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

FREE SHIPPING ON ALL
ORDERS OVER $70

PRICE MATCH GUARANTEE

BUILD NOW, PAY LATER
FINANCING OPTIONS

30-DAY RETURN SATISFACTION GUARANTEE

DIESEL TRUCK EXPERTS STANDING BY

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

Availability
Manufacturer
Make
Model
Year
Price
$0
$2,299.99
Rating
Loading products...
Filter
114 products
Sort by:
Best selling
Availability
Manufacturer
Make
Model
Year
Price
$0
$2,299.99
Rating
AMP Research 76400-01A Plug-n-Play Conversion Kit for PowerSteps | 2014-2018 GM Silverado/Sierra 2500HD/3500HD
AMP Research 76400-01A Plug-n-Play Conversion Kit for PowerSteps | 2014-2018 GM Silverado/Sierra 2500HD/3500HD

AMP Research

AMP Research 76400-01A Plug-n-Play Conversion Kit for PowerSteps | 2014-2018 GM Silverado/Sierra 2500HD/3500HD

$219.99
Rough Country 47119651B Hard Low Profile Bed Cover | 2014-2019 GM Silverado/Sierra 2500HD/3500HD 6.75ft Bed
Rough Country 47119651B Hard Low Profile Bed Cover | 2014-2019 GM Silverado/Sierra 2500HD/3500HD 6.75ft Bed
Rough Country 47119651B Hard Low Profile Bed Cover | 2014-2019 GM Silverado/Sierra 2500HD/3500HD 6.75ft Bed
Rough Country 47119651B Hard Low Profile Bed Cover | 2014-2019 GM Silverado/Sierra 2500HD/3500HD 6.75ft Bed
Rough Country 47119651B Hard Low Profile Bed Cover | 2014-2019 GM Silverado/Sierra 2500HD/3500HD 6.75ft Bed
Rough Country 47119651B Hard Low Profile Bed Cover | 2014-2019 GM Silverado/Sierra 2500HD/3500HD 6.75ft Bed

Rough Country

Rough Country 47119651B Hard Low Profile Bed Cover | 2014-2019 GM Silverado/Sierra 2500HD/3500HD 6.75ft Bed

$649.95
Rough Country 47119551B Hard Low Profile Bed Cover | 2014-2019 GM Silverado/Sierra 2500HD/3500HD 5.8ft Bed
Rough Country 47119551B Hard Low Profile Bed Cover | 2014-2019 GM Silverado/Sierra 2500HD/3500HD 5.8ft Bed
Rough Country 47119551B Hard Low Profile Bed Cover | 2014-2019 GM Silverado/Sierra 2500HD/3500HD 5.8ft Bed
Rough Country 47119551B Hard Low Profile Bed Cover | 2014-2019 GM Silverado/Sierra 2500HD/3500HD 5.8ft Bed
Rough Country 47119551B Hard Low Profile Bed Cover | 2014-2019 GM Silverado/Sierra 2500HD/3500HD 5.8ft Bed
Rough Country 47119551B Hard Low Profile Bed Cover | 2014-2019 GM Silverado/Sierra 2500HD/3500HD 5.8ft Bed

Rough Country

Rough Country 47119551B Hard Low Profile Bed Cover | 2014-2019 GM Silverado/Sierra 2500HD/3500HD 5.8ft Bed

$649.95
T-Rex 51211 Upper Class Mesh Grille | 2015-2019 Sierra 2500HD/3500HD
T-Rex 51211 Upper Class Mesh Grille | 2015-2019 Sierra 2500HD/3500HD

T-Rex Grilles

T-Rex 51211 Upper Class Mesh Grille | 2015-2019 Sierra 2500HD/3500HD

$944.50
T-Rex Z312111 ZROADZ Grille Insert w/20 LED Bar | 2015-2019 Sierra 2500HD/3500HD
T-Rex Z312111 ZROADZ Grille Insert w/20 LED Bar | 2015-2019 Sierra 2500HD/3500HD

T-Rex Grilles

T-Rex Z312111 ZROADZ Grille Insert w/20 LED Bar | 2015-2019 Sierra 2500HD/3500HD

$850.50
T-Rex 7312111-BR HD Stealth Laser Torch Grille with 30 inch LED Bar Black with Black Studs | 2015-2019 Sierra 2500HD/3500HD
T-Rex 7312111-BR HD Stealth Laser Torch Grille with 30 inch LED Bar Black with Black Studs | 2015-2019 Sierra 2500HD/3500HD
T-Rex 7312111-BR HD Stealth Laser Torch Grille with 30 inch LED Bar Black with Black Studs | 2015-2019 Sierra 2500HD/3500HD
T-Rex 7312111-BR HD Stealth Laser Torch Grille with 30 inch LED Bar Black with Black Studs | 2015-2019 Sierra 2500HD/3500HD
T-Rex 7312111-BR HD Stealth Laser Torch Grille with 30 inch LED Bar Black with Black Studs | 2015-2019 Sierra 2500HD/3500HD

T-Rex Grilles

T-Rex 7312111-BR HD Stealth Laser Torch Grille with 30 inch LED Bar Black with Black Studs | 2015-2019 Sierra 2500HD/3500HD

$1,389.50
T-Rex 7311241 HD Laser Torch Grille with 30 inch LED Bar Black with Chrome Studs | 2015-2019 Silverado 2500HD/3500HD
T-Rex 7311241 HD Laser Torch Grille with 30 inch LED Bar Black with Chrome Studs | 2015-2019 Silverado 2500HD/3500HD
T-Rex 7311241 HD Laser Torch Grille with 30 inch LED Bar Black with Chrome Studs | 2015-2019 Silverado 2500HD/3500HD
T-Rex 7311241 HD Laser Torch Grille with 30 inch LED Bar Black with Chrome Studs | 2015-2019 Silverado 2500HD/3500HD
T-Rex 7311241 HD Laser Torch Grille with 30 inch LED Bar Black with Chrome Studs | 2015-2019 Silverado 2500HD/3500HD

T-Rex Grilles

T-Rex 7311241 HD Laser Torch Grille with 30 inch LED Bar Black with Chrome Studs | 2015-2019 Silverado 2500HD/3500HD

$1,199.50
T-Rex 6711231 X-Metal Grille | 2015-2017 Silverado 3500HD
T-Rex 6711231 X-Metal Grille | 2015-2017 Silverado 3500HD

T-Rex Grilles

T-Rex 6711231 X-Metal Grille | 2015-2017 Silverado 3500HD

$989.50
T-Rex 52211 Upper Class Mesh Grille | 2015-2019 Sierra 2500HD/3500HD
T-Rex 52211 Upper Class Mesh Grille | 2015-2019 Sierra 2500HD/3500HD

T-Rex Grilles

T-Rex 52211 Upper Class Mesh Grille | 2015-2019 Sierra 2500HD/3500HD

$407.50
T-Rex 51123 Upper Class Mesh Grille | 2015-2019 Silverado 2500HD/3500HD
T-Rex 51123 Upper Class Mesh Grille | 2015-2019 Silverado 2500HD/3500HD

T-Rex Grilles

T-Rex 51123 Upper Class Mesh Grille | 2015-2019 Silverado 2500HD/3500HD

$1,389.50
T-Rex 25211 Billet Bumper | 2015-2019 Sierra 2500HD/3500HD
T-Rex 25211 Billet Bumper | 2015-2019 Sierra 2500HD/3500HD

T-Rex Grilles

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

$119.50
T-Rex 25209 Bumper Billet Grille | 2011-2014 Sierra 2500HD/3500HD
T-Rex 25209 Bumper Billet Grille | 2011-2014 Sierra 2500HD/3500HD

T-Rex Grilles

T-Rex 25209 Bumper Billet Grille | 2011-2014 Sierra 2500HD/3500HD

$109.50

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

Can We Help You Find Something?

Give us a call: +1-208-719-7400

Chat With Us
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.

Shop The Garage