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Features Plug-and-play compatible with GMC Sierra HD 2020+ fender lights Dynamic startup sequence with animated effect Fully-illuminated housing, with dual-lens design for an even glow Optional Sequential turn signal feature, with plug-and-play wiring harness OEM-grade construction and perfect fitment Engineered and assembled in USA Overview Upgraded Styling. These LED sidemarkers are a plug-and-play replacement for the factory fender lights, illuminating the entire width of the housing for a distinctive look and brighter appearance. Choose from three lens color options to get the look you're after. Unique Startup. Both the standard and sequential models feature a unique startup sequence. Every time the sidemarkers turn on, they illuminate in an intense amber color starting from the center then spreading to either side. Once they are completely illuminated, they gradually return to a running light mode. Sequencing Turn Signal. Our sequential option provides an upgrade in functionality. Anytime you hit your turn signal, the sidemarkers illuminate in a sequencing amber pattern to indicate signaling! The sequential option uses the included plug-and-play harness to power the fender lights using the headlight connector. Options Amber: These match your original sidemarkers, and are DOT/SAE compliant. Smoked: A dark appearance, great on black and grey vehicles. Clear: These are clear in color, but still have the retroreflector optics.

This Part Fits:

Year Make Model Submodel
2023-2026 GMC Canyon AT4
2023-2024,2026 GMC Canyon AT4X
2023-2026 GMC Canyon Denali
2023-2026 GMC Canyon Elevation
2020-2026 GMC Sierra 2500 HD AT4
2024-2026 GMC Sierra 2500 HD AT4X
2020-2021 GMC Sierra 2500 HD Base
2020-2026 GMC Sierra 2500 HD Denali
2024-2026 GMC Sierra 2500 HD Denali Ultimate
2022-2026 GMC Sierra 2500 HD Pro
2020-2026 GMC Sierra 2500 HD SLE
2020-2026 GMC Sierra 2500 HD SLT
2024-2026 GMC Sierra 3500 HD AT4
2024-2026 GMC Sierra 3500 HD Denali
2024-2026 GMC Sierra 3500 HD Denali Ultimate
2024-2026 GMC Sierra 3500 HD Pro
2024-2026 GMC Sierra 3500 HD SLE
2024-2026 GMC Sierra 3500 HD SLT

Diode Dynamics

Diode Dynamics 20-21 Sierra 2500/3500 HD LED Sidemarkers - Amber Set

SKU DIODD5126
$317.95
$317.95
Features Plug-and-play compatible with GMC Sierra HD 2020+ fender lights Dynamic startup sequence with animated effect Fully-illuminated housing, with dual-lens design for an even glow Optional Sequential turn signal feature, with plug-and-play wiring harness OEM-grade construction and perfect fitment Engineered and assembled in USA Overview Upgraded Styling. These LED sidemarkers are a plug-and-play replacement for the factory fender lights, illuminating the entire width of the housing for a distinctive look and brighter appearance. Choose from three lens color options to get the look you're after. Unique Startup. Both the standard and sequential models feature a unique startup sequence. Every time the sidemarkers turn on, they illuminate in an intense amber color starting from the center then spreading to either side. Once they are completely illuminated, they gradually return to a running light mode. Sequencing Turn Signal. Our sequential option provides an upgrade in functionality. Anytime you hit your turn signal, the sidemarkers illuminate in a sequencing amber pattern to indicate signaling! The sequential option uses the included plug-and-play harness to power the fender lights using the headlight connector. Options Amber: These match your original sidemarkers, and are DOT/SAE compliant. Smoked: A dark appearance, great on black and grey vehicles. Clear: These are clear in color, but still have the retroreflector optics.

This Part Fits:

Year Make Model Submodel
2023-2026 GMC Canyon AT4
2023-2024,2026 GMC Canyon AT4X
2023-2026 GMC Canyon Denali
2023-2026 GMC Canyon Elevation
2020-2026 GMC Sierra 2500 HD AT4
2024-2026 GMC Sierra 2500 HD AT4X
2020-2021 GMC Sierra 2500 HD Base
2020-2026 GMC Sierra 2500 HD Denali
2024-2026 GMC Sierra 2500 HD Denali Ultimate
2022-2026 GMC Sierra 2500 HD Pro
2020-2026 GMC Sierra 2500 HD SLE
2020-2026 GMC Sierra 2500 HD SLT
2024-2026 GMC Sierra 3500 HD AT4
2024-2026 GMC Sierra 3500 HD Denali
2024-2026 GMC Sierra 3500 HD Denali Ultimate
2024-2026 GMC Sierra 3500 HD Pro
2024-2026 GMC Sierra 3500 HD SLE
2024-2026 GMC Sierra 3500 HD SLT

Photo - Primary User 8 User 7 User 5 User 6 User 1 Logo Image Logo Image
Photo - Primary User 8 User 7 User 5 User 6 User 1 Logo Image Logo Image
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers
Workshop Approved
Your Build Deserves Better
Trusted by Mechanics & Explorers

Features Plug-and-play compatible with GMC Sierra HD 2020+ fender lights Dynamic startup sequence with animated effect Fully-illuminated housing, with dual-lens design for an even glow Optional Sequential turn signal feature, with plug-and-play wiring harness OEM-grade construction and perfect fitment Engineered and assembled in USA Overview Upgraded Styling. These LED sidemarkers are a plug-and-play replacement for the factory fender lights, illuminating the entire width of the housing for a distinctive look and brighter appearance. Choose from three lens color options to get the look you're after. Unique Startup. Both the standard and sequential models feature a unique startup sequence. Every time the sidemarkers turn on, they illuminate in an intense amber color starting from the center then spreading to either side. Once they are completely illuminated, they gradually return to a running light mode. Sequencing Turn Signal. Our sequential option provides an upgrade in functionality. Anytime you hit your turn signal, the sidemarkers illuminate in a sequencing amber pattern to indicate signaling! The sequential option uses the included plug-and-play harness to power the fender lights using the headlight connector. Options Amber: These match your original sidemarkers, and are DOT/SAE compliant. Smoked: A dark appearance, great on black and grey vehicles. Clear: These are clear in color, but still have the retroreflector optics.

This Part Fits:

Year Make Model Submodel
2023-2026 GMC Canyon AT4
2023-2024,2026 GMC Canyon AT4X
2023-2026 GMC Canyon Denali
2023-2026 GMC Canyon Elevation
2020-2026 GMC Sierra 2500 HD AT4
2024-2026 GMC Sierra 2500 HD AT4X
2020-2021 GMC Sierra 2500 HD Base
2020-2026 GMC Sierra 2500 HD Denali
2024-2026 GMC Sierra 2500 HD Denali Ultimate
2022-2026 GMC Sierra 2500 HD Pro
2020-2026 GMC Sierra 2500 HD SLE
2020-2026 GMC Sierra 2500 HD SLT
2024-2026 GMC Sierra 3500 HD AT4
2024-2026 GMC Sierra 3500 HD Denali
2024-2026 GMC Sierra 3500 HD Denali Ultimate
2024-2026 GMC Sierra 3500 HD Pro
2024-2026 GMC Sierra 3500 HD SLE
2024-2026 GMC Sierra 3500 HD SLT

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