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

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

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

$407.50
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T-Rex 6202141 Laser Billet Grille | 2016-2018 Sierra 1500
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T-Rex 6202141 Laser Billet Grille | 2016-2018 Sierra 1500

T-Rex 6202141 Laser Billet Grille | 2016-2018 Sierra 1500

$239.50
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T-Rex 6202140 Laser Billet Grille | 2016-2018 Sierra 1500
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T-Rex 6202140 Laser Billet Grille | 2016-2018 Sierra 1500
T-Rex 6202140 Laser Billet Grille | 2016-2018 Sierra 1500

T-Rex 6202140 Laser Billet Grille | 2016-2018 Sierra 1500

$239.50
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T-Rex 54215 Upper Class Mesh Grille | 2016-2018 Sierra 1500
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T-Rex 54215 Upper Class Mesh Grille | 2016-2018 Sierra 1500

T-Rex 54215 Upper Class Mesh Grille | 2016-2018 Sierra 1500

$744.50
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T-Rex 51133 Upper Class Mesh Grille | 2016-2018 Silverado 1500
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T-Rex 51133 Upper Class Mesh Grille | 2016-2018 Silverado 1500
T-Rex 51133 Upper Class Mesh Grille | 2016-2018 Silverado 1500

T-Rex 51133 Upper Class Mesh Grille | 2016-2018 Silverado 1500

$1,097.50
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T-Rex 51131 Upper Class Mesh Grille | 2016-2018 Silverado 1500
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T-Rex 51131 Upper Class Mesh Grille | 2016-2018 Silverado 1500
T-Rex 51131 Upper Class Mesh Grille | 2016-2018 Silverado 1500

T-Rex 51131 Upper Class Mesh Grille | 2016-2018 Silverado 1500

$1,097.50
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T-Rex 51127 Upper Class Mesh Grille | 2016-2018 Silverado 1500
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T-Rex 51127 Upper Class Mesh Grille | 2016-2018 Silverado 1500
T-Rex 51127 Upper Class Mesh Grille | 2016-2018 Silverado 1500

T-Rex 51127 Upper Class Mesh Grille | 2016-2018 Silverado 1500

$1,189.50
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T-Rex 51123 Upper Class Mesh Grille | 2015-2019 Silverado 2500HD/3500HD
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T-Rex 51123 Upper Class Mesh Grille | 2015-2019 Silverado 2500HD/3500HD

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

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

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

$119.50
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T-Rex 21452B Horizontal Billet Grille | 2013-2018 Dodge Ram 2500/3500
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T-Rex 21452B Horizontal Billet Grille | 2013-2018 Dodge Ram 2500/3500
T-Rex 21452B Horizontal Billet Grille | 2013-2018 Dodge Ram 2500/3500

T-Rex 21452B Horizontal Billet Grille | 2013-2018 Dodge Ram 2500/3500

$329.50
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T-Rex 21458 Horizontal Billet Grille | 2013-2018 Dodge Ram 1500
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T-Rex 21458 Horizontal Billet Grille | 2013-2018 Dodge Ram 1500

T-Rex 21458 Horizontal Billet Grille | 2013-2018 Dodge Ram 1500

$259.50
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T-Rex 21215 Horizontal Billet Grille | 2016-2018 Sierra 1500
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T-Rex 21215 Horizontal Billet Grille | 2016-2018 Sierra 1500

T-Rex 21215 Horizontal Billet Grille | 2016-2018 Sierra 1500

$284.50
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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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