Optronics 40ft 5-Pin Trailer Wiring Harness - Wishbone Style - 30" Ground - 5' Aux Wire

Optronics 40ft 5-Pin Trailer Wiring Harness - Wishbone Style - 30" Ground - 5' Aux Wire

Part Number


  • Standard 5-pin flat connector for easy installation
  • 5ft auxiliary wire for marine trailers with brakes
  • Color coded wires for correct installation
  • Wishbone-style wiring harness - no jumper required
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$28.99 ea.
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Use the Optronics 40-foot 5-pin trailer wiring harness to supply power to stop, turn, and tail lights found on marine trailers, horse trailers, toy haulers, and cargo trailers. The trailer harness has a standard 5-flat connector plug for 5-way trailer lights and a 30-inch ground wire. The wishbone harness is split with distinct tail light wires on each side of the trailer for easy installation without a jumper wire. The 5-foot auxiliary wire (blue) links to the backup light circuit and disengages surge brakes on marine trailers when driving in reverse.

Product Details:

  • 20 AWG trailer harness
  • 12–24 VDC
  • Weatherproof rated
  • 3-year warranty


  • Boat Trailer Tail Lights
  • Enclosed Trailers
  • Tiny House Trailers
  • Trailers
3 Years
3 Years
Super Bright LEDs, Inc. offers a 3-year warranty to protect against manufacturer defects and malfunctions. If you experience failure of an LED or other component not caused by negligence, abuse, unauthorized repair or disassembly, we will replace the product within the warranty period. In the case the exact product is no longer available, a gift card for the value of the original purchase price will be provided. Read More


Ambient Operating Temperature -30~+105 °C (-22~+221 °F)
Brand Optronics
Environmental Rating Weatherproof
Input Connection Type 5-Pin Flat Connector
Number of Conductors 5 Conductors
Product Material(s) Copper, Polyvinyl Chloride (PVC)
Wire Gauge 20 AWG
Wire Length 40 ft (12.2 m)
Print Specifications

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