Introducing the GMC Sierra 3500 Side Marker Light Assembly by Diode Dynamics – an LED Sidemarker HD with a sleek Smoked appearance, designed exclusively for the 2020-2021 models. Engineered for precision, this side marker light provides a superior upgrade to the factory fender lights, offering brighter illumination and a unique startup sequence.

The Diode Dynamics LED Sidemarkers are a modern addition to your vehicle that not only enhances its functionality but bolsters its presence on the road. This product features a dynamic startup sequence that begins with an intense amber light at the center, spreading to the sides, adding a vivid touch to your vehicle every time it's activated. Furthermore, the optional sequential turn signal introduces a stylish and functional upgrade. It operates with a simple plug-and-play wiring harness that connects to your headlight connector seamlessly.

Features

• Plug-and-play compatible with GMC Sierra HD 2020+ fender lights
• Dynamic startup sequence with animated effect
• Fully-illuminated housing, with a 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 choose the Amber, Smoked, or Clear lens, these LEDs provide a superior blend of functionality and customization for your GMC Sierra. Should you have any questions, we encourage you to reach out to us directly. We offer expert installation and customization services at both our Austin, Texas and Los Angeles, California area locations. Call us at 512-982-9393 (TX) or 562-981-6800 (CA).

For customers considering purchasing multiple items, please contact us to inquire about shipping discounts. We also offer installation on premises at both of our locations.

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