The GMC Sierra HD Side Marker Light Assembly by Diode Dynamics is a high-quality LED sidemarker that offers an upgrade in both function and style for your 2020-2021 GMC Sierra HD. Featuring a clear lens option, these sidemarkers are designed to provide a brighter and more distinctive look compared to factory fender lights.

Made with OEM-grade construction, the Diode Dynamics LED Sidemarkers ensure a perfect fitment for your vehicle. The sidemarkers replace your factory fender lights with a fully-illuminated housing and a dual-lens design for an even glow. A dynamic startup sequence with an animated effect adds uniqueness, illuminating in a striking amber hue that spreads from the center outward before returning to a running light mode. Additionally, the optional sequential turn signal feature offers enhanced functionality, with a sequencing amber pattern to signal your turns. This feature is supported by a plug-and-play wiring harness that connects easily with the headlight connector.

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 the USA

Whether you're looking for an aesthetic upgrade or enhanced functionality, the GMC Sierra HD Side Marker Light Assembly by Diode Dynamics is an excellent choice. Should you have any questions or require installation and customization services, feel free to contact us directly. We have two locations in Austin, Texas and Los Angeles, California, where we can assist you in person or over the phone. You can reach our Texas store at 512-982-9393 or our California location at 562-981-6800. If you're considering purchasing multiple items, please contact us to discuss possible shipping discounts, and remember that professional installation is available on-site at each of our locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov