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Buyers Products Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat

Buyers Products Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat

Item # 337TC1474P
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Retail:$32.40
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Shipping Weight: 1.22 lbs
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337TC1474P - Multi-Function Adapter Buyers Products Wiring
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This multi-function, vehicle-end connector converts any 4-way flat, vehicle-end plug to a combination 7-way outlet and 4-pole flat outlet. Lowest Prices for the best wiring from Buyers Products. Buyers Products Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat part number 337TC1474P can be ordered online at etrailer.com or call 800-298-1624 for expert service.
  • All Info
  • Reviews (27)
  • Q & A (7)
  • Photos
  • Why etrailer?

Buyers Products Wiring - 337TC1474P

  • Wiring Adapters
  • Multi-Function Adapter
  • Plug and Lead
  • 0 - 5 Feet Long
  • 4 Flat
  • Buyers Products

This multi-function, vehicle-end connector converts any 4-way flat, vehicle-end plug to a combination 7-way outlet and 4-pole flat outlet.


Features:

  • Adapts 4-way flat to both 7-way RV and 4-way flat
    • 4-Way flat output connects tail lights, brake lights, and turn signals
    • 7-Way connects tail, brake, reverse, turn signals, and auxiliary power
  • Dust covers are dirt and weather-resistant
  • Split loom keeps wires contained and protected from the elements
  • Simple installation
    • Wiring harness plugs into existing 4-way flat connector and hardwires to existing wiring to get additional functions needed for 7-way
  • Included hardware and metal mounting bracket secures wiring to the vehicle or trailer hitch
  • 1-Year warranty


Specs:

  • Distance between bracket mounting holes center to center: 2-1/4"
  • Harness length: 10"
  • Yellow wire is for reverse lights
  • Blue wire is for brakes
  • Black wire is for 12 volt power
  • White wire is ground


57672 Connector Diagram



TC1474P Buyers Products 7-Way Dual-Plug Trailer Connector with 10 Inch Prewired Harness






Customer Reviews

Buyers Products Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat - 337TC1474P

Average Customer Rating:  4.7 out of 5 stars   (27 Customer Reviews)

This multi-function, vehicle-end connector converts any 4-way flat, vehicle-end plug to a combination 7-way outlet and 4-pole flat outlet.

- 337TC1474P
by:

Paula did a fantastic job recomending parts needed to make the job easy!!!!! Took the time needed, didn’t rush me, BRAVO!! Thanks!



- 337TC1474P
by:

Been using etrailer.com. for years now. We have a pop up camper with a 7 pole connector, bit the standard kits never seem to be available with a 7 pole connector. This is super easy to install on the stock 4-pole connector. Definitely pick up the kit that allows you to run power to the connector. It's a Curt 55151, "Powered converter wiring kit". This will allow you to charge your battery while driving.



- 337TC1474P
by:

Has worked well during 1st year and 15K miles of trips.



- 337TC1474P
by:

Perfect for my application. I give it 5 stars. Quality is good and the price is reasonable.



- 337TC1474P
by:

Very happy with it. Took one star away because some of the screws that they used for the wire plug attachment rusted right away. You think that they would have used screws that wouldn't have rusted so easily.



- 337TC1474P
by:

This is a solid 7 way adapter which I would recommend. You will need to buy a 12V wire and fuse to connect to your battery, or buy a kit that comes with these parts. I did not need those as this was a replacement for 7 way adapter I had already installed but damaged. 4 stars because - The 4 way plug just pops into a slot next to the 7 way connector but there is nothing that keeps it there. So it feels like it could fall out. - The included crimp connectors are the standard type, not the water resistant type.



- 337TC1474P
by:

Just what I needed. I did cut off plug to wire in to existing.



- 337TC1474P
by:

Worked as planned. Simple, easy



- 337TC1474P
by:

One of the Best online ordering experience I have ever had the pleasure doing. Barry handled the transition from the beginning till the end and not knowing much about what I was talking about,he walked me though the entire process. It says a lot about a company when their employees take such pride and knowledge in their job performance. Again it was my first time working with your company and it definitely wont be the last Thank you so much for all the help the great product and the fast delivery



- 337TC1474P
by:

Great product. Installed like it should have. I did have to modify my rear pumper some to get this to fit with the hitch. Still looks great and I'm very please with the service.



- 337TC1474P
by:

This installed very easy on my Ford Escape after market Draw Tite hitch. Watched the videos and didn't have any questions. Product was delivered fast.



- 337TC1474P
by:

Great item for the price. The 4-wire connector loosely slots into the side of the bracket, and doesn’t inspire confidence that it will stay there when the weight of a trailer harness is on there. Both of the self tapping screws snapped when I tried to attach it to the rear crossmember of a 2020 wrangler. I even drilled a pilot hole to give them a chance. They are probably only designed for light sheet metal.



- 337TC1474P
by:

My order came in great time, it was exactly the perfect part and fit as expected.



- 337TC1474P
by:

Quick and easy to install



- 337TC1474P
by:

Seems to be well made and easy to install. Good price, fast delivery.



- 337TC1474P
by:

5 th purcase from them always order is exactly what i orderd. Shipping is great get it on time or early



- 337TC1474P
by:

good



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Ask the Experts about this Buyers Products Wiring

  • 7-Way Vehicle Wiring Plug Bracket For Mounting on 2016 Mercedes-Benz Sprinter
    I recommend using a Curt No-Drill Bracket # C57202 that will allow you to attach the Buyers Products Trailer Connector # 337TC1474P to your 2016 Mercedes-Benz Sprinter hitch. This bracket uses a clamp and will not require you to drill into the hitch. I have attached a video below that will show what this bracket will look like on a 2014 Sprinter.
    view full answer...
  • Can I Use Buyers Products Trailer Adapter For Just the 4-Way Functions
    Yes, you can plug your existing 4-way into the 4-way pigtail of the Buyers Products Trailer Connector Adapter part # 337TC1474P and ground the 7-way plug to a clean bare metal surface on the frame. You can tuck the black, blue and yellow wires away. The 4-way plug on the adapter will allow you to plug in a trailer that uses a 4-way trailer connector.
    view full answer...
  • Adding a Charge Line Circuit To a Trailer With a 4-Way/5-Way Flat Connector
    I recommend moving away from the Adapter 4-Pole to 5-Pole Trailer Wiring Adapter # 47515 and going with a Buyers Products Trailer Connector Adapter # 337TC1474P. The wiring and connectors used on the 4-way harness are not designed to be used with the 20amps of power you will putting on the connector. The 4-way/5-way connector cannot handle the additional strain and it will likely overheat with the amperage and risk causing an electrical fire. With the Buyers Products Trailer Connector...
    view full answer...
    Image 1 for
  • Can I Add a 7-Way Plug to the Curt Tail Light Converter with 4-Pole Flat Trailer Connector C59236
    Yes the Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector part # C59236 does have a 4-way flat that can be turned into a 7-way connector. For just basic lighting functions the Buyers Products Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat part # 337TC1474P is a great choice that will give you stop, turn and running light functions. If you want a 12 volt powered plug go with part # ETBC7L and for a fully functioning 7-way that would have lights, trailer...
    view full answer...
  • 2018 Ford F150 Hitch 4-way to 7-way Trailer Connector
    If you need to connect to a trailer that has a 7-way but does not have or need brake signal, 12V power, or a reverse signal then you can the # 337TC1474P connector. It plugs into your existing 4-way and then you can tape the other wires up out of the way. I have included a video of this being installed with another kit on an SUV and at the very end of the video you can see this 7-way being installed. To get a fully functional 7-way on your 2018 Ford F-150 with a factory 4-way, you will...
    view full answer...
  • Trailer Hitch For 2018 Lincoln MKT For Towing a 4,000 Lb Trailer
    I was able to confirm that the Draw-Tite Max-Frame Trailer Hitch Receiver part # 75679 is a fit for the 2019 Lincoln MKT which is the only option. It is a great option with a custom fit design that does not require drilling into the frame of the Lincoln MKT. This will give a 2" receiver on the Lincoln that can tow 4,000 lbs however you do want to check the owner's manual to make sure you can tow 4,000 lbs safely. For the trailer wiring, I recommend 7-way plug part # A10-7072VP which...
    view full answer...
  • Troubleshooting Hyper-Flashing on LED Trailer Lights and 1995 Jeep YJ
    The T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # 118356 is a great option to use as your trailer wiring. There is a 7-Way to 5-Way/4-Way Trailer Adapter for Vehicles with Lamp-Out Sensors Towing Trailers with LEDs # TR20141 that will work great when using an adapter like # 337TC1474P. This has the internal load resistors to remove the hyper-flashing.
    view full answer...

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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Video Edited:
Jeff D
Employee Chris R
Video Edited:
Chris R
Employee Robert C
Test Fit:
Robert C
Employee Kristina F
Written by:
Kristina F
Employee Aidan B
Video by:
Aidan B

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