These are drop in replacement mirror marker lights for the 2019+ new style GM tow mirrors. These 2019+ style tow mirror lights fit 2019+ Silverado and Sierra style tow mirrors. These lights offer a selection of lighting options, including bright Amber or White LED's, optional forward-facing spot lights, and optional scanning sequential front running light. Offered with a clear lens or smoked lens for a sleek appearance. You can option these lights to be painted to your truck's factory color. We use your VIN and paint code to match the color exactly to your factory paint.

These are plug and play in OEM towing mirrors as long as the lights were properly working prior to installing these. Fitting 2019-2025 Chevy Silverado and GMC Sierra 1500 trucks with towing mirrors, and 2020-2025 Chevrolet Silverado and GMC Sierra 2500/3500 trucks.

FUNCTION EXPLANATION:

Signal Only: The lights will not illuminate with running light. The lights will flash AMBER with turn signal.
Signal Only Sequential: The lights will not illuminate with running light. The lights will flash AMBER with turn signal in a sequential pattern.
Signal & Running Light: The lights will illuminate AMBER with running light. The lights will flash AMBER with turn signal.
Signal & Running Light Sequential: The lights will illuminate AMBER with running light. The lights will flash AMBER with turn signal in a sequential pattern.
Switchback: The lights will illuminate WHITE with running light. The lights will flash AMBER with turn signal.
Switchback Sequential: The lights will illuminate WHITE with running light. The lights will flash AMBER with turn signal in a sequential pattern.

These replace the factory lights which are part numbers 84468924, 84468925, 84468926, 84468927

Vehicle fitment	Fitment note

Other products you might be interested in

S-Series Cab Lights | 2020-2025 Chevy Silverado & GMC Sierra 2500/3500

Bright LED cab lights, sleek design, unmatched quality, offered in a paint-matched finish.

From $ 287.05

2020-2025 GMC Sierra 2500/3500 Fender Lights - Smoked / Frosted

Upgrade your OEM fender lights with bright LEDs and a sleek design, offered in a paint-matched finish.

From $ 219.95

PAINTED

UNPAINTED

WHY SHOULD I PAINT MY MIRROR LIGHTS?

Painting your mirror lights is one of the easiest ways to elevate the look of your truck and bring the whole build together.
It gives you that clean, factory-finished aesthetic to tie your build together and stand out.

Sets your truck apart from the rest, elevating it beyond the typical off-the-lot look.
Ties together other painted or color-matched parts on your truck
Shows a higher level of customization and care in your build

Learn more about custom painting

WHY PAINT WITH BOOST AUTO?

A LEADING PROCESS ✅

At Boost Auto, we take pride in our paint work like it’s going on our own vehicle. We use high-quality automotive paint that’s custom color-matched to OEM specs for a clean, factory look.

Our custom jigs and professional-grade paint booth help us get even coverage on every part, every time. Each part goes through a detailed prep, paint, and curing process to make sure it not only looks great but holds up over time.

Learn more about our painting process

A MASTER PAINTER AT THE HELM

With over 30+ years of painting experience, our team delivers flawless color matches, including VIN-matched factory colors, and smooth, durable finishes.

Expert hands ensure every part is prepped, painted, and cured with precision—giving you custom quality that looks straight from the factory.

FAQ

Name: 2019+ GM Silverado and Sierra Tow Mirror Marker Lights
Brand: Boost Auto Parts
SKU: 5903LT & 5903RT
Price: 104.45 USD
Availability: InStock
Rating: 4.858585858 (99 reviews)

Are these plug and play?

Yes. These are plug in play in any OEM towing mirror that is operating properly prior.

OEM mirrors by default operate as a dim running light and bright signal. If your OEM lights currently operate like this, these lights will be plug and play.

Where can I find my paint code?

The paint code for your truck can be found on the vehicle information sticker on the driver-side door jamb. We've attached an image depicting where the paint code is located on the sticker. The paint code can be found at location 13. If you're unsure of your paint code, simply type your vehicle's color.

Can these be painted to any custom color?

We use your vehicle's VIN and paint code to match exactly the factory color it came with. We do not offer an option to paint these in a different color than what the truck was equipped with from the factory.

Is the price for a set of lights, or one light?

The price is for a SET of lights (one left, one right).

These are exclusively offered by Boost Auto (we designed and developed the tooling), so we do not offer the lights individually because they will not match any other lights on the market.

What is the difference in the light function?

We recommend looking at the dynamic pictures under the product page content to get a better idea. We have recapped the functionality below.

Signal Only: The lights will not illuminate with running light. The lights will flash AMBER with turn signal.

Signal Only Sequential: The lights will not illuminate with running light. The lights will flash AMBER with turn signal in a sequential pattern.

Signal & Running Light: The lights will illuminate AMBER with running light. The lights will flash AMBER with turn signal.

Signal & Running Light Sequential: The lights will illuminate AMBER with running light. The lights will flash AMBER with turn signal in a sequential pattern.

Switchback: The lights will illuminate WHITE with running light. The lights will flash AMBER with turn signal.

Switchback Sequential: The lights will illuminate WHITE with running light. The lights will flash AMBER with turn signal in a sequential pattern.

How long do these take to install?

Installation is quick and simple. Typical installation time is about 20 minutes per side following our installation video.

Can I add the forward facing spot light if I didn't originally have it?

Unfortunately, we do not have an upgrade path to add the forward-facing spot light.

What is the difference between smoked and clear?

The smoked lens is a dark smoked lens with a black plastic backing behind it.

The clear lens is a clear lens with a black plastic backing behind it.

Do these come with a warranty?

Absolutely. All of our products come standard with our 1-year warranty.

Will these work with OEM 2019+ mirrors?

Yes, these are specifically designed to be installed into OEM mirrors.

What makes these the best lights on the market?

First and foremost, these are not marker lights that are cut open and retrofitted with strips. These were designed with the full intent of operating with various functionality and are manufactured on an OEM assembly line.

Retrofitted lights often have fitment issues due to excess glue since the lights originally needed to be split open. These lights are sealed with automated equipment and tight tolerances, therefore fitment issues are non-existent.

These lights use 100% OEM sealed connectors, so moisture will never enter around the connector (retrofitters must use silicone around the connector to try and keep moisture out). These also feature a semi-permeable membrane, so if moisture were to ever get in it has a path out (whereas the competition is 100% sealed, so the moisture will stay).

The other switchback lights on the market just come with three loose wires, and it is up to you to splice on extensions and run wires to the correct functions. Our lights are plug and play.

The competition requires mounting of external switchback modules inside the mirror to control the lights. Our modules are internal to the lights, so no modules need to be mounted anywhere.

What is the main takeaway? These are not retrofitted lights. These are OEM quality lights where no corners have been cut.

What Is the Start-Up Sequence?

Our exclusive Start-Up Sequence is a unique light function that activates anytime the parking lights of your truck are initially turned on. We've included a dynamic image depicting the Start-Up Sequence on our lights.

Please note, the Start-Up Sequence is not currently offered on Clear Lens lights without Spotlights or any lights that are optioned as Signal Only or Sequential Signal Only