Partsam Submersible LED Trailer Light Kit — Square Stop/Turn/Tail, 25ft Harness, 15" 3rd Brake Bar (Red/Amber)

Partsam's submersible 12V LED trailer light kit is a complete lighting upgrade that includes square stop/turn/tail lamps, side fender markers, a 15" third brake ID light bar, a 25ft wiring harness and mounting hardware for trailers up to about 80" wide.

This kit bundles everything needed to replace or modernize trailer lighting: two sealed square combination rear lights, six mini oval side markers (two red, four amber), a 15-inch identification brake light bar, a long 25-foot 4-flat wiring harness, a license plate bracket and all required fasteners. Designed for 12V systems, the kit is engineered to improve visibility with multi-function LEDs while resisting moisture and road contaminants so it holds up around boats, snowmobiles, campers and general trailers.

How does this kit improve nighttime and daytime visibility?

The kit uses multiple high-output LEDs arranged for both near-field and distance visibility. Red and white LEDs are combined in the street side lamp for license illumination and wider recognition, while reflectors add passive visibility when lights are off.

• High-bright LED arrays for stop, turn and tail functions
• Separate white LEDs to illuminate the license plate
• Integrated reflectors to boost visibility when lights are off
• Amber and red side markers for lateral recognition

Are these lights water-resistant enough for marine or snow use?

Yes — each lamp is fully sealed to keep water, dust and road grit away from the circuit board. Screws are omitted from the lens face to reduce potential leak points and the housings are built to withstand wet, salty or snowy environments.

• Completely sealed housings prevent water ingress
• Corrosion-resistant mounting hardware included
• Design minimizes lens screw penetration to limit leaks
• Suitable for boats, snowmobiles and exposed trailers

What functions and wiring are included for easy installation?

The kit covers every common trailer lighting role: running lights, brake, turn signals, reverse, side markers, license illumination and a third identification brake light bar. A 25-foot 4-flat wiring harness with plug simplifies hookup and reaches the end of most trailers without extra extensions.

• 2 square combination tail lights (stop/turn/tail/reverse)
• 6 mini oval side fender markers (2 red, 4 amber)
• 15" third brake/ID light bar for central high-mount braking
• 25ft 4-flat wiring harness, license bracket and mounting hardware

How do these lights fit a variety of trailers and vehicles?

The kit is sized and specified for common 12V trailer systems and is suitable for trailers roughly 80 inches wide, give or take. Its modular components and included hardware allow mounting on campers, utility trailers, dump trucks, farm equipment and recreational vehicles.

• Designed for 12V electrical systems found on most trailers
• Fits trailers, campers, trucks, boats and snowmobiles
• Includes universal mounting hardware for straightforward installation
• 25ft harness covers most trailer lengths without splicing

Who is this for: This Partsam kit is aimed at trailer owners, RV enthusiasts, boaters and fleet operators who need a dependable, all-in-one LED lighting solution that boosts visibility and resists moisture and road debris. Choose this set if you want a comprehensive lighting upgrade with long wiring reach and components ready to mount on most 12V trailers around the 80" width range.