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

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 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 Side Steps

Side Steps

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

Tonneau Covers

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Merchant 10008 Wheel Well Liner Clips | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Merchant 10008 Wheel Well Liner Clips | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Merchant Automotive

Merchant 10008 Wheel Well Liner Clips | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: MAT10008
$4.92
AMP Research 75113-01A Power Step Electric Running Board | 1999-2007 GM Silverado/Sierra 2500HD/3500HD
IN STOCK
AMP Research 75113-01A Power Step Electric Running Board | 1999-2007 GM Silverado/Sierra 2500HD/3500HD

AMP Research

AMP Research 75113-01A Power Step Electric Running Board | 1999-2007 GM Silverado/Sierra 2500HD/3500HD

SKU: AMP75113-01A
$1,599.99
Edge 98203 License Plate Mount Backup Camera For Edge CTS3 & Diablosport Trinity 2 | Universal
IN STOCK
Edge 98203 License Plate Mount Backup Camera For Edge CTS3 & Diablosport Trinity 2 | Universal
Edge 98203 License Plate Mount Backup Camera For Edge CTS3 & Diablosport Trinity 2 | Universal
Edge 98203 License Plate Mount Backup Camera For Edge CTS3 & Diablosport Trinity 2 | Universal

Edge Products

Edge 98203 License Plate Mount Backup Camera For Edge CTS3 & Diablosport Trinity 2 | Universal

SKU: EDG98203
$299.95
$337.95
SAVE $38
AMP Research 76404-01A OBD-II Splitter | Universal
IN STOCK
AMP Research 76404-01A OBD-II Splitter | Universal
AMP Research 76404-01A OBD-II Splitter | Universal
AMP Research 76404-01A OBD-II Splitter | Universal

AMP Research

AMP Research 76404-01A OBD-II Splitter | Universal

SKU: AMP76404-01A
$119.99
AMP Research 74608-01A BedXtender HD Quick Mount Bracket Kit | Universal
IN STOCK
AMP Research 74608-01A BedXtender HD Quick Mount Bracket Kit | Universal
AMP Research 74608-01A BedXtender HD Quick Mount Bracket Kit | Universal

AMP Research

AMP Research 74608-01A BedXtender HD Quick Mount Bracket Kit | Universal

SKU: AMP74608-01A
$29.99
AMP Research 75115-01A PowerStep Running Boards | 2001-2006 GM
IN STOCK
AMP Research 75115-01A PowerStep Running Boards | 2001-2006 GM

AMP Research

AMP Research 75115-01A PowerStep Running Boards | 2001-2006 GM

SKU: AMP75115-01A
$1,649.99
S&B 84-1001 Mud Flaps for 2.5" inch Hitch Receivers | Universal
S&B 84-1001 Mud Flaps for 2.5" inch Hitch Receivers | Universal
S&B 84-1001 Mud Flaps for 2.5" inch Hitch Receivers | Universal
S&B 84-1001 Mud Flaps for 2.5" inch Hitch Receivers | Universal
S&B 84-1001 Mud Flaps for 2.5" inch Hitch Receivers | Universal

S&B Filters

S&B 84-1001 Mud Flaps for 2.5" inch Hitch Receivers | Universal

SKU: SAB84-1001
$349
AMP Research 75131-01A Light Kit | AMP Steps with New Style Controller | Universal
IN STOCK
AMP Research 75131-01A Light Kit | AMP Steps with New Style Controller | Universal
AMP Research 75131-01A Light Kit | AMP Steps with New Style Controller | Universal
AMP Research 75131-01A Light Kit | AMP Steps with New Style Controller | Universal

AMP Research

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

SKU: AMP75131-01A
$169.99
Husky 57211 Rear Mud Guards | 1999-2006 Silverado 1500/2500HD/3500HD Crew Cab
IN STOCK
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
$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
$59.99
Bestop 76303-35 Supertop 6.5" inch Top | 1999-2017 GM Silverado/Sierra 2500HD/3500HD
Bestop 76303-35 Supertop 6.5" inch Top | 1999-2017 GM Silverado/Sierra 2500HD/3500HD

Bestop

Bestop 76303-35 Supertop 6.5" inch Top | 1999-2017 GM Silverado/Sierra 2500HD/3500HD

SKU: BST76303-35
$999.99
ADD C9988320001NA Overland Rack | Universal
ADD C9988320001NA Overland Rack | Universal
ADD C9988320001NA Overland Rack | Universal
ADD C9988320001NA Overland Rack | Universal
ADD C9988320001NA Overland Rack | Universal

Addictive Desert Designs

ADD C9988320001NA Overland Rack | Universal

SKU: ADDC9988320001NA
$2,998.98
AMP Research 75400-01A Bed Step 2 | 1999-2014 GM Silverado/Sierra 1500/2500HD/3500HD
IN STOCK
AMP Research 75400-01A Bed Step 2 | 1999-2014 GM Silverado/Sierra 1500/2500HD/3500HD
AMP Research 75400-01A Bed Step 2 | 1999-2014 GM Silverado/Sierra 1500/2500HD/3500HD

AMP Research

AMP Research 75400-01A Bed Step 2 | 1999-2014 GM Silverado/Sierra 1500/2500HD/3500HD

SKU: AMP75400-01A
$329.99
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
T-Rex 51200 Upper Class Mesh Grille | 2003-2006 Sierra 1500/2500HD/3500HD
T-Rex 51200 Upper Class Mesh Grille | 2003-2006 Sierra 1500/2500HD/3500HD

T-Rex Grilles

T-Rex 51200 Upper Class Mesh Grille | 2003-2006 Sierra 1500/2500HD/3500HD

SKU: TRX51200
$589.50
T-Rex 51101 Upper Class Mesh Grille | 2003-2005 Silverado 1500/2500HD/3500HD
T-Rex 51101 Upper Class Mesh Grille | 2003-2005 Silverado 1500/2500HD/3500HD
T-Rex 51101 Upper Class Mesh Grille | 2003-2005 Silverado 1500/2500HD/3500HD
T-Rex 51101 Upper Class Mesh Grille | 2003-2005 Silverado 1500/2500HD/3500HD
T-Rex 51101 Upper Class Mesh Grille | 2003-2005 Silverado 1500/2500HD/3500HD

T-Rex Grilles

T-Rex 51101 Upper Class Mesh Grille | 2003-2005 Silverado 1500/2500HD/3500HD

SKU: TRX51101
$889.50
T-Rex 25202 Bolt-On Bumper/Air Dam Billet Grille Insert | 2003-2006 Sierra 1500/2500HD/3500HD
T-Rex 25202 Bolt-On Bumper/Air Dam Billet Grille Insert | 2003-2006 Sierra 1500/2500HD/3500HD

T-Rex Grilles

T-Rex 25202 Bolt-On Bumper/Air Dam Billet Grille Insert | 2003-2006 Sierra 1500/2500HD/3500HD

SKU: TRX25202
$102.86
Fab Fours CH05-RT1250-1 Red Steel Rear Bumper | 2003-2007 GM Silverado/Sierra 2500HD/3500HD Classic
Fab Fours CH05-RT1250-1 Red Steel Rear Bumper | 2003-2007 GM Silverado/Sierra 2500HD/3500HD Classic

Fab Fours

Fab Fours CH05-RT1250-1 Red Steel Rear Bumper | 2003-2007 GM Silverado/Sierra 2500HD/3500HD Classic

SKU: FAFCH05-RT1250-1
$899.99
Fab Fours CH99-U1250-1 Black Steel Elite Rear Bumper | 1999-2007 GM Silverado/Sierra 2500HD/3500HD Classic
Fab Fours CH99-U1250-1 Black Steel Elite Rear Bumper | 1999-2007 GM Silverado/Sierra 2500HD/3500HD Classic

Fab Fours

Fab Fours CH99-U1250-1 Black Steel Elite Rear Bumper | 1999-2007 GM Silverado/Sierra 2500HD/3500HD Classic

SKU: FAFCH99-U1250-1
$1,039.99
Fab Fours CH99-T1250-1 Black Steel Rear Bumper | 1999-2007 GM Silverado/Sierra 2500HD/3500HD Classic
Fab Fours CH99-T1250-1 Black Steel Rear Bumper | 1999-2007 GM Silverado/Sierra 2500HD/3500HD Classic

Fab Fours

Fab Fours CH99-T1250-1 Black Steel Rear Bumper | 1999-2007 GM Silverado/Sierra 2500HD/3500HD Classic

SKU: FAFCH99-T1250-1
$1,049.99
Fab Fours CH99-W1250-1 Premium Rear Bumper | 1999-2017 GM Silverado/Sierra 2500HD/3500HD Classic
Fab Fours CH99-W1250-1 Premium Rear Bumper | 1999-2017 GM Silverado/Sierra 2500HD/3500HD Classic
Fab Fours CH99-W1250-1 Premium Rear Bumper | 1999-2017 GM Silverado/Sierra 2500HD/3500HD Classic
Fab Fours CH99-W1250-1 Premium Rear Bumper | 1999-2017 GM Silverado/Sierra 2500HD/3500HD Classic

Fab Fours

Fab Fours CH99-W1250-1 Premium Rear Bumper | 1999-2017 GM Silverado/Sierra 2500HD/3500HD Classic

SKU: FAFCH99-W1250-1
$1,719.99
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

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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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