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Diode Dynamics LED Sequential Side Markers - Amber GMC Sierra 2020-2021
$399.95
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.

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.

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.

Reliability. 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.

Experience. After over a decade in business, Diode Dynamics is the most trusted name in automotive LED lighting. Unlike all other LED distributors, we assemble and engineer products in the United States, for high quality and fast time-to-market of the newest and brightest LED technologies. We pride ourselves in offering only quality LED products, that will exceed your expectations. Please contact us if you'd like to discuss your lighting project!

Options

All sidemarkers illuminate in bright amber color, but there are three colors of lenses. Choose the one that fits your style!

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.)

Features:
  • Plug-and-play replacement for 2020+ GMC Sierra HD 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
Specifications
  • Measured Lumens: 30 lm
  • Power (watts): 1.3
  • Operating Voltage: 9-16V
  • Current (amps @ 12.8V): 0.95
  • Operating Temperature: -40C to 85C (-40F to 185F)
  • LED Emitter: Mini SMD
  • Connector(s): OEM-Size Plug and Play
  • Driver Features: Internal, Constant Current
  • Materials: ABS Base, PMMA Lens
  • Compliance Ratings: SAE J575 Durability Test
What's Included

In the Box:

Standard
  • 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
Fitment:
  • GMC Sierra 2020-2022
Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Diode Dynamics Banner

Who is Diode Dynamics?

Diode Dynamics started back in 2006 by Paul McCain. It started as a hobby. And using some parts from Radioshack, he was able to create some LED accent lighting which he sold to some of his friends. 

From then on, the company kept on growing to offer more products and employ more people as they progressed. Today, the company is recognized as one of the most reputable LED light manufacturers in the market offering replacement LEDs, Full LED assemblies, multicolor accents and special unique modules.

From Importers to Manufacturers

During its early days, Diode Dynamics was just rebranding LED lights from overseas, but as they realize, they could create something better. So from then on, they manufacture their own products and have moved into a bigger facility with their design engineer. The company has its own light tunnel to measure beam patterns and various testbeds that ensures that their product is durable to handle whatever weather condition it is subjected to. 

Driven by their passion, Diode Dynamics has become the largest specialty application aftermarket lighting manufacturer in the US.

Purchase Diode Dynamics Products at Vivid Racing

LED lights have come a long way since it was first introduced in the market. A lot of companies offer LED lights, but only a few can provide top-notch products that do not only perform well but last for a long time. Diode Dynamic is a brand that has all of these, and has been trusted by various enthusiasts for more than a decade. If quality lighting is what you are looking for, then Diode dynamics are for you. Visit Vivid Racing and see the list of their products that would fit your needs.

Satisfaction Guarantee

At Diode Dynamics, we want to ensure every customer is satisfied with their purchase. Therefore, we offer a straightforward satisfaction guarantee: If you aren't satisfied with your purchase, for any reason, just contact us within 30 days of your purchase and we will arrange a refund of your purchase price, or exchange the items with no hassle.

All Products: 3-Year Replacement Limited Warranty

Diode Dynamics carries a 3-year limited warranty on all products, for manufacturing defects or product failure. If you have an issue with any product, we will diagnose the issue with you, and you may be required to answer questions or assist in the diagnosis. If Diode Dynamics determines that your product is defective in material or workmanship, Diode Dynamics will issue an RMA number. An RMA number must be issued before any items are returned.

For approved warranty claims, Diode Dynamics will replace the defective product with the same product or, if it has been discontinued, one comparable in performance and value.

Diode Dynamics product warranty is limited to product replacement only. Diode Dynamics does not offer compensation or coverage of installation labor or time that may be required for replacement of warranty items.

U.S. Customers: All initial shipping costs are covered by Diode Dynamics. In most cases, you will immediately receive the new products with a return label. However, in some cases, you may need to use a provided return label to send back items first. Diode Dynamics will provide one free return label per order. You may return any number of items from the order in one box using the free shipping label. However, you will be responsible for return shipping costs for any other separate returns from the same order.

International Customers: You are responsible for return shipping costs, although Diode Dynamics will cover shipping costs for the replacement. You must return defective products before a replacement can be sent.

Select Products: 8-Year Limited Warranty

In addition to the above 3-Year Replacement Limited Warranty, Diode Dynamics carries an 8-year Limited Warranty on select products. Currently, this includes and is limited to all Stage Series products.

After 3 years of Replacement Limited Warranty, Diode Dynamics will continue to warrant that select products are free of defects for up to 8 years from when the product was ordered. These products must be returned at the customer's expense to Diode Dynamics, for inspection, and will be replaced or repaired, at the sole discretion of Diode Dynamics. Shipping back to the customer will be covered by Diode Dynamics.

Free Support Forever

Diode Dynamics always provides free support and assistance to any customer. If your warranty has expired, you will continue to receive free service, and we will assist you in determining a solution or possible repair to any issues you might be having with our products.

Stipulations
All schedules are based on the number of days between original purchase date and receipt of RMA information by Diode Dynamics. All warranties are non-transferable. Warranty terms and policies are subject to change without notice.

All warranties, expressed or implied, are void if our warranty claim department determines that there is sufficient evidence of one or more of the following:
  • Negligence: Improper installation or improper use, including using or installing any product in a manner not specified by Diode Dynamics, or damage caused by improper installation.
  • Abuse: Damage beyond the limits of "normal wear and tear."
  • Unauthorized Repair: Repair service performed or attempted by an unauthorized party.
  • Unauthorized Dealer: Purchase of items through any unauthorized party.
Product Modifications
We understand that some products may be modified in the course of installation or use by the customer to suit a particular need. However, opening, disassembling, cutting wires, or otherwise modifying any product in a manner not specified by Diode Dynamics will void the product warranty.

For modifications to wiring, electrical components, or connectors, our staff will assist as possible, but is trained to support problems that arise in the course of standard use, without modification. Product instructions and installation guidance should be followed as written.

Replacing lenses on lightbars will void the 3-year limited replacement warranty. However, the 8-year limited warranty will be upheld and in effect. In the case of moisture intrusion, you may be required to open and re-seal the lamp yourself. If issues persist, we may require that the lightbar is returned for repair.
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Things
Sale price None
Wholesale price $330.36
Shipping Weight: 4.68
Length: 14
Width: 10
Height: 5
Product Added At Tuesday 19 July, 2022
Product Modified At Thursday 10 July, 2025
Imported By ETLOverride
Last Edited By vendordata@vividracing.com
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Emissions Info
Carb Approved -
Carb Number -
Epa Status N/A
Prop65 Yes
Carb Required -
Vendors
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Vendor Inv Cost Retail Jobber MAP Core Updated
Diode Dynamics $279.97 $399.95 $319.96 $399.95 ? 2025-07-10 18:32:37

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This item is available for direct shipping from the manufacturer. Please verify stock availability with the manufacturer. Once confirmed, you can place an order through [Meyer Distributing], who will arrange for dropshipping from the manufacturer directly to our customer.

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