Partsam Square Trailer Tail Light Mounting Box Set Black — Left & Right Heavy-Duty Steel for <80" Trailers

Partsam 1 Set Square Trailer Tail Light Mounting Boxes are a heavy-duty left and right steel housing plus a license plate bracket, built to protect and mount square LED trailer lights on vehicles under 80".

This kit provides a rugged, weather-resistant mounting solution for square LED tail lights on trailers, trucks, boats, RVs and more. Constructed from S45C (1045) 45-gauge carbon steel and finished in durable black paint, the set includes both left and right light boxes, a license plate bracket and the necessary screws for installation. The parts are sized to fit most common square LED trailer lights and offer reinforced edges to protect lamps from impacts, road debris and harsh marine or road environments.

How do these mounting boxes protect square LED trailer lights?

The solid S45C 1045 steel construction gives the housings strength and rigidity that plastic can’t match, helping absorb shocks and reduce bending. The black painted finish adds corrosion resistance while maintaining a low-profile look that blends with most trailers.

• 45-gauge S45C 1045 heavy-duty carbon steel resists deformation
• Painted black finish helps prevent rust and chips
• Enclosed edges shield lens from direct impacts and road spray
• Pre-drilled holes align with common square LED light dimensions

Will this set fit my trailer or vehicle under 80"?

The kit is sized and drilled to accept most square LED trailer lights commonly used on trailers, campers and small trucks under 80" in width. It is compatible with a wide variety of vehicles including utility trailers, boat trailers, campers, small trucks, and specialty equipment.

• Dimensions: main box 6.3" x 5.5" x 3.15" for common square lights
• License plate bracket sized 9.05" x 1.1" x 0.04" for easy mounting
• Works with LED square tail lights used on trailers and RVs
• Includes left and right housings plus mounting screws for quick fit

How easy is installation and what hardware comes with the set?

Installation is straightforward for anyone comfortable with basic trailer wiring and screw-mounted lamp assemblies. The product ships with both left and right mounting boxes, a license plate bracket and screws, so you get a complete mounting solution without searching for extra parts.

• Pre-punched holes align with standard light mounting patterns
• Supplied screws match the chassis and bracket thickness
• Simple screwdriver and basic wiring tools required for fitment
• Can be retrofitted to existing light wiring and mounting locations

What are the dimensions and material details I should know?

The housings are fabricated from 45-gauge S45C (1045) carbon steel for durability and strength. The main box dimensions and the thin, sturdy license plate bracket were chosen to fit common light sizes while remaining compact and protective.

• Main mounting box: 6.3" x 5.5" x 3.15"
• License plate bracket: 9.05" x 1.1" x 0.04" thickness
• Material: S45C (1045) heavy-duty carbon steel, black painted
• Package includes: 2 mounting boxes (left + right), 1 license plate bracket, screws

Who is this for: Choose this Partsam mounting set if you need a robust, low-profile way to secure square LED tail lights on trailers, campers, small trucks, boat trailers or specialty vehicles. It’s suited to fleet owners, DIY trailer builders and anyone replacing brittle plastic housings with a stronger steel alternative that keeps lights secured and protected during hauling, trailering or marine use.