Partsam Trailer Light Box Kit — 6" Oval Red 10-LED Tail Lights + 2" Red 4-LED Side Markers, Welded Steel Housings

The Partsam 2-piece steel trailer light box kit supplies DOT-approved 6" oval tail lights and 2" round side marker LEDs in welded steel housings for durable, weatherproof trailer lighting.

This all-in-one kit combines heavy-gauge welded mounting boxes with bright LED lamps, sealed connectors, and rubber grommets so you can replace or upgrade trailer tail, brake, and clearance lights quickly. The steel housings are powder-coated to resist corrosion and the lights meet DOT sizing and visibility expectations so your trailer's rear and side lighting are reliable in routine use and poor weather.

How bright and visible are these LEDs at night?

The kit uses high-quality LED elements engineered for strong, consistent illumination so other drivers can spot your trailer's outline and stops sooner. LEDs draw less current than incandescent bulbs and reach full brightness instantly, improving response visibility at night.

• 10-LED 6" oval tail lights for clear running, stop, and turn signals
• 4-LED 2" round side marker/clearance lights for profile visibility
• Instant-on LED output for faster visual cueing
• DOT-appropriate size and red lens color for compliance

What makes the steel light boxes durable outdoors?

The welded mounting boxes are made from heavy-duty steel with a black powder coating that helps fend off rust and abrasion. Each lamp and pigtail is sealed and paired with rubber grommets to prevent moisture intrusion where wires pass through the housing.

• Welded steel housings for impact and torsion resistance
• Corrosion-resistant powder coat finish for longer life
• Waterproof sealed lights and connector pigtails
• Rubber grommets protect wiring from chafing and water entry

How easy is installation and what wiring is included?

Installation is straightforward: hardwire each pigtail to the trailer's existing wiring harness, then weld or bolt the steel box to the trailer frame. The kit supplies left and right welded boxes, sealed plug pigtails, and grommets so you have all the core parts to get lights mounted and running.

• Two welded light mount boxes (left and right) ready to attach
• Two 6" oval red LED tail lights with 3-wire sealed pigtails
• Two 2" round red LED side markers with 2-wire sealed pigtails
• Rubber grommets included for each lamp to protect wiring

Will these lights fit different trailer types and functions?

The housings and lamps are designed as universal trailer lighting: use them as tail lights, brake lights, or parking/clearance lights depending on wiring and placement. They suit many trailer and truck applications when mounted to the rear or sides, and the robust steel boxes handle heavy-duty environments.

• Compatible with utility trailers, dump trucks, horse trailers, travel trailers, and more
• Can serve as taillight, brake light, or parking/clearance light
• Mountable on rear, side, top, or bottom frame locations
• DOT-sized red lenses for regulatory alignment

Who is this for? This Partsam kit is ideal for vehicle owners, fleet managers, and DIY trailer builders who need a rugged, weather-resistant lighting upgrade that combines welded steel housings with sealed LED fixtures. Choose this set if you want DOT-sized rear and side illumination, a complete hardware package with pigtails and grommets, and a corrosion-resistant finish for long-term outdoor use.