Partsam 5-Pack 17-LED Amber Cab Marker Roof Running Lights for Trucks — DOT-Style Waterproof

These five amber cab marker lights are built for large trucks such as Peterbilt, Freightliner, Mack and other heavy-duty rigs. Each lamp houses 17 high-efficiency LEDs inside a torpedo-shaped lens and mounts where factory top roof marker lights sit. The sealed, weather-resistant construction and hardwired pigtail leads are intended for long-term exterior use on 12V truck electrical systems.

How do these LED cab marker lights improve on older factory lenses?

Compared with incandescent or worn OEM lenses, the 17-LED design offers more consistent illumination, quicker response and lower current draw. The integrated reflector lens spreads light evenly across the front roofline for better recognition by other drivers without excessive glare.

• 17 bright diodes provide uniform amber illumination.
• Reflective interior lens enhances visibility at distance.
• Lower power consumption than traditional bulbs for electrical longevity.
• DOT-style appearance suitable for many commercial trucks.

Will these lights fit my truck and how easy is installation?

Each lamp measures about 3.7 inches tall by 2.8 inches across, with a hole-to-hole spacing of roughly 2.7 inches to match many torpedo-style marker cutouts. Installation is straightforward for anyone comfortable with basic wiring and removing factory lenses.

• Physical size: 3.7" tall × 2.8" diameter; hole spacing ~2.7".
• Remove factory lens and bolt these into the existing mounting holes.
• Hardwired pigtails: black wire to positive, white to ground; one wire includes a ring terminal.
• Not a plug-and-play socket—basic wiring skills required.

Are these lights weatherproof and durable for heavy-duty use?

The housings are engineered to withstand typical highway conditions, including rain and road spray. Sealed construction keeps moisture out of the LED chamber and maintains consistent output over time when mounted properly.

• Water-resistant sealing for use in wet conditions.
• Sturdy torpedo-style lens resists road debris and vibration.
• Designed for 12V vehicle electrical systems on trucks and trailers.
• Suitable for a wide range of heavy equipment and specialty vehicles.

Who is this for: These Partsam 17-LED amber cab marker lights are intended for truck owners, fleet managers and vocational operators who need a reliable, more visible replacement for worn or inefficient top roof marker lamps. They suit installers comfortable with basic hardwiring and any driver who wants a cleaner, brighter front roofline on Peterbilt, Freightliner, Mack, Western Star and similar heavy-duty trucks.