$299.95
7 in stock
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.
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.
Included in the box:
Four (4) replacement sidemarkers
Ten (10) fender clips
- Modern LED replacement for your factory sidemarker lamp
- Modern LED replacement for your factory sidemarker 
- Plug-and-play installation no modification needed
- OEM-grade retroreflector optics
- Engineered and assembled in USA
- OEM fit-and-finish
- lamp
Description
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.
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.
Included in the box:
Four (4) replacement sidemarkers
Ten (10) fender clips
- Modern LED replacement for your factory sidemarker lamp
- Modern LED replacement for your factory sidemarker 
- Plug-and-play installation no modification needed
- OEM-grade retroreflector optics
- Engineered and assembled in USA
- OEM fit-and-finish
- lamp
Fits
2020 GMC Sierra 2500 HD AT4
2020 GMC Sierra 2500 HD Base
2020 GMC Sierra 2500 HD Denali
2020 GMC Sierra 2500 HD SLE
2020 GMC Sierra 2500 HD SLT
2021 GMC Sierra 2500 HD AT4
2021 GMC Sierra 2500 HD Base
2021 GMC Sierra 2500 HD Denali
2021 GMC Sierra 2500 HD SLE
2021 GMC Sierra 2500 HD SLT
2022 GMC Sierra 2500 HD AT4
2022 GMC Sierra 2500 HD Base
2022 GMC Sierra 2500 HD Denali
2022 GMC Sierra 2500 HD SLE
2022 GMC Sierra 2500 HD SLT
2023 GMC Canyon AT4
2023 GMC Canyon AT4X
2023 GMC Canyon Denali
2023 GMC Canyon Elevation
2023 GMC Sierra 2500 HD AT4
2023 GMC Sierra 2500 HD Denali
2023 GMC Sierra 2500 HD Pro
2023 GMC Sierra 2500 HD SLE
2023 GMC Sierra 2500 HD SLT
2024 GMC Canyon AT4
2024 GMC Canyon AT4X
2024 GMC Canyon Denali
2024 GMC Canyon Elevation
2024 GMC Sierra 2500 HD AT4
2024 GMC Sierra 2500 HD AT4X
2024 GMC Sierra 2500 HD Denali
2024 GMC Sierra 2500 HD Denali Ultimate
2024 GMC Sierra 2500 HD Pro
2024 GMC Sierra 2500 HD SLE
2024 GMC Sierra 2500 HD SLT
2024 GMC Sierra 3500 HD AT4
2024 GMC Sierra 3500 HD Denali
2024 GMC Sierra 3500 HD Denali Ultimate
2024 GMC Sierra 3500 HD Pro
2024 GMC Sierra 3500 HD SLE
2024 GMC Sierra 3500 HD SLT
2025 GMC Canyon AT4
2025 GMC Canyon AT4X
2025 GMC Canyon Denali
2025 GMC Canyon Elevation
2025 GMC Sierra 2500 HD AT4
2025 GMC Sierra 2500 HD AT4X
2025 GMC Sierra 2500 HD Denali
2025 GMC Sierra 2500 HD Denali Ultimate
2025 GMC Sierra 2500 HD Pro
2025 GMC Sierra 2500 HD SLE
2025 GMC Sierra 2500 HD SLT
2025 GMC Sierra 3500 HD AT4
2025 GMC Sierra 3500 HD Denali
2025 GMC Sierra 3500 HD Denali Ultimate
2025 GMC Sierra 3500 HD Pro
2025 GMC Sierra 3500 HD SLE
2025 GMC Sierra 3500 HD SLT
2026 GMC Canyon AT4
2026 GMC Canyon AT4X
2026 GMC Canyon Denali
2026 GMC Canyon Elevation
2026 GMC Sierra 2500 HD AT4
2026 GMC Sierra 2500 HD AT4X
2026 GMC Sierra 2500 HD Denali
2026 GMC Sierra 2500 HD Denali Ultimate
2026 GMC Sierra 2500 HD Pro
2026 GMC Sierra 2500 HD SLE
2026 GMC Sierra 2500 HD SLT
2026 GMC Sierra 3500 HD AT4
2026 GMC Sierra 3500 HD Denali
2026 GMC Sierra 3500 HD Denali Ultimate
2026 GMC Sierra 3500 HD Pro
2026 GMC Sierra 3500 HD SLE
2026 GMC Sierra 3500 HD SLT
Additional information
| Weight | 1.3 lbs |
|---|---|
| Dimensions | 10.4 × 6.6 × 3.8 in |
| air_freight_prohibited | false |
| not_carb_approved | false |
| ltl_freight_required | false |
| prop_65 | Y |
| part_type | automotive |
| epa | N/A |
| carb_acknowledgement_required | false |
| regular_stock | t |
| units_per_sku | 1 |
| upc | 691026130392 |
| brand | Diode Dynamics |
| part_number | DD5127 |
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