Upgraded Styling. If you're looking to give your
GMC Sierra 2500/3500 an upgrade in styling and appearance, this is the perfect way to do it! 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.
Amber: Also called OEM, these match your original fender lights, and are DOT/SAE compliant in both illumination and lens color.
Smoked: A dark, blacked-out appearance that blends nicely with the factory fender.
(May not meet compliance requirements in your region.)
Clear: These are clear in color, but still have the retroreflector optics.
(May not meet compliance requirements in your region.)
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.
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.
OEM Grade. Unlike other
sidemarkers on the market, these
sidemarkers were designed for OEM standards of quality, using automotive-grade plastic materials, UV-stable lenses, and quality connectors. The dual-lens design uses an inner diffusing lens combined with an outer lens, for an even, uniform glow. The units themselves are designed directly from original CAD data for a perfect fit, and use OEM-grade connectors that plug right into the factory socket.
- Four (4) replacement sidemarkers
- Ten (10) fender clips
Sequential
- Four (4) replacement sidemarkers
- Two (2) wiring harnesses
- Ten (10) fender clips
- Four (4) rubber plugs
These LEDs are designed with newer constant-current circuitry and transient voltage protection. These features, found in factory-installed lighting components, protect the circuit over time, ensuring years of flicker-free performance. They also include a breather vent, to prevent pressure buildup and maintain a strong weathertight seal for years to come.
Diode Dynamics LED Sidemarkers for the 2020+ GMC Sierra HD are proudly assembled in the U.S.A, and are backed by a 3-year warranty.
If you have any questions, please don't hesitate to post, PM, or email
[email protected].
PM us for the free-shipping code (U.S. forum members only)
Thanks for looking,
John C.
Diode Dynamics
