Mynoway LED Side Marker Lights for GMC Sierra 2500HD/3500HD 2020–2025 — 4pc Smoked Lens White LEDs, Plug-and-Play, IP67

Mynoway 4-piece smoked lens LED side marker lamp kit upgrades front and rear fender markers on 2020–2025 Sierra 2500HD and 3500HD trucks with brighter, plug-and-play white LEDs.

These direct-replacement side marker lights are engineered to match the mounting points and electrical connections of GMC Sierra 2500HD and 3500HD models from 2020 through 2025. Each kit contains two front and two rear smoked-lens housings populated with high-output SMD LEDs that deliver a crisp white illumination while preserving a low current draw and an OEM-like fit. The assembly is IP67 waterproof and meets DOT/SAE requirements for street legal use in North America.

How much brighter are these LED side markers than the factory bulbs?

The Mynoway side markers use 144 high-power SMD LEDs per set to create a concentrated, laser-like strip of light that outperforms incandescent bulbs. Expect a much clearer, more visible profile light at night and during poor visibility conditions without increasing electrical load.

• Approximately 5x brighter than original incandescent markers
• High-efficiency SMD diodes for reduced power consumption
• Consistent white light output for improved visibility

Will these fit my Sierra without modifications?

Yes — the kit is designed as a direct plug-and-play replacement for 2020–2025 Sierra 2500HD and 3500HD fender side markers. No cutting, splicing, or rewiring is required; the housings align with factory mounting points for a clean installation.

• OEM-compatible connectors and bolt pattern
• Simple remove-and-replace process takes minutes per side
• No adapters or harnesses needed for standard factory sockets

What are the durability and legal standards for these lamps?

The housings are IP67-rated to resist water and dust, and the lights are DOT/SAE approved for road use in North America. The smoked lens provides a modern aesthetic while remaining compliant with marker light regulations when installed as intended.

• IP67 waterproof rating for wet conditions and washdowns
• DOT/SAE approval ensures street legality
• Durable LED chips with solid-state reliability over time

How do these lights change the look and safety of my truck?

The smoked lens plus bright white LED strip gives the Sierra a sleeker, more contemporary appearance while improving side visibility. The upgraded output makes your truck easier to notice from the side, which can enhance conspicuity in traffic and low-light situations.

• Smoked lens for a subtle, cohesive exterior update
• Brighter side illumination increases daytime and nighttime visibility
• Complements factory lighting for a unified look

Who is this for? This Mynoway 4-piece smoked lens LED side marker kit is aimed at owners of 2020–2025 GMC Sierra 2500HD and 3500HD trucks who want a straightforward, reliable upgrade for fender markers. It's ideal for drivers seeking improved side visibility, a refreshed exterior style, and an easy installation that keeps factory fit and function. The kit suits daily drivers, fleet vehicles, and enthusiasts wanting an OEM-style upgrade without extensive modification.