Replacement Trailer Wiring Harness For a Boat Trailer Using a 5-Way Flat Connector
Updated 10/24/2022 | Published 10/23/2022 >
Products Featured in This Question
Question:
I have a boat trailer I need to replace the wires getting old. The problem I am seeing is I have a 5 plug end but I have ten wires coming to it. Can’t find this exact piece anywhere can you help. I do use a round adapter to connect to ram 1500 if that helps?
asked by: James W
Expert Reply:
Currently the only wiring harnesses we have with a 5-way flat connector are like the 25 Ft 5-Way Trailer Wiring Harness # A25W5B and 40 FT Harness # A40W5B. These harnesses use 6 wires coming from the connector. It has a short 5' blue wire to run to the surge brake electric lockout, a short 30" ground wire to attach to the trailer frame, 2 brown wires for the running lights on either side of the trailer, a green wire for the passenger brake/turn signal and a yellow wire for the drivers brake/turn signal. You harness having the 10 wires is likely due to running ground wires to each individual circuit rather than using the trailers frame to carry the ground circuit.
If you prefer to not use your frame as a ground source you will need to run additional ground wires with the other wiring and have it all connect on the harness.
Product Page this Question was Asked From
25 Ft 5-Way Trailer Wiring Harness - Wishbone Style - 30" Ground - 5' Auxiliary Wire
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- No Converter
- Universal Fit
- 5 Flat
- Plug and Lead
- Splice-In
- Optronics
more information >
Continue Researching
- Shop: Trailer Wiring
- Shop: 40 Ft 5-Way Trailer Wiring Harness - Wishbone Style - 30" Ground - 5' Auxiliary Wire
- Shop: 25 Ft 5-Way Trailer Wiring Harness - Wishbone Style - 30" Ground - 5' Auxiliary Wire
- Shop: Optronics 35 ft. Wishbone 5-Way Trailer Harness with 30" Ground and 5 ft. Blue Wire
- Video: 2023 Ford F-150 EcoHitch Hidden Front Mount Trailer Hitch Receiver: Complete Installation
- Search Results: peterson trailer lights
- Search Results: saftey chain
- Video: Detailed Breakdown of the 40 Ft 5-Way Trailer Wiring Harness
- Q&A: Replacing 5-Way on Trailer that Has 8 Wires
- Video: Hands-On with the Peterson Clearance and Side Marker Trailer Light
- Shop: Curt Front Mount Trailer Hitch Receiver - Custom Fit - 2"
- Shop: Optronics Fleet LED Trailer Tail Lights w/ Grommets - Stop,Turn,Tail - Submersible - Oval - Qty 2
- Video: What to Know About the 25 Ft 5-Way Trailer Wiring Harness
- Shop: Peterson Clearance and Side Marker Trailer Light - Submersible - Incandescent - Red Lens
- Shop: Curt Front Mount Trailer Hitch Skid Shield
- Video: Feature Breakdown: Hopkins Endurance 5-Way Flat Trailer Connector
- Video: All You Need to Know About the Hopkins Endurance 5-Way Flat Trailer Connector
- Video: All About the Deka Heat Shrink Butt Connector
- Q&A: Replacement 2-1/2 Inch Round Marker Light on Triton Trailers Elite WCII Personal Watercraft Trailer
- Q&A: Can 5-Way with 6 Wires be Ran to 5-Way with 5 Wires
- Q&A: When is it Recommended To Use Dielectric Grease When Wiring
- Q&A: Why Does Trailer 5-Way part # A25W5B Have 6 Wires
- Q&A: Old Trailer Wiring 5-Way had 6 Wires But New 5-Way Has 5 Wires
- Q&A: Will the ST70RB and the STL72RB Both Fit on the Same Sized Light Housing?
- Article: My Trailer Hitch Doesn't Fit
- Search Results: saftey cables
- Search Results: trailer winch
- Search Results: safety cable
- Search Results: safety chain
- Shop: Vehicle Tow Bar Wiring

