HERCOO Side Mirror Marker Lights for Silverado/Sierra — Smoke Lens Switchback White & Amber, Sequential LED Plug-and-Play

HERCOO sequential switchback side mirror markers are plug-and-play LED replacement lights that add bright white and dynamic amber turn signaling to compatible Chevy Silverado and GMC Sierra trucks.

These side mirror marker lights are engineered to directly replace factory units on specific Silverado and Sierra models, providing a modern sequential amber turn signal with a white running/marker function. Built from durable polycarbonate with waterproof seals and long-life SMD LEDs, they enhance visibility and give your truck an updated appearance without cutting or splicing wiring.

Will these fit my Silverado or Sierra and how do I confirm compatibility?

These units are designed for direct fitment with factory part numbers and model years listed by the manufacturer, so compatibility is limited to select Chevy and GMC trucks. Check your vehicle year and side mirror part dimensions against the listed fitment range before ordering.

• Compatible models: Chevrolet Silverado 1500 (2016–2018); Silverado 2500 HD/3500 HD (2016–2019)
• GMC models: Sierra 1500/3500 HD (2016–2018); Sierra 2500 HD (2016–2019)
• Replaces factory part numbers 23444105 and 23444106
• Confirm mirror housing shape and connector orientation prior to purchase

How bright and reliable are the HERCOO sequential LEDs?

HERCOO uses high-density 3528 SMD LEDs arranged in a four-row strip to deliver high brightness and a clear sequential amber effect for turn signaling. The polycarbonate housing resists scratching and exposure, while the waterproofing helps maintain consistent performance in varying weather.

• Contains 4 rows of 120pcs 3528 SMD LED beads for strong illumination
• Durable PC material resists fading and scratching
• Waterproof construction for reliable outdoor use
• Sequential amber pattern for clear directional signaling

How difficult is installation and what wiring is required?

Installation is designed to be straightforward: these markers are plug-and-play replacements for the factory units and typically need no cutting or modification. The lights include a two-wire connection (positive and negative); if the lamp doesn’t light, rotating the connector 180° usually resolves polarity issues.

• Direct replacement—no drilling or splicing needed
• Includes two lights per package (driver and passenger side)
• Wiring: positive and negative only; rotate connector if it won’t power
• Works with existing vehicle harness for OEM-like fit

What does the package include and what support is available?

The shipment contains a pair of sequential switchback side mirror marker lamps and basic installation guidance. HERCOO provides a one-year after-sales support window—email their support team if you encounter installation issues or defects starting from the order date.

• Includes 2x sequential switchback side mirror marker lights
• Plug-and-play installation hardware integrated in design
• 1-year after-sales support from date of purchase via email
• Simple polarity fix: rotate connector 180° if unit doesn’t light

Who is this for: Truck owners who want a straightforward, OEM-style upgrade to their Silverado or Sierra’s side mirror lighting—particularly those seeking brighter, more modern turn signals and a crisp white marker light without complex wiring or permanent vehicle modifications. These lights suit owners focused on improved roadside visibility, refreshed vehicle styling, and easy installation using the factory harness.