Popular right now
Lots of people have ordered this item recently.

Selling fast!
Grab yours while you can

Diode Dynamics 20-21 Sierra 2500/3500 LED Sidemarkers HD Smoked Set

Name: Diode Dynamics 20-21 Sierra 2500/3500 LED Sidemarkers HD Smoked Set
Brand: Diode Dynamics
SKU: DIODD5127
Price: 275.95 USD
Availability: InStock

Diode Dynamics | SKU: DIODD5127

$275.95 $299.95

✅ Rated 4.9 Store ⭐⭐⭐⭐⭐
✅ Same day shipping on most items.
✅ Buy Now Pay Later + Secure Checkouts!

Shipping Speed

We ship faster than Amazon Auto on most products. Yes, we are that fast. Same day shipping on most in stock items. Free Shipping over $399

Delivery & Shipping Cost

We offer great rates, upgraded protection and expedited shipping options. Be sure to check your shipping options at checkout to ensure your package is protected.

Free Shipping over $399, under $399 only $13.99 for the entire cart regardless of amount. Protection is only $14.99 regardless of cart size.

Price Match & Best Price Policy

Do you see a better price elsewhere? Contact us to let us know and we will respond asap. Click here to email us.

Sale pricing ends soon. Dont miss out!

4.9 Rating⭐⭐⭐⭐⭐

10,000+ Customers
SuspensionHouse.com is top rated, trusted store by google, meta, amazon & judge.me

Description

FeaturesPlug-and-play compatible with GMC Sierra HD 2020+ fender lightsDynamic startup sequence with animated effectFully-illuminated housing with dual-lens design for an even glowOptional Sequential turn signal feature with plug-and-play wiring harnessOEM-grade construction and perfect fitmentEngineered and assembled in USAOverviewUpgraded 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.OptionsAmber: 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
2023-2025	GMC	Canyon	AT4
2023-2025	GMC	Canyon	AT4X
2023-2025	GMC	Canyon	Denali
2023-2025	GMC	Canyon	Elevation
2020-2025	GMC	Sierra 2500 HD	AT4
2024-2025	GMC	Sierra 2500 HD	AT4X
2020-2021	GMC	Sierra 2500 HD	Base
2020-2025	GMC	Sierra 2500 HD	Denali
2024-2025	GMC	Sierra 2500 HD	Denali Ultimate
2022-2025	GMC	Sierra 2500 HD	Pro
2020-2025	GMC	Sierra 2500 HD	SLE
2020-2025	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

Reviews (0)

Got Questions?

Let our team advise you. We are happy to help. Send us an email.

Looking for more parts for your vehicle?

Want to see what else we offer, click here. Vehicle Parts Search

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Sale Price Ends

Dont miss out, sale ends soon!

Days

Hours

Minutes

Seconds

Ends September 17, 2025 at 11:59 pm