2001-2004 GM 2500HD/3500HD 6.6L LB Duramax Exterior Upgrades

2001-2004 6.6L Silverado & Sierra 2500HD/3500HD

2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Bed Liners

Bed Liners

2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Bed Racks

Bed Racks

2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Bull Bars

Bull Bars

2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Bumpers

Bumpers

2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Fender Flares

Fender Flares

2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Grilles & Grille Guards

Grilles & Grille Guards

2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Mud Flaps

Mud Flaps

2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Roof Racks

Roof Racks

2001-2004 GM 2500HD/3500HD 6.6L LB7 Duramax Side Steps

Side Steps

2001-2004 GM 2500HD/3500HD 6.6L LB Duramax Tonneau Covers

Tonneau Covers

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Westin 40-1245 Sportsman Black Grille Guard | 2003-2007 Silverado 2500HD/3500HD
Westin 40-1245 Sportsman Black Grille Guard | 2003-2007 Silverado 2500HD/3500HD
Westin 40-1245 Sportsman Black Grille Guard | 2003-2007 Silverado 2500HD/3500HD
Westin 40-1245 Sportsman Black Grille Guard | 2003-2007 Silverado 2500HD/3500HD

Westin

Westin 40-1245 Sportsman Black Grille Guard | 2003-2007 Silverado 2500HD/3500HD

SKU: WES40-1245
$1,132.32
Westin 32-1245 Ultimate Black Bull Bar | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Westin 32-1245 Ultimate Black Bull Bar | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Westin 32-1245 Ultimate Black Bull Bar | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD
Westin 32-1245 Ultimate Black Bull Bar | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD

Westin

Westin 32-1245 Ultimate Black Bull Bar | 1999-2007 GM Silverado/Sierra 1500/2500HD/3500HD

SKU: WES32-1245
$594.44
Westin 31-5240 E-Series Polished Bull Bar | 1999-2007 GM Silverado/Sierra 1500/2500HD
Westin 31-5240 E-Series Polished Bull Bar | 1999-2007 GM Silverado/Sierra 1500/2500HD
Westin 31-5240 E-Series Polished Bull Bar | 1999-2007 GM Silverado/Sierra 1500/2500HD
Westin 31-5240 E-Series Polished Bull Bar | 1999-2007 GM Silverado/Sierra 1500/2500HD

Westin

Westin 31-5240 E-Series Polished Bull Bar | 1999-2007 GM Silverado/Sierra 1500/2500HD

SKU: WES31-5240
$642.64
BedRug TW2X4MAT TrackMat 2ft x 4ft Folding Utility Mat | Universal
BedRug TW2X4MAT TrackMat 2ft x 4ft Folding Utility Mat | Universal
BedRug TW2X4MAT TrackMat 2ft x 4ft Folding Utility Mat | Universal

BedRug

BedRug TW2X4MAT TrackMat 2ft x 4ft Folding Utility Mat | Universal

SKU: BEDTW2X4MAT
$34.63
BAK Industries 80102 Revolver X4s Hard Rolling Cover | 1988-2014 GM Silverado/Sierra 1500/2500HD/3500HD Long Bed
BAK Industries 80102 Revolver X4s Hard Rolling Cover | 1988-2014 GM Silverado/Sierra 1500/2500HD/3500HD Long Bed

BAK Industries

BAK Industries 80102 Revolver X4s Hard Rolling Cover | 1988-2014 GM Silverado/Sierra 1500/2500HD/3500HD Long Bed

SKU: BAK80102
$1,549.99
BAK Industries 80101 Revolver X4s Hard Rolling Cover | 1988-2014 GM Silverado/Sierra 1500/2500HD/3500HD Short Bed
BAK Industries 80101 Revolver X4s Hard Rolling Cover | 1988-2014 GM Silverado/Sierra 1500/2500HD/3500HD Short Bed
BAK Industries 80101 Revolver X4s Hard Rolling Cover | 1988-2014 GM Silverado/Sierra 1500/2500HD/3500HD Short Bed
BAK Industries 80101 Revolver X4s Hard Rolling Cover | 1988-2014 GM Silverado/Sierra 1500/2500HD/3500HD Short Bed
BAK Industries 80101 Revolver X4s Hard Rolling Cover | 1988-2014 GM Silverado/Sierra 1500/2500HD/3500HD Short Bed

BAK Industries

BAK Industries 80101 Revolver X4s Hard Rolling Cover | 1988-2014 GM Silverado/Sierra 1500/2500HD/3500HD Short Bed

SKU: BAK80101
$1,479.99
Front Runner KRCS007T Retrax 6.5ft Slimline II Load Bed Rack Kit | 1988-2025 GM Silverado/Sierra 1500/2500HD/3500HD
Front Runner KRCS007T Retrax 6.5ft Slimline II Load Bed Rack Kit | 1988-2025 GM Silverado/Sierra 1500/2500HD/3500HD
Front Runner KRCS007T Retrax 6.5ft Slimline II Load Bed Rack Kit | 1988-2025 GM Silverado/Sierra 1500/2500HD/3500HD
Front Runner KRCS007T Retrax 6.5ft Slimline II Load Bed Rack Kit | 1988-2025 GM Silverado/Sierra 1500/2500HD/3500HD
Front Runner KRCS007T Retrax 6.5ft Slimline II Load Bed Rack Kit | 1988-2025 GM Silverado/Sierra 1500/2500HD/3500HD
Front Runner KRCS007T Retrax 6.5ft Slimline II Load Bed Rack Kit | 1988-2025 GM Silverado/Sierra 1500/2500HD/3500HD

Front Runner

Front Runner KRCS007T Retrax 6.5ft Slimline II Load Bed Rack Kit | 1988-2025 GM Silverado/Sierra 1500/2500HD/3500HD

SKU: FROKRCS007T
$1,957
Front Runner KRCS008 Retrax 5.7ft Triple Load Bar Kit | 2007-2025 GM Silverado/Sierra 1500/2500HD/3500HD
Front Runner KRCS008 Retrax 5.7ft Triple Load Bar Kit | 2007-2025 GM Silverado/Sierra 1500/2500HD/3500HD
Front Runner KRCS008 Retrax 5.7ft Triple Load Bar Kit | 2007-2025 GM Silverado/Sierra 1500/2500HD/3500HD
Front Runner KRCS008 Retrax 5.7ft Triple Load Bar Kit | 2007-2025 GM Silverado/Sierra 1500/2500HD/3500HD
Front Runner KRCS008 Retrax 5.7ft Triple Load Bar Kit | 2007-2025 GM Silverado/Sierra 1500/2500HD/3500HD
Front Runner KRCS008 Retrax 5.7ft Triple Load Bar Kit | 2007-2025 GM Silverado/Sierra 1500/2500HD/3500HD

Front Runner

Front Runner KRCS008 Retrax 5.7ft Triple Load Bar Kit | 2007-2025 GM Silverado/Sierra 1500/2500HD/3500HD

SKU: FROKRCS008
$684
Front Runner KRCS001T Slimline II Load Bed Rack Kit | 1987-2025 Silverado 1500/2500HD/3500HD
Front Runner KRCS001T Slimline II Load Bed Rack Kit | 1987-2025 Silverado 1500/2500HD/3500HD
Front Runner KRCS001T Slimline II Load Bed Rack Kit | 1987-2025 Silverado 1500/2500HD/3500HD
Front Runner KRCS001T Slimline II Load Bed Rack Kit | 1987-2025 Silverado 1500/2500HD/3500HD
Front Runner KRCS001T Slimline II Load Bed Rack Kit | 1987-2025 Silverado 1500/2500HD/3500HD
Front Runner KRCS001T Slimline II Load Bed Rack Kit | 1987-2025 Silverado 1500/2500HD/3500HD

Front Runner

Front Runner KRCS001T Slimline II Load Bed Rack Kit | 1987-2025 Silverado 1500/2500HD/3500HD

SKU: FROKRCS001T
$1,352
S&B 84-1000 Mud Flaps for 2.0 inch Hitch Receivers | Universal
S&B 84-1000 Mud Flaps for 2.0 inch Hitch Receivers | Universal
S&B 84-1000 Mud Flaps for 2.0 inch Hitch Receivers | Universal
S&B 84-1000 Mud Flaps for 2.0 inch Hitch Receivers | Universal
S&B 84-1000 Mud Flaps for 2.0 inch Hitch Receivers | Universal

S&B Filters

S&B 84-1000 Mud Flaps for 2.0 inch Hitch Receivers | Universal

SKU: SAB84-1000
$349
S&B 84-1002 Mud Flaps for 3.0 inch Hitch Receivers | Universal
S&B 84-1002 Mud Flaps for 3.0 inch Hitch Receivers | Universal
S&B 84-1002 Mud Flaps for 3.0 inch Hitch Receivers | Universal
S&B 84-1002 Mud Flaps for 3.0 inch Hitch Receivers | Universal
S&B 84-1002 Mud Flaps for 3.0 inch Hitch Receivers | Universal

S&B Filters

S&B 84-1002 Mud Flaps for 3.0 inch Hitch Receivers | Universal

SKU: SAB84-1002
$349
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
AMP Research 75131-01 Light Kit | AMP Steps with New Style Controller | Universal
AMP Research 75131-01 Light Kit | AMP Steps with New Style Controller | Universal
AMP Research 75131-01 Light Kit | AMP Steps with New Style Controller | Universal
AMP Research 75131-01 Light Kit | AMP Steps with New Style Controller | Universal

AMP Research

AMP Research 75131-01 Light Kit | AMP Steps with New Style Controller | Universal

SKU: AMP75131-01
$169.99
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
Aries 234009-2 3 inch Stainless Steel Side Steps | 1999-2008 GM Silverado/Sierra 1500/2500HD/3500HD
Aries 234009-2 3 inch Stainless Steel Side Steps | 1999-2008 GM Silverado/Sierra 1500/2500HD/3500HD
Aries 234009-2 3 inch Stainless Steel Side Steps | 1999-2008 GM Silverado/Sierra 1500/2500HD/3500HD

Aries

Aries 234009-2 3 inch Stainless Steel Side Steps | 1999-2008 GM Silverado/Sierra 1500/2500HD/3500HD

SKU: ARI234009-2
$718.75
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 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 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
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
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
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
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
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

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2001-2004 6.6L Silverado & Sierra 2500HD/3500HD

Power Lift Shop All

If you want to transform your 2001-2004 GM 6.6L Duramax LB7 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: 2001, 2002, 2003, 2004 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>2001-2004 6.6L LB7
Side Steps
Fender Flares
Grilles
Mud Flaps
Roof Racks

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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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