Best Rear Side Marker Light Assemblies of 2026

David Davis Avatar
David Davis
Last Updated: Jan 28, 2026

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

Rear side marker light assemblies are essential components of any vehicle's lighting system. These lights are typically mounted on the rear fender or quarter panel and provide additional illumination to indicate the vehicle's width and position on the road. They are particularly important for larger vehicles, such as trucks and trailers, as they increase visibility and reduce the risk of accidents. Rear side marker light assemblies come in a variety of shapes and sizes, and are available in both LED and traditional bulb options. They are easy to install and can be purchased as individual units or as part of a larger lighting kit.

At a Glance: Our Top Picks

Nilight TL-03 LED Side Marker Lights Cover #TOP 1
Nilight TL-03 LED Side Marker Lights
ftb score rating icon 9.8
Nilight 10PCS 3/4" Mini LED Side Marker Lights Cover #TOP 2
Nilight 10PCS 3/4" Mini LED Side Marker Lights
ftb score rating icon 9.7
Nilight TL-13 10 PCS Amber Red 3.8” 6 LED Marker Lights Cover #TOP 3
Nilight TL-13 10 PCS Amber Red 3.8” 6 LED Marker Lights
ftb score rating icon 9.5

Top 10 Rear Side Marker Light Assemblies

Nilight TL-03 LED Side Marker Lights

TL-03
10pcs Amber
10PCS Amber
Nilight TL-03 LED Side Marker Lights Cover
Nilight TL-03 10 PCS 3/4” Round Clearance LED Front Rear Side Indicator Bullet Marker Light for Truck RV Car Bus Trailer Van Caravan Boat (12V, Amber)

The Nilight LED Marker Lights are designed to enhance your nighttime visibility with their compact size and bright output. Each light features three SMD LEDs that produce 60 lumens, ensuring you stay safe during dark conditions. The surface mount design, accompanied by a rubber grommet, makes installation easy and secure. With a waterproof rating of IP68, these lights are built to last, resisting damage from water and harsh weather. Their versatility allows you to use them on various vehicles, including trucks, RVs, and boats, functioning as clearance or turn signal lights.

What We Like
Very bright illumination
Easy installation
Waterproof design
Compact size
Versatile automotive uses

Nilight 10PCS 3/4" Mini LED Side Marker Lights

TL-02
Red+Amber 10cs
Nilight 10PCS 3/4" Mini LED Side Marker Lights Cover
Nilight 10 PCS 3/4 Inch Round Mini LED Clearance Light LED Front Rear Side Marker Indicator Light Bullet Marker Light for Truck RV Car Bus Trailer Van Caravan Boat (12V, Red+Amber)

The Nilight Mini LED Markers offer bright and compact lighting, perfect for enhancing your vehicle's visibility at night. Each small 3/4-inch light contains three powerful LEDs that produce a clear, 60-lumen glow, helping you stay safe on the road after dark. These lights are easy to install with a surface mount design and come with a 9-inch two-wire setup, making wiring straightforward. Built to last, their waterproof and sealed construction protects against cracks and damage, so you won’t have to worry about replacements. Plus, they fit a wide range of 12V vehicles, including cars, trucks, trailers, and boats, making them a versatile lighting solution for your needs.

What We Like
Easy installation
Bright LED lights
Sturdy wire pigtails
Good value for price
Waterproof construction
#TOP 3

Nilight TL-13 10 PCS Amber Red 3.8” 6 LED Marker Lights

TL-13
Nilight TL-13 10 PCS Amber Red 3.8” 6 LED Marker Lights Cover
Nilight 10 PCS Amber Red 3.8 Inch 6 LED Side Marker Front Rear Indicator Clearance Lamp for 12V Truck Trailer RV Cab Boat Bus Lorry

Nilight LED Marker Lights are an excellent choice for your truck, trailer, RV, boat, or bus. With 6 high-intensity LED lights, they provide excellent brightness of 120LM, ensuring perfect marker lights. These lights are well-sealed, both at the front lens and back wire lead, making them durable and resistant to water and dust. The simple installation process involves a 2-wire connection and easy mounting using the foam tape base provided. The Nilight LED Marker Lights are versatile and widely used, serving as marker lights, clearance lights, and indicator lights. With a 2-year warranty, you can trust in the quality and reliability of these lights.

What We Like
Very bright illumination
Easy installation process
Good value for price
Water-resistant design
Versatile usage options
#TOP 4

Nilight TL-14 LED Marker Clearance Light

TL-14
Amber
Nilight TL-14 LED Marker Clearance Light Cover
Nilight TL-14 10PCS 3.8” 6 Amber Indicator Rear Side Truck Trailer RV Cab Boat Bus Lorry LED Marker Clearance Light

The Nilight TL-14 LED Marker Clearance Light is an excellent choice for those looking for a high-quality marker light for their vehicle. Each light comes with 6 high-intensity LEDs that output a bright 120LM light, making it perfect for use as a marker light. The light is also decently sealed to prevent any damage, and the installation process is simple and straightforward. The light is widely used and is ideal for most 12V trailers, buses, trucks, RVs, boats, and more.

What We Like
Bright LED illumination
Easy installation process
Weather and water resistance
Affordable price
Versatile applications
#TOP 5

Nilight TL-16 LED Marker Light

TL-16
Amber 2Pcs
3.9 inch
Nilight TL-16 LED Marker Light Cover
Nilight 2PCS 3.9 Inch Front Rear Side Marker Lights 3 LED Amber Clearance Indicator Lamp Waterproof Sealed Surface Mounted for 12V Truck Trailer Camper RV

Introducing the Nilight TL-16 LED Marker Light, a perfect solution for your truck, trailer, or any 12V vehicle. With its upgraded LEDs, this marker light provides excellent amber light output, ensuring high visibility on the road. The micro-reflex faceted reflector design enhances the light output and adds an exquisite appearance to your vehicle. Thanks to its highly sealed construction, this marker light is ready to withstand all weather conditions. Installation is a breeze with the simple wiring setup and included screws. Plus, you can enjoy peace of mind with the 2-year warranty offered by Nilight. Upgrade your vehicle with the Nilight Marker Light today!

What We Like
Easy installation process
Bright LED illumination
Weatherproof and durable design
Good value for price
Versatile vehicle compatibility
#TOP 6

Partsam 2PCS 3 LED Truck Trailer Marker Lights

Amber
Partsam 2PCS 3 LED Truck Trailer Marker Lights Cover
Partsam 2PCS 3 LED Truck Trailer Front Rear LED Side Marker Lights [DOT Approved] indicator Lamp Sealed & Waterproof Surface Mounted Installation Amber 3.9"

Partsam 2PCS 3 LED Truck Trailer Marker Lights are versatile and can function as LED marker lights, clearance lights, identification lights, and trailer lights. The lights have waterproof and sealed lenses that make them suitable for left, right, front, and rear roof top clearance lighting. The lights are also compatible with various 12V vehicles like pickups, trucks, trailers, SUVs, caravans, campers, motorhomes, boats, and buses. The product comes with stainless screws for easy installation, and the light size is 98mm x 31mm x 26mm. However, it is hardwired and not plug and play.

What We Like
Can function as LED marker lights, clearance lights, identification lights, and trailer lights
Waterproof and sealed lenses make them suitable for various locations on the vehicle
Compatible with various 12V vehicles
#TOP 7

LED Trailer Fender Marker Lights

Amber, Red
LED Trailer Fender Marker Lights Cover
Partsam 2Pcs RED AMBER LED Trailer Fender Lights Bullet LED Clearance Marker Light Left Right Amber Front Red Rear, DOT Compliant

These LED Trailer Fender Marker Lights by Partsam come in a pre-wired assembly that can be mounted on the top or side of your trailer fender. They are sealed and waterproof with 1 amber front clearance light and 1 red rear clearance light. The amber LED light points towards the front of the trailer to act as a front clearance light while the red LED light faces rearward to act as a rear clearance light. They use a 2-wire design that includes a ground wire and a lead wire for power. These LED lights are durable, attractive, and inexpensive.

What We Like
Pre-wired assembly
Waterproof and sealed
Attractive and inexpensive
#TOP 8

FXC LED Clearence Light for Truck Car Trailer

FXC
5869570855
Red+Amber
FXC LED Clearence Light for Truck Car Trailer Cover
FXC 'Purishion 10x 3/4 in' Round LED Clearence Light Front Rear Side Marker Indicators Light for Truck Car Bus Trailer Van Caravan Boat, Taillight Brake Stop Lamp (12V, Red+Amber)

The FXC LED Clearence Light is a waterproof and durable product that can be used as clearance lamps, side markers or identification lights for various vehicles. It features 3 LED lenses that offer extreme bright light and comes in 3 colors: amber, white and red. The product is easy to install and its universal design makes it compatible with all cars, SUVs, pickups, trucks, trailers and boats. The lamp is SAE P2 PC and DOT approved, and the sealed light ensures waterproof protection. Each item undergoes strict quality control before shipping.

What We Like
Easy to install
Waterproof and durable
Offers extreme bright light
#TOP 9

Nilight TL-33 LED Marker Lights

TL-33
Nilight TL-33 LED Marker Lights Cover
Nilight 4PCS 3.9 Inch 3 Led Truck Trailer Light Front Rear LED Side Marker Lights Clearance Indicator Lamp Waterproof Sealed Surface Mounted LED Marker Light

The Nilight TL-33 LED Marker Lights are a set of 4 waterproof, surface mounted lights that can be used as front, rear, or side marker lights on any 12v vehicle. Upgraded with 3 quality piranha LEDs, the lights have a wide lighting angle and high light intensity. The micro-reflex faceted reflector design adds to the light output and appearance, while the sealed lens and housing make them durable in all weather conditions. Installation is simple with just a black and red wire to connect and flat head screws provided.

What We Like
Can be used as front, rear, or side marker lights on any 12v vehicle
Upgraded with 3 quality piranha LEDs for wider lighting angle and higher light intensity
Micro-reflex faceted reflector design for increased light output and appearance
Sealed lens and housing for durability in all weather conditions
Simple installation with just a black and red wire to connect and flat head screws provided
#TOP 10

PSDRIQQ LED Trailer Marker Lights Kit 20-Pack

DC12-24V LED Side Marker Lights
Amber, Red
PSDRIQQ LED Trailer Marker Lights Kit 20-Pack Cover
PSDRIQQ LED Trailer Lights Kit Front Rear Side Marker Clearance Indicators Light Lamp, 10Pack Amber + 10Pack Red DC12-24V 2.5" Waterproof Universal for RV Camper Truck Van Caravan Boat

The PSDRIQQ LED Trailer Lights offer bright, reliable illumination with two LEDs in each lamp, ensuring you're visible even in daylight or poor weather. These lights work with almost any 12-24V vehicle, making them a versatile choice for trucks, trailers, RVs, boats, and more. They serve many functions such as side markers, indicators, and clearance lights to keep you safe and compliant on the road. With an IP68 waterproof rating and durable build, these lights withstand rain, dust, and shocks, so you can trust them in all conditions. Plus, they are energy-efficient and designed to last up to 100,000 hours, saving you time and money on replacements.

What We Like
High brightness visibility
Wide vehicle compatibility
Multi-functional use
Waterproof and durable
Long lifespan and energy-saving
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is the purpose of side marker lights?

The purpose of side marker lamps is to enable a driver to see another vehicle that is approaching at an angle at night—and to see it early enough that the driver can stop in time to prevent a collision or, at least, slow down to reduce the severity of the collision.

2. Are side marker lights required?

Background. Side marker lamps have been required by FMVSS No. 108 since it was promulgated as one of the initial Federal Motor Vehicles Safety Standards in 1967. The main purpose of side marker lamps is to indicate the overall length of the vehicle.

3. What are side marker lights on a truck?

Marker lights are designed to tell other motorists about the other vehicles on the road. They indicate things like vehicle size, vehicle shape, and direction of travel.

4. Do side marker lights have to be orange?

Color of clearance lamps, side marker lamps, reflectors, and backup lamps. (1) Front clearance lamps and those marker lamps and reflectors mounted on the front or on the side near the front of a vehicle must display or reflect an amber color.

Editor's Notes

During our rear side marker light assembly research, we found 24 rear side marker light assembly products and shortlisted 10 quality products. We collected and analyzed 91,430 customer reviews through our big data system to write the rear side marker light assemblies list. We found that most customers choose rear side marker light assemblies with an average price of $14.90.

The rear side marker light assemblies are available for purchase. We have researched hundreds of brands and picked the top brands of rear side marker light assemblies, including Nilight, Partsam, FXC, PSDRIQQ. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by
David Davis Avatar

David Davis has rich experience as a mechanic and a general repairman in the automotive industry. It has given him plenty of knowledge in automobile repair, auto parts, and all kinds of tools. In his spare time, he enjoys assembling and disassembling parts for cars.