2004.5-2005 GM 2500HD/3500HD 6.6L LL Duramax Exterior Upgrades

2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Bed Liners

Bed Liners

2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Bed Racks

Bed Racks

2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Bull Bars

Bull Bars

2004.5-2005 GM 2500HD/3500HD 6.6L LL Duramax Bumpers

Bumpers

2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Fender Flares

Fender Flares

2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Mud Flaps

Mud Flaps

2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Side Steps

Side Steps

2004.5-2005 GM 2500HD/3500HD 6.6L LL Duramax Tonneau Covers

Tonneau Covers

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$2,998.98
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Husky 57211 Rear Mud Guards | 1999-2006 Silverado 1500/2500HD/3500HD Crew Cab
Husky 57211 Rear Mud Guards | 1999-2006 Silverado 1500/2500HD/3500HD Crew Cab

Husky Liners

Husky 57211 Rear Mud Guards | 1999-2006 Silverado 1500/2500HD/3500HD Crew Cab

SKU: HUS57211
$53.99
$59.99
Husky 56251 Front Mud Guards | 2000-2007 Silverado 1500/2500HD/3500HD Crew Cab
Husky 56251 Front Mud Guards | 2000-2007 Silverado 1500/2500HD/3500HD Crew Cab

Husky Liners

Husky 56251 Front Mud Guards | 2000-2007 Silverado 1500/2500HD/3500HD Crew Cab

SKU: HUS56251
$53.99
$59.99
Husky 56211 Front Mud Guards | 1999-2007 GM Silverado 1500/2500HD/3500HD Crew Cab
Husky 56211 Front Mud Guards | 1999-2007 GM Silverado 1500/2500HD/3500HD Crew Cab

Husky Liners

Husky 56211 Front Mud Guards | 1999-2007 GM Silverado 1500/2500HD/3500HD Crew Cab

SKU: HUS56211
$53.99
$59.99
Husky 57351 Rear Mud Guards | 2001-2007 GM Silverado 3500HD Dually
Husky 57351 Rear Mud Guards | 2001-2007 GM Silverado 3500HD Dually

Husky Liners

Husky 57351 Rear Mud Guards | 2001-2007 GM Silverado 3500HD Dually

SKU: HUS57351
$107.99
$119.99
Bushwacker 40918-02 Pocket Style Front & Rear Fender Flares | 2003-2007 GM Silverado 1500/2500HD/3500HD (Non-Dually) Standard & Long Bed
Bushwacker 40918-02 Pocket Style Front & Rear Fender Flares | 2003-2007 GM Silverado 1500/2500HD/3500HD (Non-Dually) Standard & Long Bed
Bushwacker 40918-02 Pocket Style Front & Rear Fender Flares | 2003-2007 GM Silverado 1500/2500HD/3500HD (Non-Dually) Standard & Long Bed
Bushwacker 40918-02 Pocket Style Front & Rear Fender Flares | 2003-2007 GM Silverado 1500/2500HD/3500HD (Non-Dually) Standard & Long Bed

Bushwacker

Bushwacker 40918-02 Pocket Style Front & Rear Fender Flares | 2003-2007 GM Silverado 1500/2500HD/3500HD (Non-Dually) Standard & Long Bed

SKU: BWK40918-02
$549.99
AMP Research 75301-01A Bed Step | 1999-2007 GM Silverado/Sierra 2500HD/3500HD
AMP Research 75301-01A Bed Step | 1999-2007 GM Silverado/Sierra 2500HD/3500HD
AMP Research 75301-01A Bed Step | 1999-2007 GM Silverado/Sierra 2500HD/3500HD
AMP Research 75301-01A Bed Step | 1999-2007 GM Silverado/Sierra 2500HD/3500HD
AMP Research 75301-01A Bed Step | 1999-2007 GM Silverado/Sierra 2500HD/3500HD

AMP Research

AMP Research 75301-01A Bed Step | 1999-2007 GM Silverado/Sierra 2500HD/3500HD

SKU: AMP75301-01A
$329.99
Bushwacker 40945-02 Front & Rear Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Bushwacker 40945-02 Front & Rear Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Bushwacker 40945-02 Front & Rear Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Bushwacker 40945-02 Front & Rear Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD

Bushwacker

Bushwacker 40945-02 Front & Rear Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD

SKU: BWK40945-02
$699.99
Bushwacker 40917-02 Pocket Style Front & Rear Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Bushwacker 40917-02 Pocket Style Front & Rear Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Bushwacker 40917-02 Pocket Style Front & Rear Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Bushwacker 40917-02 Pocket Style Front & Rear Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Bushwacker 40917-02 Pocket Style Front & Rear Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD

Bushwacker

Bushwacker 40917-02 Pocket Style Front & Rear Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD

SKU: BWK40917-02
$549.99
Bushwacker 40915-02 OE Style Front & Rear Fender Flares | 2003-2007 Silverado 1500/2500HD/3500HD
Bushwacker 40915-02 OE Style Front & Rear Fender Flares | 2003-2007 Silverado 1500/2500HD/3500HD
Bushwacker 40915-02 OE Style Front & Rear Fender Flares | 2003-2007 Silverado 1500/2500HD/3500HD
Bushwacker 40915-02 OE Style Front & Rear Fender Flares | 2003-2007 Silverado 1500/2500HD/3500HD
Bushwacker 40915-02 OE Style Front & Rear Fender Flares | 2003-2007 Silverado 1500/2500HD/3500HD

Bushwacker

Bushwacker 40915-02 OE Style Front & Rear Fender Flares | 2003-2007 Silverado 1500/2500HD/3500HD

SKU: BWK40915-02
$699.99
Bushwacker 40104-02 Rear Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Bushwacker 40104-02 Rear Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Bushwacker 40104-02 Rear Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Bushwacker 40104-02 Rear Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Bushwacker 40104-02 Rear Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD

Bushwacker

Bushwacker 40104-02 Rear Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD

SKU: BWK40104-02
$429.99
Bushwacker 40103-02 Front Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Bushwacker 40103-02 Front Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Bushwacker 40103-02 Front Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Bushwacker 40103-02 Front Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Bushwacker 40103-02 Front Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD

Bushwacker

Bushwacker 40103-02 Front Extend-A-Fender Flares | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD

SKU: BWK40103-02
$429.99

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If you want to transform your 2004.5-2005 GM 6.6L Duramax LLY build into a truck you can truly call your own, choose from our vast selection of exterior parts and upgrades available here at Alligator Performance. The right combination of exterior upgrades on your Sierra/Silverado will turn heads each time you get behind the wheel. Whether you're looking for some bolt-on fender flares for a quick and easy upgrade, or a premium roof rack for improved cargo carrying capacity, we have it all. Better yet, 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: 2004, 2005 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>2004.5-2005 6.6L LLY
Side Steps
Fender Flares
Grilles
Mud Flaps
Roof Racks

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