Are these DOT/SAE compliant?

The amber lens option is DOT/SAE compliant. The clear and smoked lens options are not.

Do I need any special tools or skills to install these?

No, these are designed for plug-and-play installation, so you should be able to install them with basic hand tools. The optional sequential turn signal feature includes a plug-and-play harness that connects to the headlight connector.

How do I choose between the standard and sequential models?

Both models feature the unique startup sequence. If you want an added animated turn signal, choose the sequential option. It will illuminate in a sequencing amber pattern when you activate your turn signal.

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

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Diode Dynamics

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

Name: Diode Dynamics 20-21 Sierra 2500/3500 HD LED Sidemarkers Clear Set
Brand: Diode Dynamics
Price: 307.15 USD
Availability: InStock

$307.15

Replaces your factory fender lights with brighter, fully-illuminated LEDs. Choose standard or sequential turn signal models.

Key Features

Plug-and-play compatible — simple installation
Dynamic startup sequence — animated lighting effect
Fully-illuminated housing — even light distribution
Dual-lens design — consistent light output
Optional sequential turn signal — adds animated turn signals
Clear lens — retroreflector optics

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more