortex 2500HD Black 2-Bar Roof Rack | 1999-2014 GM Silverado/Sierra 1500/2500HD/3500HD

SKU: RRUJA2525
$604.96
Rhino Rack JA0190 Heavy Duty 2500HD Black 2-Bar Roof Rack | 1999-2014 GM Silverado/Sierra 1500/2500HD/3500HD
Rhino Rack JA0190 Heavy Duty 2500HD Black 2-Bar Roof Rack | 1999-2014 GM Silverado/Sierra 1500/2500HD/3500HD

Rhino Rack

Rhino Rack JA0190 Heavy Duty 2500HD Black 2-Bar Roof Rack | 1999-2014 GM Silverado/Sierra 1500/2500HD/3500HD

SKU: RRUJA0190
$584.96
Bushwacker 40949-02 Cut-Out Style Front & Rear Fender Flares | 2007.5-2014 Silverado 1500/2500HD/3500HD (Non-Dually) Standard & Long Bed
Bushwacker 40949-02 Cut-Out Style Front & Rear Fender Flares | 2007.5-2014 Silverado 1500/2500HD/3500HD (Non-Dually) Standard & Long Bed
Bushwacker 40949-02 Cut-Out Style Front & Rear Fender Flares | 2007.5-2014 Silverado 1500/2500HD/3500HD (Non-Dually) Standard & Long Bed
Bushwacker 40949-02 Cut-Out Style Front & Rear Fender Flares | 2007.5-2014 Silverado 1500/2500HD/3500HD (Non-Dually) Standard & Long Bed
Bushwacker 40949-02 Cut-Out Style Front & Rear Fender Flares | 2007.5-2014 Silverado 1500/2500HD/3500HD (Non-Dually) Standard & Long Bed

Bushwacker

Bushwacker 40949-02 Cut-Out Style Front & Rear Fender Flares | 2007.5-2014 Silverado 1500/2500HD/3500HD (Non-Dually) Standard & Long Bed

SKU: BWK40949-02
$749.99
Wehrli 100041-FB Billet TIG Torch Stubby Antenna | 2007.5-2019 GM Silverado/Sierra 2500HD/3500HD
Wehrli 100041-FB Billet TIG Torch Stubby Antenna | 2007.5-2019 GM Silverado/Sierra 2500HD/3500HD
Wehrli 100041-FB Billet TIG Torch Stubby Antenna | 2007.5-2019 GM Silverado/Sierra 2500HD/3500HD
Wehrli 100041-FB Billet TIG Torch Stubby Antenna | 2007.5-2019 GM Silverado/Sierra 2500HD/3500HD
Wehrli 100041-FB Billet TIG Torch Stubby Antenna | 2007.5-2019 GM Silverado/Sierra 2500HD/3500HD

Wehrli Custom Fab

Wehrli 100041-FB Billet TIG Torch Stubby Antenna | 2007.5-2019 GM Silverado/Sierra 2500HD/3500HD

SKU: WCF100041-FB-GB
From $59.17
Husky 56796 Front and Rear HD Mud Guard Set | 2007.5-2013 Silverado 1500/2500HD/3500HD
Husky 56796 Front and Rear HD Mud Guard Set | 2007.5-2013 Silverado 1500/2500HD/3500HD
Husky 56796 Front and Rear HD Mud Guard Set | 2007.5-2013 Silverado 1500/2500HD/3500HD

Husky Liners

Husky 56796 Front and Rear HD Mud Guard Set | 2007.5-2013 Silverado 1500/2500HD/3500HD

SKU: HUS56796
$107.99
$119.99
Husky 57891 Rear Mud Guards | 2014-2019 Sierra 1500/2500HD/3500HD
Husky 57891 Rear Mud Guards | 2014-2019 Sierra 1500/2500HD/3500HD
Husky 57891 Rear Mud Guards | 2014-2019 Sierra 1500/2500HD/3500HD

Husky Liners

Husky 57891 Rear Mud Guards | 2014-2019 Sierra 1500/2500HD/3500HD

SKU: HUS57891
$53.99
$59.99
Husky 57881 Rear Mud Guards | 2014-2018 Silverado 1500/2500HD/3500HD
Husky 57881 Rear Mud Guards | 2014-2018 Silverado 1500/2500HD/3500HD
Husky 57881 Rear Mud Guards | 2014-2018 Silverado 1500/2500HD/3500HD
Husky 57881 Rear Mud Guards | 2014-2018 Silverado 1500/2500HD/3500HD

Husky Liners

Husky 57881 Rear Mud Guards | 2014-2018 Silverado 1500/2500HD/3500HD

SKU: HUS57881
$53.99
$59.99
Husky 56891 Front Mud Guards | 2015-2019 Sierra 2500HD/3500HD w/o Fender Flares
Husky 56891 Front Mud Guards | 2015-2019 Sierra 2500HD/3500HD w/o Fender Flares

Husky Liners

Husky 56891 Front Mud Guards | 2015-2019 Sierra 2500HD/3500HD w/o Fender Flares

SKU: HUS56891
$53.99
$59.99
AMP Research 78154-01A PowerStep Extreme Running Boards | 2014-2019 GM Silverado/Sierra 2500HD/3500HD
AMP Research 78154-01A PowerStep Extreme Running Boards | 2014-2019 GM Silverado/Sierra 2500HD/3500HD
AMP Research 78154-01A PowerStep Extreme Running Boards | 2014-2019 GM Silverado/Sierra 2500HD/3500HD

AMP Research

AMP Research 78154-01A PowerStep Extreme Running Boards | 2014-2019 GM Silverado/Sierra 2500HD/3500HD

SKU: AMP78154-01A
$2,199.99
Go Rhino 20405187PC E1 Electric Running Board Kit (Black) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Crew Cab
Go Rhino 20405187PC E1 Electric Running Board Kit (Black) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Crew Cab
Go Rhino 20405187PC E1 Electric Running Board Kit (Black) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Crew Cab
Go Rhino 20405187PC E1 Electric Running Board Kit (Black) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Crew Cab
Go Rhino 20405187PC E1 Electric Running Board Kit (Black) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Crew Cab

Go Rhino

Go Rhino 20405187PC E1 Electric Running Board Kit (Black) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Crew Cab

SKU: RHI20405187PC
$1,104.99
$1,299.99
Go Rhino 20405187T E1 Electric Running Board Kit (Bedliner) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Crew Cab
Go Rhino 20405187T E1 Electric Running Board Kit (Bedliner) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Crew Cab
Go Rhino 20405187T E1 Electric Running Board Kit (Bedliner) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Crew Cab
Go Rhino 20405187T E1 Electric Running Board Kit (Bedliner) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Crew Cab
Go Rhino 20405187T E1 Electric Running Board Kit (Bedliner) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Crew Cab

Go Rhino

Go Rhino 20405187T E1 Electric Running Board Kit (Bedliner) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Crew Cab

SKU: RHI20405187T
$1,189.99
$1,399.99
Go Rhino 20404280PC E1 Electric Running Board Kit (Black) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Extended Cab
Go Rhino 20404280PC E1 Electric Running Board Kit (Black) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Extended Cab
Go Rhino 20404280PC E1 Electric Running Board Kit (Black) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Extended Cab
Go Rhino 20404280PC E1 Electric Running Board Kit (Black) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Extended Cab
Go Rhino 20404280PC E1 Electric Running Board Kit (Black) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Extended Cab

Go Rhino

Go Rhino 20404280PC E1 Electric Running Board Kit (Black) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Extended Cab

SKU: RHI20404280PC
$1,104.99
$1,299.99
Go Rhino 20404280T E1 Electric Running Board Kit (Bedliner) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Extended Cab
Go Rhino 20404280T E1 Electric Running Board Kit (Bedliner) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Extended Cab
Go Rhino 20404280T E1 Electric Running Board Kit (Bedliner) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Extended Cab
Go Rhino 20404280T E1 Electric Running Board Kit (Bedliner) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Extended Cab
Go Rhino 20404280T E1 Electric Running Board Kit (Bedliner) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Extended Cab

Go Rhino

Go Rhino 20404280T E1 Electric Running Board Kit (Bedliner) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD Extended Cab

SKU: RHI20404280T
$1,189.99
$1,399.99
Bushwacker 40966-02 Front & Rear Extend-A-Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40966-02 Front & Rear Extend-A-Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40966-02 Front & Rear Extend-A-Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40966-02 Front & Rear Extend-A-Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40966-02 Front & Rear Extend-A-Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD

Bushwacker

Bushwacker 40966-02 Front & Rear Extend-A-Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD

SKU: BWK40966-02
$699.99
Bushwacker 40131-02 Front Extend-A-Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40131-02 Front Extend-A-Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40131-02 Front Extend-A-Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40131-02 Front Extend-A-Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40131-02 Front Extend-A-Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD

Bushwacker

Bushwacker 40131-02 Front Extend-A-Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD

SKU: BWK40131-02
$429.99
Bushwacker 40100-02 Rear Extend-A-Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40100-02 Rear Extend-A-Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40100-02 Rear Extend-A-Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40100-02 Rear Extend-A-Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40100-02 Rear Extend-A-Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD

Bushwacker

Bushwacker 40100-02 Rear Extend-A-Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD

SKU: BWK40100-02
$429.99
Bushwacker 40968-02 Boss Pocket Style Front & Rear Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40968-02 Boss Pocket Style Front & Rear Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40968-02 Boss Pocket Style Front & Rear Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40968-02 Boss Pocket Style Front & Rear Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD

Bushwacker

Bushwacker 40968-02 Boss Pocket Style Front & Rear Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD

SKU: BWK40968-02
$549.99
Bushwacker 40965-02 OE Style Front & Rear Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40965-02 OE Style Front & Rear Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40965-02 OE Style Front & Rear Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40965-02 OE Style Front & Rear Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40965-02 OE Style Front & Rear Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD

Bushwacker

Bushwacker 40965-02 OE Style Front & Rear Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD

SKU: BWK40965-02
$699.99
Bushwacker 40124-02 OE Style Rear Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40124-02 OE Style Rear Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40124-02 OE Style Rear Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40124-02 OE Style Rear Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40124-02 OE Style Rear Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD

Bushwacker

Bushwacker 40124-02 OE Style Rear Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD

SKU: BWK40124-02
$479.99
Bushwacker 40967-02 Pocket/Rivet Style Front & Rear Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40967-02 Pocket/Rivet Style Front & Rear Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40967-02 Pocket/Rivet Style Front & Rear Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40967-02 Pocket/Rivet Style Front & Rear Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD

Bushwacker

Bushwacker 40967-02 Pocket/Rivet Style Front & Rear Fender Flares with Black Smooth Finish | 2015-2019 Sierra 1500/2500HD/3500HD

SKU: BWK40967-02
$549.99
Bushwacker 40122-02 Pocket Style Rear Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40122-02 Pocket Style Rear Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40122-02 Pocket Style Rear Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD
Bushwacker 40122-02 Pocket Style Rear Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD

Bushwacker

Bushwacker 40122-02 Pocket Style Rear Fender Flares | 2015-2019 Sierra 1500/2500HD/3500HD

SKU: BWK40122-02
$349.99

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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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THE GARAGE

The Garage

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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