2017-2019 GM 2500HD/3500HD 6.6L L5 Duramax Exterior Upgrades

2017-2019 6.6L Silverado & Sierra 2500HD/3500HD

2017-2019 GM 2500HD/3500HD 6.6L L5P Duramax Bed Liners

Bed Liners

2017-2019 GM 2500HD/3500HD 6.6L L5P Duramax Bed Racks

Bed Racks

2017-2019 GM 2500HD/3500HD 6.6L L5P Duramax Bull Bars

Bull Bars

2017-2019 GM 2500HD/3500HD 6.6L L5 Duramax Bumpers

Bumpers

2017-2019 GM 2500HD/3500HD 6.6L L5P Duramax Fender Flares

Fender Flares

2017-2019 GM 2500HD/3500HD 6.6L L5P Duramax Grilles & Grille Guards

Grilles & Grille Guards

2017-2019 GM 2500HD/3500HD 6.6L L5P Duramax Mud Flaps

Mud Flaps

2017-2019 GM 2500HD/3500HD 6.6L L5P Duramax Roof Racks

Roof Racks

2017-2019 GM 2500HD/3500HD 6.6L L5P Duramax Side Steps

Side Steps

2017-2019 GM 2500HD/3500HD 6.6L L5 Duramax Tonneau Covers

Tonneau Covers

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Rugged Liner E3-C6514 E-Series Soft Folding Cover | 2015-2019 GM Silverado/Sierra 2500HD/3500HD 6.6ft Bed w/o Cargo Management System
Rugged Liner E3-C6514 E-Series Soft Folding Cover | 2015-2019 GM Silverado/Sierra 2500HD/3500HD 6.6ft Bed w/o Cargo Management System
Rugged Liner E3-C6514 E-Series Soft Folding Cover | 2015-2019 GM Silverado/Sierra 2500HD/3500HD 6.6ft Bed w/o Cargo Management System
Rugged Liner E3-C6514 E-Series Soft Folding Cover | 2015-2019 GM Silverado/Sierra 2500HD/3500HD 6.6ft Bed w/o Cargo Management System
Rugged Liner E3-C6514 E-Series Soft Folding Cover | 2015-2019 GM Silverado/Sierra 2500HD/3500HD 6.6ft Bed w/o Cargo Management System
Rugged Liner E3-C6514 E-Series Soft Folding Cover | 2015-2019 GM Silverado/Sierra 2500HD/3500HD 6.6ft Bed w/o Cargo Management System

Rugged Liner

Rugged Liner E3-C6514 E-Series Soft Folding Cover | 2015-2019 GM Silverado/Sierra 2500HD/3500HD 6.6ft Bed w/o Cargo Management System

SKU: RUGE3-C6514
$389
Rugged Liner WWGMC14 Wheel Well Rear Inner Liner | 2015-2018 GM Sierra 2500HD/3500HD SRW w/o 5th Wheel Package
Rugged Liner WWGMC14 Wheel Well Rear Inner Liner | 2015-2018 GM Sierra 2500HD/3500HD SRW w/o 5th Wheel Package
Rugged Liner WWGMC14 Wheel Well Rear Inner Liner | 2015-2018 GM Sierra 2500HD/3500HD SRW w/o 5th Wheel Package
Rugged Liner WWGMC14 Wheel Well Rear Inner Liner | 2015-2018 GM Sierra 2500HD/3500HD SRW w/o 5th Wheel Package
Rugged Liner WWGMC14 Wheel Well Rear Inner Liner | 2015-2018 GM Sierra 2500HD/3500HD SRW w/o 5th Wheel Package
Rugged Liner WWGMC14 Wheel Well Rear Inner Liner | 2015-2018 GM Sierra 2500HD/3500HD SRW w/o 5th Wheel Package

Rugged Liner

Rugged Liner WWGMC14 Wheel Well Rear Inner Liner | 2015-2018 GM Sierra 2500HD/3500HD SRW w/o 5th Wheel Package

SKU: RUGWWGMC14
$139
Rugged Liner WWC14 Wheel Well Rear Inner Liner | 2015-2019 GM Silverado 2500HD/3500HD SRW w/o 5th Wheel
Rugged Liner WWC14 Wheel Well Rear Inner Liner | 2015-2019 GM Silverado 2500HD/3500HD SRW w/o 5th Wheel
Rugged Liner WWC14 Wheel Well Rear Inner Liner | 2015-2019 GM Silverado 2500HD/3500HD SRW w/o 5th Wheel
Rugged Liner WWC14 Wheel Well Rear Inner Liner | 2015-2019 GM Silverado 2500HD/3500HD SRW w/o 5th Wheel
Rugged Liner WWC14 Wheel Well Rear Inner Liner | 2015-2019 GM Silverado 2500HD/3500HD SRW w/o 5th Wheel

Rugged Liner

Rugged Liner WWC14 Wheel Well Rear Inner Liner | 2015-2019 GM Silverado 2500HD/3500HD SRW w/o 5th Wheel

SKU: RUGWWC14
$139
BedRug BRZSPRAYON Spray-In Adhesion Kit for BedRug Liners & Mats | Universal
BedRug BRZSPRAYON Spray-In Adhesion Kit for BedRug Liners & Mats | Universal
BedRug BRZSPRAYON Spray-In Adhesion Kit for BedRug Liners & Mats | Universal
BedRug BRZSPRAYON Spray-In Adhesion Kit for BedRug Liners & Mats | Universal

BedRug

BedRug BRZSPRAYON Spray-In Adhesion Kit for BedRug Liners & Mats | Universal

SKU: BEDBRZSPRAYON
$19.95
AMP Research 76400-01A Plug-n-Play Conversion Kit for PowerSteps | 2014-2019 GM Silverado/Sierra 2500HD/3500HD
AMP Research 76400-01A Plug-n-Play Conversion Kit for PowerSteps | 2014-2019 GM Silverado/Sierra 2500HD/3500HD

AMP Research

AMP Research 76400-01A Plug-n-Play Conversion Kit for PowerSteps | 2014-2019 GM Silverado/Sierra 2500HD/3500HD

SKU: AMP76400-01A
$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

SKU: RCS47119651B
$799.95
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

SKU: RCS47119551B
$799.95
T-Rex 51211 Upper Class Mesh Grille | 2015-2019 GMC Sierra 2500HD/3500HD
T-Rex 51211 Upper Class Mesh Grille | 2015-2019 GMC Sierra 2500HD/3500HD
T-Rex 51211 Upper Class Mesh Grille | 2015-2019 GMC Sierra 2500HD/3500HD

T-Rex Grilles

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

SKU: TRX51211
$944.50
T-Rex Z312111 ZROADZ Grille Insert w/20 LED Bar | 2015-2019 GMC Sierra 2500HD/3500HD
T-Rex Z312111 ZROADZ Grille Insert w/20 LED Bar | 2015-2019 GMC Sierra 2500HD/3500HD
T-Rex Z312111 ZROADZ Grille Insert w/20 LED Bar | 2015-2019 GMC Sierra 2500HD/3500HD
T-Rex Z312111 ZROADZ Grille Insert w/20 LED Bar | 2015-2019 GMC Sierra 2500HD/3500HD

T-Rex Grilles

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

SKU: TRXZ312111
$850.50
T-Rex 6711231 X-Metal Grille | 2015-2017 GM Silverado 3500HD
T-Rex 6711231 X-Metal Grille | 2015-2017 GM Silverado 3500HD
T-Rex 6711231 X-Metal Grille | 2015-2017 GM Silverado 3500HD

T-Rex Grilles

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

SKU: TRX6711231
$989.50
T-Rex 52211 Upper Class Mesh Grille | 2015-2019 GMC Sierra 2500HD/3500HD
T-Rex 52211 Upper Class Mesh Grille | 2015-2019 GMC Sierra 2500HD/3500HD
T-Rex 52211 Upper Class Mesh Grille | 2015-2019 GMC Sierra 2500HD/3500HD
T-Rex 52211 Upper Class Mesh Grille | 2015-2019 GMC Sierra 2500HD/3500HD

T-Rex Grilles

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

SKU: TRX52211
$407.50
T-Rex 51123 Upper Class Mesh Grille | 2015-2019 GM Silverado 2500HD/3500HD
T-Rex 51123 Upper Class Mesh Grille | 2015-2019 GM Silverado 2500HD/3500HD
T-Rex 51123 Upper Class Mesh Grille | 2015-2019 GM Silverado 2500HD/3500HD
T-Rex 51123 Upper Class Mesh Grille | 2015-2019 GM Silverado 2500HD/3500HD
T-Rex 51123 Upper Class Mesh Grille | 2015-2019 GM Silverado 2500HD/3500HD

T-Rex Grilles

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

SKU: TRX51123
$1,389.50
T-Rex 25211 Billet Bumper | 2015-2019 GMC Sierra 2500HD/3500HD
T-Rex 25211 Billet Bumper | 2015-2019 GMC Sierra 2500HD/3500HD
T-Rex 25211 Billet Bumper | 2015-2019 GMC Sierra 2500HD/3500HD

T-Rex Grilles

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

SKU: TRX25211
$119.50
T-Rex 21122 Horizontal Billet Grille | 2015-2019 GM Silverado 2500HD/3500HD
T-Rex 21122 Horizontal Billet Grille | 2015-2019 GM Silverado 2500HD/3500HD
T-Rex 21122 Horizontal Billet Grille | 2015-2019 GM Silverado 2500HD/3500HD
T-Rex 21122 Horizontal Billet Grille | 2015-2019 GM Silverado 2500HD/3500HD

T-Rex Grilles

T-Rex 21122 Horizontal Billet Grille | 2015-2019 GM Silverado 2500HD/3500HD

SKU: TRX21122
$289.50
T-Rex 20211 Horizontal Billet Grille | 2015-2019 Sierra 2500HD/3500HD
T-Rex 20211 Horizontal Billet Grille | 2015-2019 Sierra 2500HD/3500HD
T-Rex 20211 Horizontal Billet Grille | 2015-2019 Sierra 2500HD/3500HD

T-Rex Grilles

T-Rex 20211 Horizontal Billet Grille | 2015-2019 Sierra 2500HD/3500HD

SKU: TRX20211
$444.50
Ranch Hand GGG151BLS Legend Grille Guard | 2015-2019 GMC Sierra 2500HD/3500HD
Ranch Hand GGG151BLS Legend Grille Guard | 2015-2019 GMC Sierra 2500HD/3500HD
Ranch Hand GGG151BLS Legend Grille Guard | 2015-2019 GMC Sierra 2500HD/3500HD
Ranch Hand GGG151BLS Legend Grille Guard | 2015-2019 GMC Sierra 2500HD/3500HD
Ranch Hand GGG151BLS Legend Grille Guard | 2015-2019 GMC Sierra 2500HD/3500HD

Ranch Hand

Ranch Hand GGG151BLS Legend Grille Guard | 2015-2019 GMC Sierra 2500HD/3500HD

SKU: RANGGG151BLS
$976.95
Ranch Hand GGG151BL1 Legend Grille Guard (w/o Sensors) | 2015-2019 GM Sierra 2500HD/3500HD
Ranch Hand GGG151BL1 Legend Grille Guard (w/o Sensors) | 2015-2019 GM Sierra 2500HD/3500HD
Ranch Hand GGG151BL1 Legend Grille Guard (w/o Sensors) | 2015-2019 GM Sierra 2500HD/3500HD
Ranch Hand GGG151BL1 Legend Grille Guard (w/o Sensors) | 2015-2019 GM Sierra 2500HD/3500HD
Ranch Hand GGG151BL1 Legend Grille Guard (w/o Sensors) | 2015-2019 GM Sierra 2500HD/3500HD

Ranch Hand

Ranch Hand GGG151BL1 Legend Grille Guard (w/o Sensors) | 2015-2019 GM Sierra 2500HD/3500HD

SKU: RANGGG151BL1
$976.95
Ranch Hand GGC151BL1 Legend Grille Guard (w/o Sensors) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD
Ranch Hand GGC151BL1 Legend Grille Guard (w/o Sensors) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD
Ranch Hand GGC151BL1 Legend Grille Guard (w/o Sensors) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD
Ranch Hand GGC151BL1 Legend Grille Guard (w/o Sensors) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD
Ranch Hand GGC151BL1 Legend Grille Guard (w/o Sensors) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD

Ranch Hand

Ranch Hand GGC151BL1 Legend Grille Guard (w/o Sensors) | 2015-2019 GM Silverado/Sierra 2500HD/3500HD

SKU: RANGGC151BL1
$976.95
Rough Country 10779 LED Rear Bumper | 2011-2019 GM Silverado/Sierra 2500HD/3500HD
Rough Country 10779 LED Rear Bumper | 2011-2019 GM Silverado/Sierra 2500HD/3500HD
Rough Country 10779 LED Rear Bumper | 2011-2019 GM Silverado/Sierra 2500HD/3500HD
Rough Country 10779 LED Rear Bumper | 2011-2019 GM Silverado/Sierra 2500HD/3500HD
Rough Country 10779 LED Rear Bumper | 2011-2019 GM Silverado/Sierra 2500HD/3500HD

Rough Country

Rough Country 10779 LED Rear Bumper | 2011-2019 GM Silverado/Sierra 2500HD/3500HD

SKU: RCS10779
$699.95
Westin 57-93785 HDX Win Mount Grille Guard | 2015-2019 GM Silverado 2500HD/3500HD
Westin 57-93785 HDX Win Mount Grille Guard | 2015-2019 GM Silverado 2500HD/3500HD
Westin 57-93785 HDX Win Mount Grille Guard | 2015-2019 GM Silverado 2500HD/3500HD

Westin

Westin 57-93785 HDX Win Mount Grille Guard | 2015-2019 GM Silverado 2500HD/3500HD

SKU: WES57-93785
$1,621.99
Westin 57-3795 HDX Black Steel Grille Guard | 2015-2019 GMC Sierra 2500HD/3500HD
Westin 57-3795 HDX Black Steel Grille Guard | 2015-2019 GMC Sierra 2500HD/3500HD
Westin 57-3795 HDX Black Steel Grille Guard | 2015-2019 GMC Sierra 2500HD/3500HD

Westin

Westin 57-3795 HDX Black Steel Grille Guard | 2015-2019 GMC Sierra 2500HD/3500HD

SKU: WES57-3795
$1,146.99
Westin 57-3790 HDX Stainless Steel Grille Guard | 2015-2019 GMC Sierra 2500HD/3500HD
Westin 57-3790 HDX Stainless Steel Grille Guard | 2015-2019 GMC Sierra 2500HD/3500HD
Westin 57-3790 HDX Stainless Steel Grille Guard | 2015-2019 GMC Sierra 2500HD/3500HD

Westin

Westin 57-3790 HDX Stainless Steel Grille Guard | 2015-2019 GMC Sierra 2500HD/3500HD

SKU: WES57-3790
$2,006.99
Westin 57-3785 HDX Black Steel Grille Guard | 2015-2019 GM Silverado 2500HD/3500HD
Westin 57-3785 HDX Black Steel Grille Guard | 2015-2019 GM Silverado 2500HD/3500HD
Westin 57-3785 HDX Black Steel Grille Guard | 2015-2019 GM Silverado 2500HD/3500HD

Westin

Westin 57-3785 HDX Black Steel Grille Guard | 2015-2019 GM Silverado 2500HD/3500HD

SKU: WES57-3785
$1,146.99
Westin 57-3780 HDX Stainless Steel Grille Guard | 2015-2019 GM Silverado 2500HD/3500HD
Westin 57-3780 HDX Stainless Steel Grille Guard | 2015-2019 GM Silverado 2500HD/3500HD
Westin 57-3780 HDX Stainless Steel Grille Guard | 2015-2019 GM Silverado 2500HD/3500HD
Westin 57-3780 HDX Stainless Steel Grille Guard | 2015-2019 GM Silverado 2500HD/3500HD
Westin 57-3780 HDX Stainless Steel Grille Guard | 2015-2019 GM Silverado 2500HD/3500HD
Westin 57-3780 HDX Stainless Steel Grille Guard | 2015-2019 GM Silverado 2500HD/3500HD

Westin

Westin 57-3780 HDX Stainless Steel Grille Guard | 2015-2019 GM Silverado 2500HD/3500HD

SKU: WES57-3780
$2,006.99

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2017-2019 6.6L Silverado & Sierra 2500HD/3500HD

Power Lift Shop All

Your 2017-2019 GM 6.6L Duramax L5P already packs an aggressive and rugged look, but if you're looking to take it a step further, pick up some custom exterior upgrades from Alligator Performance! We offer a massive selection of premium exterior parts that not only enhance your GM 2500HD/3500HD’s style but also improve its functionality along the way. From aggressive side steps and fender flares to sleek grilles, mud flaps, and roof racks, we have everything you need to make your Sierra or Silverado stand out on the road or trail. And after you've picked up a few exterior accessories, add on some new Wheels and Tires to make statement around every corner. GM Duramax Fitments: 2017, 2018, 2019 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>2017-2019 6.6L L5P
Side Steps
Fender Flares
Grilles
Mud Flaps
Roof Racks

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