Buyers Products Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat
(121 reviews)
Price: $20.49
In Stock
Buyers Products Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat
Retail:$36.20
Our Price: $20.49
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In Stock
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- All Info
- Reviews (121)
- Q & A (0)
- Photos
Buyers Products Trailer Wiring
- 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
TC1474P Buyers Products 7-Way Dual-Plug Trailer Connector with 10 Inch Prewired Harness
Item # 337TC1474P
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
- Wrong item was ordered
- Product did not meet expectations
- Did not arrive in time
Customer Reviews
Buyers Products Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat - 337TC1474P
Average Customer Rating: 4.8 out of 5 stars (120 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.by: Anthony 03/25/2024
Fasteners are rusting a bit, but it's a solid piece, and works well. I had a hard time ensuring the wiring was absolutely correct, but it's been in heavy use since installation.
by: Jesse 07/25/2023
I paired this product with product number C56349 for my 2016 Toyota Tacoma in order to tow a teardrop trailer which has trailer brakes. After installing the 4-way plug (C56349 is extremely easy to install), installation of this item was a breeze. I’m very happy with this product and look forward to towing my teardrop
by: Gary 04/13/2024
it worked perfectly.
by: Kirk 02/22/2024
Great product, it was easy to install. It's still in great shape after a year of being on the car.
by: Mike 03/22/2024
Always have the towing equipment I need.
by: John 09/21/2023
this adapter seems to be what was said that i needed.it has been working for three days,easy to put on and looks good.guess thats what everyone calls "plug and play "
by: Angelo 03/30/2024
Everything as described. Delivery was f ast.
by: John02/27/2024
Awsome product
by: Thomas04/20/2023
So I placed an order for a 4 pole converter and etrailers contacted me quickly and let me know my order was backorded a little but they had a matching product that was cheaper. As they changed my order they realized I ordered the wrong ending and fixed that also. Arrived today and everything fit as they said it would. Excellent
by: Tom 12/29/2023
This product works great. I’m happy with the purchase.
by: Garrett 03/29/2023
I don’t use anyone but etrailer for towing accessories, these guys have good prices and great products. This adapter works great and is easy to install. 10 out of 10!
by: Lewis08/13/2021
Paula did a fantastic job recomending parts needed to make the job easy!!!!! Took the time needed, didn’t rush me, BRAVO!! Thanks!
by: Michael 05/08/2023
Great product, allows me to use either 4 or 7 pin connector on my 02 Dakota.
by: Harry 05/11/2023
The whole ordering process was excellent. William was great in assisting me select the correct parts for my trailer hook up.
by: Edwin03/28/2023
etrailer knew exactly what I needed good knowledge and specific. great customer support arrived on time.
by: John 06/06/2023
I had technical questions. I called and they help me find the right part that was less money than my original item I was going to buy
by: Mark 03/02/2023
It worked great on my 01 Silverado. The only thing I didn't like is the way the 4way plug just slides into bracket with nothing securing it.Other than that was easy install.
by: Joel09/13/2019
Perfect for my application. I give it 5 stars. Quality is good and the price is reasonable.
by: Dave 12/01/2023
We’ll designed
by: Kelly12/12/2021
Price was right, but not the quality of design. The 4-way plug sits into an open-sided area on the mounting bracket, a loose fit and never stayed in place. I had to remodel, cut a piece of tin and pop-rivet to bracket, to trap 4-way plug and keep in place. Spending a little more money gets you something that works at the get-go.
by: Mark12/20/2022
Part worked as advertised. Excellent service to replace a part that what incorrect. etrailer will always make it right! That is important for DYI guys like me.
by: Steven 01/30/2021
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.
by: Bruce 04/04/2023
Good product easy installation and dummy proof.
by: Matt07/18/2019
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.
by: Andrew02/16/2020
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.
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See what our Experts say about this Buyers Products Trailer Wiring
- Can I Use Buyers Products Trailer Adapter For Just the 4-Way FunctionsYes, 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... - 7-Way Vehicle Wiring Plug Bracket For Mounting on 2016 Mercedes-Benz SprinterI 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.
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view full answer... - Can The Buyers Products Trailer Connector # 337TC1474P Be Mounted on The Trailer? Yes, the Buyers Products Trailer Connector Adapter # 337TC1474P can be mounted to your trailer. This is what some use in a tandem trailer tow situation. Or you could use this with a Double-Ended 7-Way # 50-67-210 to connect on both the vehicle and trailer.
view full answer... - How Can I Get Both A 7 Way and 4 Flat Plug On My 2018 Toyota Tacoma?I can definitely help set you up! First we set you up with a 4 pin T harness like the # C56349. This will plug in behind your tail lights and give you a 4-flat connector on the back. From there you can use our universal upgrade kit # ETBC7. This kit will come with absolutely everything you need to upgrade the 4 pin connector to a 7 way. The plug we include with this kit is part # 337TC1474P which will have both a 7 way and 4 way that you can hook up to. Once the # ETBC7 kit is installed...
view full answer... - Replacement Trailer Connector For 7-Way RV Upgrade Kit ETBC7 and ETBC7LYou can use the Trailer Connector Adapter # 337TC1474P to replace your connection as we do not have a replacement cover for the 7-Way RV Upgrade Kit # ETBC7L. The new connector will plug in just like your current unit and has the same 4-way and 7-way connectors. You will only need a set of Wiring Pliers # PT43ZR to cut the old power wire and install the new connector. Be sure to disconnect the battery before cutting any wiring.
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- 2018 Ford F150 Hitch 4-way to 7-way Trailer ConnectorIf 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...
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view full answer... - Can I Add a 7-Way Plug to the Curt Tail Light Converter with 4-Pole Flat Trailer Connector C59236Yes 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... - Adding a Charge Line Circuit To a Trailer With a 4-Way/5-Way Flat ConnectorI 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...
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- Convert Motorhomes 4 Way To 7 Way And Install Charge Line For Towed Vehicle BatteryIf you do not have a 4 way flat and just have 4 wires at the back of your motorhome, then use Hopkins Endurance Quick-Fix Replacement 4-Way Flat Trailer Connector w LED Test Lights - Vehicle End # HM48190. This will connect your 4 wires to a 4 way flat plug. Once you have a 4 way flat, you can convert to 7 way with Buyers Products Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat # 337TC1474P7. Your 4 way flat will plug into the 4 way harness on this adapter, then you will need...
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Do you have a question about this Trailer Wiring?
Info for this part was:
Edited by:
Lindsey S
Video Edited:
Jeff D
Video Edited:
Dustin K
Video Edited:
Chris R
Video by:
Joshua S
Video by:
Aidan B
Video by:
Ethan H
Test Fit:
Robert C
Test Fit:
John A
Written by:
Kristina F
Installed by:
Ryan G
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Jenny N.
12/14/2021
I recommend part # C58000 as an alternate bracket. It clamps to the hitch receiver and also provides a four-way clamp that will hold the 4 flat more securely.
Helpful Links
Accessories-and-PartsCurtC58000.html