Steel Trailer Lights Boxes Kit with 6in Oval Tail Lights - Welded

In this review the focus is on a welded mount trailer light kit built for basic trailer lighting upgrades. The kit is aimed at trailer owners who want a durable, tidy mounting solution with integrated LED lights; its single biggest reason to buy is the bundled convenience of welded steel boxes pre-cut for both 6in oval tail lights and 2in round marker lights, plus matching LED lamps and sealed pigtails so the assembly is ready to install and wire. For someone replacing old housings or fabricating a clean fender mount, this kit cuts fabrication time and gives a weather resistant finish.

Key Features

• Welded steel boxes: Heavy duty steel boxes come pre-welded and powder-coated black to resist weather and provide a rugged mount for trailer lights.
• 6in oval LED tail lights: Flush mount 6in oval tail lights with 10 red LEDs offer bright stop, turn and tail modes using a 3-prong pigtail for reliable signaling.
• 2in round marker lights: Compact 2in diameter marker lights use 4 LEDs and are sealed with a rubber grommet for flush mounting and waterproof performance.
• Wiring pigtails included: The kit includes 3-prong and 2-prong sealed pigtails so lights can be hardwired quickly to a trailer harness without sourcing connectors.
• Pre-cut mounting holes: Boxes arrive with cutouts sized for 6.75in x 2.5in oval lights and 2.25in round marker lights, simplifying alignment and fitment.

Who It's For

This kit is best for DIY trailer owners, small fleet operators, or fabricators who need a ready-made welded mounting solution that looks neat and installs cleanly on trailer fenders or frames. It is particularly useful when the goal is to replace corroded housings and upgrade to LED illumination without designing custom mounts.

Those who should look elsewhere include buyers seeking plug-and-play assemblies that bolt on without welding, and users who require stainless steel or thicker-gauge metal for extreme heavy-duty or saltwater use; weld quality and metal thickness received mixed feedback and may not meet every heavy-use scenario.

Pros & Cons

Pros

• Complete kit with welded boxes, oval tail lights, marker lights, grommets and sealed pigtails for straightforward installation.
• Powder-coated finish improves corrosion resistance and provides a finished, rugged appearance.
• LED lamps are bright and energy efficient, improving visibility for stop, turn and running lights.
• Pre-cut holes save time during mounting and ensure proper fit for the included lights.

Cons

• Some customers report mixed metal thickness and occasional concerns about weld quality, so heavy structural use may expose limitations.
• Lights are a basic waterproof LED design; long-term durability can vary and some users reported earlier failures.

Specifications

Mounting box dimensions	8.78in L x 3.92in H x 3.82in W
Oval tail light cutout	6.75in x 2.5in (grommet mount)
Round marker light cutout	2.25in round
6in oval tail light size	7.25in L x 3.1in W; 10 red LEDs
2in round marker light size	2in diameter LED, 4 LEDs; outer dia 2.5in with grommet
Wiring	3-prong pigtails for oval (white ground, red stop/turn, black tail); 2-prong pigtails for markers (black ground, red positive)

Our Verdict

This welded mount steel box kit delivers practical value for trailer owners seeking an integrated mounting and LED lighting solution; it reduces fabrication time and provides bright, sealed lights with included pigtails. It represents good value for routine trailer repairs and upgrades, though buyers who need heavier gauge metal or guaranteed long-term lamp life should verify weld and build expectations before purchase.

Frequently Asked Questions

Are the lights waterproof?
Yes, the oval and round LED lights are described as waterproof and come with rubber grommets for a sealed flush mount.

What wires are which on the oval tail lights?
For the 6in oval lights white is ground, red is high mode for stop/turn/brake, and black is low mode for tail running lights.

How are the boxes installed?
The boxes can be welded or bolted to the trailer frame after hardwiring the included pigtails to the trailer harness.