4-Way Wishbone Trailer Wiring Harness with 42" Ground Wire - 40' Long
(31 reviews)
Price: $41.32
In Stock
4-Way Wishbone Trailer Wiring Harness with 42" Ground Wire - 40' Long
Item # A40W42B
Our Price: $41.32
In Stock
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- All Info
- Reviews (31)
- Q & A (0)
- Photos
Optronics Trailer Wiring - A40W42B
- Trailer Connectors
- Trailer End Connector
- 4 Flat
- Plug and Lead
- 31 Feet and Longer
- Optronics
This wiring harness provides a simple, efficient method for rewiring your trailer with a 4-pole flat trailer-end connector. The wishbone-style harness has an extra tail light wire that makes it easier to wire your trailer.
Features:
- Provides simple, efficient method for rewiring your trailer with a 4-pole flat trailer-end connector
- Wishbone design - Y-harness contains an additional brown tail light wire
- Left-side tail light wire is bundled with the yellow left turn/brake wire
- Right-side tail light wire is bundled with the green right turn/brake wire
- 4-Pole flat trailer end connector to connect to your towed vehicle
- 20-Gauge wire
- Wire colors:
- White wire for ground
- Brown wires for tail lights
- Yellow wire for driver's-side stop/turn
- Green wire for passenger's-side stop/turn
Specs:
- Wire length: 40'
- Ground wire length: 42"
Because the brake signal is sent along the same wire as each turn signal, the tail light signal is the only one that needs to be run along both sides of a trailer. This wishbone-style harness (or Y-harness) contains 2 separate tail light wires (brown wires): one bundled with the left turn and brake wire (yellow wire) and one bundled with the right turn and brake wire (green wire). It's the most efficient way to wire your trailer.
A40W42B Optronics 40 Foot 4-Way Wishbone Style Trailer Wiring Harness with 42 Inch Ground Wire
California residents: click here
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
Customer Reviews
4-Way Wishbone Trailer Wiring Harness with 42" Ground Wire - 40' Long - A40W42B
Average Customer Rating: 4.9 out of 5 stars (31 Customer Reviews)
This wiring harness provides a simple, efficient method for rewiring your trailer with a 4-pole flat trailer-end connector. The wishbone-style harness has an extra tail light wire that makes it easier to wire your trailer.by: Wayne03/30/2023
Worked great for my old trailer re wire project.
by: Terry 08/21/2021
I was lucky to find a harness this long.
by: IanS09/04/2019
I have a 24' pontoon trailer. The harness was plenty long to reach all the way to the tail lights, I especially like the protection around the harness at the connector end.
The trailer has been in and out of the water a few times with no consequences.
I would recommend this harness for any one who need to rewire their trailer for a very reasonable cost.
by: Chris11/11/2019
Installed this on a 5x8 enclosed trailer. It was long enough to go down both sides and up the rear and all the way to the upper front marker lights. Cheaper than Amazon too.
by: Fred T04/30/2020
My trailer takes a beating year after year. Replaced all my lights on my utility trailer last year. Lights still look new and all work even sitting in extreme weather.
by: Richard 11/24/2021
Ez install, working perfectly after one year. Would order again if needed!
Richard
11/25/2022
Still perfect, glad I purchased it. Would do it again.
by: Michael 06/21/2021
Fast delivery, good product. I had a hard time finding a wiring harness long enough for my boat trailer, and the 42" ground wire setup had a really nice setup.
by: Scott 09/07/2020
Just what I needed to rewire an old boat trailer while I was replacing all the lights with new waterproof LED lighting.
by: Neil 09/04/2021
In this case the product is a simple wiring harness. What is important is that I needed it quickly and it was delivered on time. My trailer is rewired and back in service.
by: Harold 05/10/2021
Perfect wiring for my trailer
by: Robert10/25/2018
Placed order and within a few days I was able to wire trailer without no problems. They are great people to talk to and help with any questions I had regarding to wiring.
by: Anthony08/03/2019
Made wiring my trailer a breeze!
by: Brad06/30/2018
Quality product, easy installation.
by: Dugo07/04/2020
Great harness! Worked as expected! Thank you!
by: Arlie P05/03/2019
Great price, order shipped same day, part worked perfectly. Can't ask any more than that.
by: Pete 05/05/2021
Ordered what i need and got it quickly
by: Michael03/02/2019
this was what I was lookin for there was no surprises.
by: Danny 08/13/2020
Amazing service, exactly what they said, speedy service and delivery. WOW
by: Melvin 12/07/2021
your shipping was great was set for 10 days and arrived in only two. product was as expected
by: Michael10/17/2019
Just what the doctor ordered!
by: Brian 07/11/2021
Fast and prompt service will buy from you again.
by: David05/17/2019
Easy install works perfect
by: Shana09/11/2019
Great product. Exactly what I wanted.
by: Mike S. - Houston, TX08/22/2019
Fast service and product was as expecte d.
by: Jerry07/18/2018
Excellent and super fast shipping
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31
Show More Reviews
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Do you have a question about this Trailer Wiring?
Info for this part was:
Edited by:
Leah B
Expert Research:
Jameson C
Installed by:
Cole B
Written by:
Amy B
Video Edited:
Chris R
Test Fit:
Shane H
Video by:
Jonathan Y
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Terry
8/22/2022
Its been about a year and the harness is still working good.