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  1. Custom Fit Vehicle Wiring
  2. TowSmart
  3. 4 Flat to 4 Flat
  4. 4 Flat to 7 Blade
  5. Universal Fit
  6. Wiring Adapters
TowSmart ProClass Trailer Connector - 4-Way to 7-Way and 4-Way Flat - Vehicle End
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TowSmart

TowSmart ProClass Trailer Connector - 4-Way to 7-Way and 4-Way Flat - Vehicle End

Part Number: TS59RR
In Stock
$30.60
Retail:$39.99
You Save: 23%
Custom Fit Vehicle Wiring
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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
You're set up with a 4-way, but your buddy's trailer has a 7-way plug. Instead of rewiring your rig, you snap this adapter into place and keep moving. It gives you both 4-flat and 7-way outputs, ready for whatever pulls into the driveway. 1-800-940-8924 to order TowSmart custom fit vehicle wiring part number TS59RR or order online at etrailer.com. Free expert support on all TowSmart products. Great prices and Fastest Shipping for TowSmart ProClass Trailer Connector - 4-Way to 7-Way and 4-Way Flat - Vehicle End. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (2)
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  • Videos (1)
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TowSmart Custom Fit Vehicle Wiring - TS59RR

Highlights

  • Tow More Trailers: 7-way and 4-way plugs let you connect to different trailer types.
  • Plug-and-Play Install: Adapter connects to your existing 4-way for quick setup.
  • Brake and Power Ready: 7-way output supports trailer brakes and 12V accessories.
  • Clean, Universal Fit: Works with standard 4-flat wiring for most tow setups.
  • Simple Conversion: Converts 4-flat vehicle wiring to 7-blade and 4-flat outputs.

Features to know about

Switch Between Trailer Types Without Hassle: Dual 4-Way and 7-Way Connector

Towing different trailers doesn’t have to mean swapping harnesses. This TowSmart ProClass connector gives you both a 4-flat and a 7-way blade plug right at the vehicle end. It’s built for flexibility so you can tow small utility trailers one day and a camper or boat trailer the next—all from the same connection point.

Get Plugged In Fast: Simple, Plug-Only Setup

No cutting, splicing, or complicated wiring needed. The connector is a plug-only design that installs quickly to the existing vehicle wiring. It’s straightforward to hook up and ready to use right out of the box, saving time on setup so you can get to towing sooner.

Built for Reliable Power: Solid, Universal Fit

Designed as a universal fit adapter, it offers a solid connection for consistent lighting and power signals. Whether you’re using the 4-way or 7-way side, the durable contacts keep things secure so your running lights, turn signals, and brakes work every time you plug in.

Simplifies Upgrades and Replacements: One Connector for Multiple Jobs

If you’re looking to replace an old connector or upgrade for new trailer wiring, this adapter makes it easy. With both plug types in one housing, you get the flexibility to handle almost any trailer hookup without extra parts or adapters.

Specs

Electrical Specifications

  • Connector Type: 4-Way to 7-Way and 4-Way Flat
  • Connector Location: Vehicle End

Compatibility

  • Fit Type: Universal Fit
  • Application: 4 Flat to 4 Flat, 4 Flat to 7 Blade

Manufacturer Information

  • Manufacturer: TowSmart
  • Product Line: ProClass

Q9780 Tow Smart ProClass Trailer Connector - 7-Way RV Blade and 4-Way Flat

Same as 2523





Video of TowSmart ProClass Trailer Connector - 4-Way to 7-Way and 4-Way Flat - Vehicle End
Video Thumbnail Video Player Dialog

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of TowSmart Custom Fit Vehicle Wiring - ProClass 4 Way 7 Way And 4 Way Flat - TS59RR

Hi, everybody. Andy here with etrailer.com. Let's take a quick look at this TowSmart ProClass 4-Way to 7-Way and 4-Way Flat Trailer Connector. Now, this socket's going to give you both the 7-blade and 4-flat outputs from your existing 4-flat wiring. So you'll just plug this into your existing 4-way flat plug, and then this end will securely connect to the back of the housing, and then you're gonna be able to have a 7-way and a 4-way. This is going to install permanently on your bumper or bracket.

It's gonna be ideal for vehicles towing different types of trailers. The molded housing is going to include these weather caps here. The 7-way is spring loaded. The 4-way isn't, just so you're aware of that, but it's gonna keep those connection points clean. You're not gonna have to worry about road grime or debris getting caught up in there when they're closed.

So it includes everything that you see here. And let me go ahead and give you some overall measurements. So looking at the width, about 3-1/2 inches. The overall height, about almost 3-1/2 inches tall. And then the overall depth end to end, right at about almost 3-1/4.

And just the housing itself, not including the socket, almost 1-7/8 inches, just to give you a good idea of the size. Obviously you'll need to connect these other wires to activate your 7-way. But if you happen to have any other additional questions, don't hesitate to give us a call. We do wanna be sure that you're getting exactly what you want and need. Well, I think that's gonna wrap up our quick look today.

I do hope that it was helpful for you. Again, my name is Andy. Thank you for joining me.

Customer Satisfaction Score:

Ratings & Reviews

5.0

2 reviews
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You're set up with a 4-way, but your buddy's trailer has a 7-way plug. Instead of rewiring your rig, you snap this adapter into place and keep moving. It gives you both 4-flat and 7-way outputs, ready for whatever pulls into the driveway.

by:



by:


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See what our Experts say about this TowSmart Custom Fit Vehicle Wiring


Info for this part was:

Employee Mary K
Edited by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Daron K
Updated by:
Daron K
Employee Kim H
Updated by:
Kim H
Employee Andy C
Installed by:
Andy C
Employee Sabrina W
Written by:
Sabrina W

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