2020-2025 GM 2500HD/3500HD 6.6L L5P Duramax Exterior Upgrades

Home

2020-2026 GM 2500HD/3500HD Performance Parts and Accessories

Bed Liners

Bed Racks

Bull Bars

Bumpers

Fender Flares

Grilles & Grille Guards

Mud Flaps

Roof Racks

Side Steps

Tonneau Covers

Availability

In Stock 7
Out of Stock 82

Manufacturer

Addictive Desert Designs 5
Agricover 1
AMP Research 14
B&W Trailer hitches 2
BAK Industries 3
BedRug 6
Bushwacker 1
Cognito 1
Edge Products 1
Husky Liners 1
Kleinn Automotive Air Horns 1
Lund 3
Putco 9
Ranch Hand 4
Rhino Rack 5
Rough Country 8
Rugged Liner 2
S&B Filters 3
Truxedo 4
WeatherTech 1
Wehrli Custom Fab 3
Westin 11

Show all Show less

Make

Chevrolet/GMC/GM 4
Ford/Chevrolet/GM/GMC/RAM/Dodge RAM/Universal 12
GM/Chevrolet 14
GM/Chevrolet/GMC 47
GM/GMC 11
GM/GMC/Chevrolet 1

Model

Sierra 11
Silverado 14
Silverado/Sierra 52

Year

2019-2022 1
2019-2025 2
2020-2021 3
2020-2023 7
2020-2025 61
2024-2025 3
Universal 12

Price

$2,998.98

Rating

0-1 70
4+ 2

Loading products...

Filter

89 products

Sort by:

Best selling

Featured

Best selling

Alphabetically, A-Z

Alphabetically, Z-A

Price, low to high

Price, high to low

Date, old to new

Date, new to old

Availability

In Stock 7
Out of Stock 82

Manufacturer

Addictive Desert Designs 5
Agricover 1
AMP Research 14
B&W Trailer hitches 2
BAK Industries 3
BedRug 6
Bushwacker 1
Cognito 1
Edge Products 1
Husky Liners 1
Kleinn Automotive Air Horns 1
Lund 3
Putco 9
Ranch Hand 4
Rhino Rack 5
Rough Country 8
Rugged Liner 2
S&B Filters 3
Truxedo 4
WeatherTech 1
Wehrli Custom Fab 3
Westin 11

Show all Show less

Make

Chevrolet/GMC/GM 4
Ford/Chevrolet/GM/GMC/RAM/Dodge RAM/Universal 12
GM/Chevrolet 14
GM/Chevrolet/GMC 47
GM/GMC 11
GM/GMC/Chevrolet 1

Model

Sierra 11
Silverado 14
Silverado/Sierra 52

Year

2019-2022 1
2019-2025 2
2020-2021 3
2020-2023 7
2020-2025 61
2024-2025 3
Universal 12

Price

$2,998.98

Rating

0-1 70
4+ 2

Rough Country A-G12011-G6M Defender Fender Flares (Titanium Rush) | 2020-2025 GM/GMC Sierra 2500HD/3500HD

Rough Country

Rough Country A-G12011-G6M Defender Fender Flares (Titanium Rush) | 2020-2025 GM/GMC Sierra 2500HD/3500HD

SKU: RCSA-G12011-G6M

Price: $599.95

Rough Country A-G12011-G1K Defender Fender Flares (Stone Blue) | 2020-2025 GM/GMC Sierra 2500HD/3500HD

Rough Country

Rough Country A-G12011-G1K Defender Fender Flares (Stone Blue) | 2020-2025 GM/GMC Sierra 2500HD/3500HD

SKU: RCSA-G12011-G1K

Price: $599.95

Rough Country F-G12011A-G6M Pocket Fender Flares (Titanium Rush) | 2020-2025 GM/GMC Sierra 2500HD/3500HD

Rough Country

Rough Country F-G12011A-G6M Pocket Fender Flares (Titanium Rush) | 2020-2025 GM/GMC Sierra 2500HD/3500HD

SKU: RCSF-G12011A-G6M

Price: $649.95

Rough Country F-G12011A-GJI Pocket Fender Flares (Dark Sky) | 2020-2025 GM/GMC Sierra 2500HD/3500HD

Rough Country

Rough Country F-G12011A-GJI Pocket Fender Flares (Dark Sky) | 2020-2025 GM/GMC Sierra 2500HD/3500HD

SKU: RCSF-G12011A-GJI

Price: $649.95

Rough Country F-G12011A-GLT Pocket Fender Flares (Dynamic Blue) | 2020-2025 GM/GMC Sierra 2500HD/3500HD

Rough Country

Rough Country F-G12011A-GLT Pocket Fender Flares (Dynamic Blue) | 2020-2025 GM/GMC Sierra 2500HD/3500HD

SKU: RCSF-G12011A-GLT

Price: $649.95

Ranch Hand GGG201BL1C Legend Grille Guard (Front Camera) | 2020-2023 GM/GMC Sierra 2500HD/3500HD

Ranch Hand

Ranch Hand GGG201BL1C Legend Grille Guard (Front Camera) | 2020-2023 GM/GMC Sierra 2500HD/3500HD

SKU: RANGGG201BL1C

Price: $912.74

Ranch Hand GGG201BL1 Legend Grille Guard | 2020-2023 GM/GMC Sierra 2500HD/3500HD

Ranch Hand

Ranch Hand GGG201BL1 Legend Grille Guard | 2020-2023 GM/GMC Sierra 2500HD/3500HD

SKU: RANGGG201BL1

Price: $912.74

Ranch Hand GGC201BL1 Legend Grille Guard | 2020-2023 GM Chevrolet Silverado 2500HD/3500HD

Ranch Hand

Ranch Hand GGC201BL1 Legend Grille Guard | 2020-2023 GM Chevrolet Silverado 2500HD/3500HD

SKU: RANGGC201BL1

Price: $912.74

ADD R270021280103 Bomber HD Rear Bumper with Blind Spot | 2020-2023 GM Silverado/Sierra 2500HD

Addictive Desert Designs

ADD R270021280103 Bomber HD Rear Bumper with Blind Spot | 2020-2023 GM Silverado/Sierra 2500HD

SKU: ADDR270021280103

Price: $1,998.98

Westin 57-93995 HDX Win Mount Grille Guard | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

Westin

Westin 57-93995 HDX Win Mount Grille Guard | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

SKU: WES57-93995

Price: $1,621.99

Westin 57-923995 HDX Winch Mount Modular Grille Guard - Black | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

Westin

Westin 57-923995 HDX Winch Mount Modular Grille Guard - Black | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

SKU: WES57-923995

Price: $1,207.99

Westin 57-3995S HDX Black Steel Grille Guard with Front Sensors | 2020-2025 GM/Chevrolet Silverado 2500HD/3500HD

Westin

Westin 57-3995S HDX Black Steel Grille Guard with Front Sensors | 2020-2025 GM/Chevrolet Silverado 2500HD/3500HD

SKU: WES57-3995S

Price: $1,259.99

B&W PUCP7543WA Cab Protector - White | 2020-2021 GM Silverado/Sierra 2500HD/3500HD

B&W Trailer hitches

B&W PUCP7543WA Cab Protector - White | 2020-2021 GM Silverado/Sierra 2500HD/3500HD

SKU: BNWPUCP7543WA

Price: $899

B&W PUCP7543BA Cab Protector - Black | 2020-2021 GM Silverado/Sierra 2500HD/3500HD

B&W Trailer hitches

B&W PUCP7543BA Cab Protector - Black | 2020-2021 GM Silverado/Sierra 2500HD/3500HD

SKU: BNWPUCP7543BA

Price: $899

Westin 57-3990 HDX Stainless Steel Grille Guard | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

Westin

Westin 57-3990 HDX Stainless Steel Grille Guard | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

SKU: WES57-3990

Price: $2,006.99

Westin 57-3995 HDX Black Steel Grille Guard | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

Westin

Westin 57-3995 HDX Black Steel Grille Guard | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

SKU: WES57-3995

Price: $1,146.99

Westin 57-23990 HDX Stainless Steel Modular Grille Guard | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

Westin

Westin 57-23990 HDX Stainless Steel Modular Grille Guard | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

SKU: WES57-23990

Price: $1,603.99

Westin 40-33995 Sportsman X Grille Guard | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

Westin

Westin 40-33995 Sportsman X Grille Guard | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

SKU: WES40-33995

Price: $1,102.99

Westin 32-3995 Ultimate Bull Bar | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

Westin

Westin 32-3995 Ultimate Bull Bar | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

SKU: WES32-3995

Price: $594.44

Westin 32-3995L Ultimate LED Bull Bar | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

Westin

Westin 32-3995L Ultimate LED Bull Bar | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

SKU: WES32-3995L

Price: $757.68

Westin 31-6020 E-Series Bull Bar (Polished) | 2020-2025 GM Silverado/Sierra 2500HD/3500HD

Westin

Westin 31-6020 E-Series Bull Bar (Polished) | 2020-2025 GM Silverado/Sierra 2500HD/3500HD

SKU: WES31-6020

Price: $642.64

Westin 31-6025 E-Series Bull Bar - Black | 2020-2025 GM Silverado/Sierra 2500HD/3500HD

Westin

Westin 31-6025 E-Series Bull Bar - Black | 2020-2025 GM Silverado/Sierra 2500HD/3500HD

SKU: WES31-6025

Price: $380.49

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

BedRug

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

SKU: BEDTW2X4MAT

Price: $34.63

ACI B1020099 Lomax Hard Tri-Fold Tonneau Cover Matte Black | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.5ft Bed

Agricover

ACI B1020099 Lomax Hard Tri-Fold Tonneau Cover Matte Black | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.5ft Bed

SKU: ACIB1020099

Price: $1,200.20

3 of 4

FREE SHIPPING ON ALL
ORDERS OVER $70

PRICE MATCH GUARANTEE

BUILD NOW, PAY LATER
FINANCING OPTIONS

30-DAY RETURN SATISFACTION GUARANTEE

DIESEL TRUCK EXPERTS STANDING BY

If you've already added on powerful performance mods to your 2020-2025 GM 2500HD/3500HD 6.6L Duramax, it's time to take it's style and functionality to the next level with some premium exterior upgrades. At Alligator Performance, we offer a wide range of aftermarket exterior parts, including side steps, fender flares, grilles, mud flaps, and roof racks, all designed to enhance both the look and utility of your GM Sierra or Silverado 2500HD/3500HD. Whether you're looking to boost your truck's rugged aesthetic with bold fender flares or improve its practicality with a durable roof rack, we have the perfect upgrades to set your truck apart from the crowd. Combine these accessories with some Lighting Upgrades and Suspension Components to create a fully customized, adventure-ready truck that looks as tough as it performs. GM Duramax Fitments: 2020, 2021, 2022, 2023, 2024, 2025 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.

Side Steps
Fender Flares
Mud Flaps

Can We Help You Find Something?

Give us a call: +1-208-719-7400

Chat With Us

2020-2025 GM 2500HD/3500HD 6.6L L5P Duramax Exterior Upgrades

Bed Liners

Bed Racks

Bull Bars

Bumpers

Fender Flares

Grilles & Grille Guards

Mud Flaps

Roof Racks

Side Steps

Tonneau Covers

Loading products...

Rough Country A-G12011-G6M Defender Fender Flares (Titanium Rush) | 2020-2025 GM/GMC Sierra 2500HD/3500HD

Rough Country A-G12011-G1K Defender Fender Flares (Stone Blue) | 2020-2025 GM/GMC Sierra 2500HD/3500HD

Rough Country F-G12011A-G6M Pocket Fender Flares (Titanium Rush) | 2020-2025 GM/GMC Sierra 2500HD/3500HD

Rough Country F-G12011A-GJI Pocket Fender Flares (Dark Sky) | 2020-2025 GM/GMC Sierra 2500HD/3500HD

Rough Country F-G12011A-GLT Pocket Fender Flares (Dynamic Blue) | 2020-2025 GM/GMC Sierra 2500HD/3500HD

Ranch Hand GGG201BL1C Legend Grille Guard (Front Camera) | 2020-2023 GM/GMC Sierra 2500HD/3500HD

Ranch Hand GGG201BL1 Legend Grille Guard | 2020-2023 GM/GMC Sierra 2500HD/3500HD

Ranch Hand GGC201BL1 Legend Grille Guard | 2020-2023 GM Chevrolet Silverado 2500HD/3500HD

ADD R270021280103 Bomber HD Rear Bumper with Blind Spot | 2020-2023 GM Silverado/Sierra 2500HD

Westin 57-93995 HDX Win Mount Grille Guard | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

Westin 57-923995 HDX Winch Mount Modular Grille Guard - Black | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

Westin 57-3995S HDX Black Steel Grille Guard with Front Sensors | 2020-2025 GM/Chevrolet Silverado 2500HD/3500HD

B&W PUCP7543WA Cab Protector - White | 2020-2021 GM Silverado/Sierra 2500HD/3500HD

B&W PUCP7543BA Cab Protector - Black | 2020-2021 GM Silverado/Sierra 2500HD/3500HD

Westin 57-3990 HDX Stainless Steel Grille Guard | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

Westin 57-3995 HDX Black Steel Grille Guard | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

Westin 57-23990 HDX Stainless Steel Modular Grille Guard | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

Westin 40-33995 Sportsman X Grille Guard | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

Westin 32-3995 Ultimate Bull Bar | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

Westin 32-3995L Ultimate LED Bull Bar | 2020-2025 GM Chevrolet Silverado 2500HD/3500HD

Westin 31-6020 E-Series Bull Bar (Polished) | 2020-2025 GM Silverado/Sierra 2500HD/3500HD

Westin 31-6025 E-Series Bull Bar - Black | 2020-2025 GM Silverado/Sierra 2500HD/3500HD

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

ACI B1020099 Lomax Hard Tri-Fold Tonneau Cover Matte Black | 2020-2025 GM Silverado/Sierra 2500HD/3500HD 6.5ft Bed

FREE SHIPPING ON ALL ORDERS OVER $70

PRICE MATCH GUARANTEE

BUILD NOW, PAY LATER FINANCING OPTIONS

30-DAY RETURN SATISFACTION GUARANTEE

DIESEL TRUCK EXPERTS STANDING BY

Can We Help You Find Something?

Follow us

CUSTOMER SERVICE

INFORMATION

TOP CATEGORIES

FREE SHIPPING ON ALL
ORDERS OVER $70

BUILD NOW, PAY LATER
FINANCING OPTIONS