Partsam 5X Super Bright Amber Yellow 17LED Cab Marker Lights - DOT

In this review of the Partsam 5X Super Bright Amber Yellow 17LED cab marker lights, the bottom line is simple: these are a practical LED upgrade for heavy duty trucks and trailers that need brighter, faster lighting with lower current draw. The review focuses on fit, brightness and build quality for owners of Kenworth, Peterbilt, Freightliner, Mack and similar rigs, and highlights that while installation is straightforward for many, some models such as Kenworth W900 may require modification before these lights will fit perfectly.

Key Features

• Universal fit: Designed to work on trucks, trailers, tractors, buses and special vehicles, making it a versatile replacement for many marker light jobs.
• LED performance: Uses 17 LEDs that are brighter and light faster than incandescents, improving visibility and response time at the roof line.
• Lower power draw: Draws less current and generates less heat compared with incandescent bulbs, which can reduce strain on your vehicle wiring.
• Compact dimensions: Measures 5 in by 3.74 in and includes a screw hole for mounting, allowing it to match many stock cab marker locations.
• DOT compliant: Meets DOT requirements for marker lighting, so it is suitable for road use where compliance matters.

Who It's For

This product is best for owners of heavy duty trucks and trailers who want a direct LED upgrade from incandescent marker lights, especially those driving Kenworth, Peterbilt, Freightliner, Western Star, International, Mack and Paccar rigs. It suits fleet mechanics and owner-operators who value brighter, faster lighting and lower electrical load.

Those who should look elsewhere are buyers who need a guaranteed bolt-on fit for every cab model without modification; a few customers reported fit issues on older or unusual cab shapes like certain W900B years. Also avoid these if you require included mounting screws or an exact OEM match to original housings.

Pros & Cons

Pros

• Bright, modern LED output that improves visibility over incandescent markers.
• Energy efficient design that reduces current draw and heat buildup.
• Good perceived quality and appearance that many owners say looks great on the cab.
• Reasonable value for converting old incandescent fixtures to LEDs.

Cons

• Fitment can be inconsistent on some models; Kenworth W900 users may need modification to install.
• Mounting screw is not included, so buyers must supply their own fastener.

Specifications

Brand	Partsam
Light type	17 LED amber marker
Compliance	DOT compliant
Dimensions	5 in x 3.74 in
Applications	Trucks, trailers, tractors, buses, boats, special vehicles
Mounting	Pre-drilled hole for screw (screw not included)

Our Verdict

The Partsam 5X 17LED amber cab marker light is a solid, cost effective LED upgrade for many heavy duty trucks and trailers that need brighter, faster lighting with lower electrical load. It offers good build quality and appearance for the price, but buyers should measure their stock marker opening and be prepared to modify the mounting on some cabs like certain W900 variants. Overall it is a practical value choice for fleets and owner-operators wanting LED performance.

Frequently Asked Questions

Will these lights fit my Kenworth W900?
They may fit with modification; some owners report a direct fit while others needed to alter the housing or mounting to secure them properly.

Are mounting screws included?
No, the screw is not included, so plan to supply the appropriate fastener when installing.

Are these DOT compliant for road use?
Yes, the lights are DOT compliant and intended for use as cab marker lights on road vehicles.