Features Plug-and-play compatible with GMC Sierra HD 2024+ 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 |
| 2024-2025 |
GMC |
Sierra 2500 HD |
AT4 |
| 2024-2025 |
GMC |
Sierra 2500 HD |
AT4X |
| 2024-2025 |
GMC |
Sierra 2500 HD |
Denali |
| 2024-2025 |
GMC |
Sierra 2500 HD |
Denali Ultimate |
| 2024-2025 |
GMC |
Sierra 2500 HD |
Pro |
| 2024-2025 |
GMC |
Sierra 2500 HD |
SLE |
| 2024-2025 |
GMC |
Sierra 2500 HD |
SLT |
| 2024-2025 |
GMC |
Sierra 3500 HD |
AT4 |
| 2024-2025 |
GMC |
Sierra 3500 HD |
Denali |
| 2024-2025 |
GMC |
Sierra 3500 HD |
Denali Ultimate |
| 2024-2025 |
GMC |
Sierra 3500 HD |
Pro |
| 2024-2025 |
GMC |
Sierra 3500 HD |
SLE |
| 2024-2025 |
GMC |
Sierra 3500 HD |
SLT |
Diode Dynamics LED Lighting & Automotive Accessories
Upgrade your vehicle with premium Diode Dynamics LED lighting and automotive accessories designed for improved visibility, modern styling, and dependable performance. Diode Dynamics products are built for drivers who want brighter, more efficient lighting upgrades for daily driving, off-road use, work vehicles, and custom builds.
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Whether you are upgrading factory lighting, adding auxiliary lights for trails and job sites, or improving the appearance of your vehicle, Diode Dynamics offers high-quality automotive lighting solutions made to provide long-lasting performance and a noticeable improvement in nighttime visibility.
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