Utility Trailer Light Wiring Diagram and Required Parts
Updated 02/24/2015 | Published 02/21/2015 >
Products Featured in This Question
Question:
Looking for a wiring diagram and all parts needed to install new lights and wiring on my old utility trailer - 12ft deck, no brakes.
asked by: Ed
Expert Reply:
I have attached two basic trailer light wiring diagrams of utility trailers for you to check out. The difference between the two diagrams is the type of wiring harness that is being used. Diagram 1 shows a traditional wiring layout with jumper wires to provide running light functions for both sides of the trailer and Diagram 2 shows a wishbone harness. The wishbone harness has two running light wires, one for each side of the trailer. Diagram 2 is the preferred method and it is more common on newer trailers and new tail light kits.
The Optronics Trailer Tail Light Kit, # TL29BK, uses a 25ft wishbone style harness, which is more than enough wire for your trailer. This kit also comes with two clearance lights, two tail lights, and a license plate bracket.
If you would prefer LED lights, check out the Trailer Tail Light Kit, # TL16RK. This kit also includes all parts needed to complete the installation and the wishbone harness.
The typical parts breakdown for a utility trailer is as follows
Right hand tail light ( # ST8RB or # STL8RB for LED)
Left hand tail light ( # ST9RB or # STL9RB for LED)
Two clearance lights ( # MC32AB or # MCL32AB for LED)
4-way flat wiring harness ( # W002230)
Deluxe Wiring Installation Kit - Includes all necessary hardware ( # HM51020)
I have attached a link to our trailer lights page for you to check out. I have also attached installation videos that show how to install tail light wiring and a tail light kit on a utility trailer.
Product Page this Question was Asked From
Standard Trailer Light Kit with 25' Wire Harness
- Trailer Lights
- Tail Lights
- Brake/Tail/Turn
- License Plate
- Marker
- Square
- Surface Mount
- Non-Submersible Lights
- Incandescent Light
- 5L x 4-1/2W Inch
- Amber
- Red
- Optronics
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Search Results: safety chain
- Q&A: What Kind Of Grease Do The TruRyde Trailer Idler Hub Assemblies TRU28AV Use?
- Search Results: 175/80~13 trailer tires and wheels
- Shop: Trailer Hitch
- Search Results: triple lip seal
- Search Results: idler hub
- Search Results: bk2 100 bearing kit
- Shop: TecNiq Tri Bar Heavy Duty ID Bar - 16.5" - Red Lens
- Shop: Replacement Amber Lens for Optronics MC32 or MCL32 Series Clearance or Side Marker Trailer Lights
- Shop: TecNiq Low Profile Over 80" ID Bar - 15.5" - Red Lens
- Shop: ThinLine LED Clearance or Side Marker Light - Submersible - 2 Diodes - Rectangle - Red Lens
- Shop: TecNiq Heavy Duty Marker Light - 2" - Oval - Amber
- Shop: Kenda Karrier KR53 ST175/80R13 Radial Trailer Tire with 13" Silver Mod Wheel - 5 on 4-1/2
- Shop: Buyers Products 3/16" x 48" Class 2 Trailer Safety Chain with 2 Quick Link Connectors
- Q&A: What Brand and Color Grease is Used on the 13511 CE Smith Trailer Hub Assembly
- Search Results: trailer lights
- Search Results: peterson trailer lights
- Q&A: Availability of Side Replacement Lens # 440-15R Left Side
- Shop: Vehicle Tow Bar Wiring
- Video: Optronics Combination Trailer Tail Light Review
- Video: All About the Grease Seal
- Q&A: How to Test Brake Controller without Trailer Connected
- Article: Replacing the Bearing, Races and Seals on a Trailer Hub
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Trailer Wiring
- Article: Trailer Wiring Diagrams
- Video: Firestone Ride-Rite Air Bags with Easy Mount Compressor Feature Breakdown
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Video: How to Choose a Trailer Brake Controller





