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Curt Trailer Connector Adapter - 4-Way Flat to 5-Way Flat - Vehicle End

Retail: $35.73
Our Price: $12.90
In Stock
Convert your vehicle's 4-way flat trailer connector to a 5-way flat. Plug the 4-pole connector into your vehicle and connect the wire leads to get the electric brake function.Features: Adapter converts your 4-way flat trailer connector to a 5-way flat trailer connector Additional wire leads for reverse lights Durable molded plastic construction resists corrosion Simple
  • 4 Flat to 5 Flat
  • Universal Fit
  • Wiring Adapters
  • CURT

TowSmart 7-Way RV Style to 4-Flat or 5-Way Flat Trailer Connector Adapter

Retail: $26.99
Our Price: $22.16
In Stock
You're ready to hit the road, but your trailer's 4-pole or 5-way flat plug doesn't match your vehicle's 7-way blade socket. Instead of rewiring, simply plug in this adapter and get ...
Highlights Plug-and-play adapter: Connects 7-way RV blade socket to 4-flat or 5-flat trailer wiring. No rewiring needed: Just plug in and towno cutting or splicing required. Dual trailer
  • 5 Flat
  • 4 Flat
  • Universal Fit
  • Wiring Adapters
  • Plug-In
  • TowSmart

Hopkins Multi-Tow Trailer Connector Adapter - 7-Way to 5-Wire Flat/4-Wire Flat and 12-V Power Socket

Retail: $36.13
Our Price: $23.94
Adapt the 7-way trailer socket on your vehicle to work with a 4-way or 5-way flat connector on the trailer. Adapter also provides a 12-volt power source outlet. Great for tailgating.Features: Versatile adapter and power socket Adapts from a 7-way RV blade trailer connector on the vehicle Provides a 5-wire flat, 4-wire flat and a 12-volt power socket Covers included to protect
  • 7 Blade to 4 Flat
  • 7 Blade to 5 Flat
  • Universal Fit
  • Wiring Adapters
  • Hopkins

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Retail: $147.95
Our Price: $109.14
In Stock
Easily add a 4-way trailer connector with this custom-fit harness. The T-connector plugs into existing wiring - no cutting needed. Powered converter protects vehicle circuits and ensures consistent trailer lighting for safe towing in any conditions.
  • 4 Flat
  • No Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • CURT
  • Powered Converter
  • Hidden

Curt T-Connector Vehicle Wiring Harness with 4-Way Flat Trailer Connector

Our Price: $158.96
In Stock
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole, and 7-pole adapters (sold separately) Includes
  • 4 Flat
  • No Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • CURT
  • Powered Converter
  • Hidden

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Retail: $152.95
Our Price: $121.43
In Stock
Easily add a 4-way trailer connector with this custom-fit harness. The T-connector plugs into existing wiring - no cutting needed. Powered converter protects vehicle circuits and ensures consistent trailer lighting for safe towing in any conditions.
  • 4 Flat
  • No Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • CURT
  • Powered Converter
  • Hidden

New Arrivals — From Our Shop to You!

Chosen by folks who live and breathe this, just like you.

New Arrivals — From Our Shop to You!

Chosen by folks who live and breathe this, just like you.

Kenny
Kenny etrailer team member
Kenny etrailer team member

3

Years

|

278

Installations

3,868

Customers Helped

Any questions? Chat us from Missouri

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

Retail: $39.99
Our Price: $29.99
In Stock
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 ...
Highlights Dual Trailer Outputs: 7-way blade and 4-flat connectors in one housing. 4-Way Input: Converts standard vehicle 4-flat wiring to work with multiple trailer types. Built-In Cover: Keeps the
  • 4 Flat to 4 Flat
  • 4 Flat to 7 Blade
  • Universal Fit
  • Wiring Adapters
  • TowSmart

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Retail: $104.95
Our Price: $82.39
In Stock
Easily add a 4-way trailer connector with this custom-fit harness. The T-connector plugs into existing wiring - no cutting needed. Powered converter protects vehicle circuits and ensures consistent trailer lighting for safe towing in any conditions.
  • 4 Flat
  • No Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • CURT
  • Powered Converter
  • Hidden

Blue Ox Patriot Portable Flat Tow Brake System - Proportional

Our Price: $1,489.90
In Stock
Small, light, and precise, this portable unit gets you smooth braking with basically no installation. Plugs directly into 12V outlet. Easy to swap between multiple cars. Control and monitor the system remotely from your motorhome with LCD display. System for Flat Towing? A braking system is a must when towing a vehicle behind your motorhome. Without it, the weight of the towed car can create a safety hazard, strain your RV's brakes, and affect
  • Portable System
  • Built-In Battery
  • Brake Systems
  • Proportional System
  • Air Brakes
  • Air Over Hydraulic Brakes
  • Hydraulic Brakes
  • Blue Ox
  • Every-Trip Setup
  • Wireless Display

Curt RVi Series 4 Portable Flat Tow Brake System - Wireless Monitor - Proportional

Retail: $2,103.95
Our Price: $1,595.95
In Stock
Imagine prepping for your trip and having your braking system ready in less than a minute. With the RVibrake 4, the audio assistant guides you step by step, so there's no fumbling or guesswork, just a quick and reliable setup every time. without tools. Works With Almost Any Vehicle: Fits any flat towable vehicle except the Ford C-Max. Easy To Handle And Store: Slim, lightweight design makes it simple to swap between vehicles or put away
  • Portable System
  • 12V Outlet
  • Brake Systems
  • Proportional System
  • Air Over Hydraulic Brakes
  • Air Brakes
  • Hydraulic Brakes
  • CURT
  • Every-Trip Setup
  • Wireless Display

Demco Air Force One Flat Tow Brake System for RVs w/ Air Brakes - Proportional

Retail: $1,671.00
Our Price: $1,329.00
In Stock
Get safe, smooth braking for your towed car with this truly proportional braking system. Car slows perfectly in sync with your RV. Installs permanently so you can just plug in and go. Low-profile design keeps it out of sight and out of the way.Features: Get the safest and most even braking while flat towing Uses the air pressure from your RV's brake line to apply towed car's brakes at the same time, with the same intensity Applies
  • Fixed System
  • Vehicle Battery
  • Brake Systems
  • Proportional System
  • Air Brakes
  • Demco
  • One-Time Setup
  • Indicator Lights

Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector

Retail: $130.95
Our Price: $76.69
In Stock
Install a 4-way flat on your vehicle with this splice-in harness. Powered converter connects directly to battery to reduce strain on wiring. Potted, SMT construction boosts water and vibration ...
Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately) Ensures
  • 4 Flat
  • Universal Fit
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Splice-In
  • CURT
  • Powered Converter

Curt RVi Series Shadow 2 Flat Tow Brake System - Wireless Monitor - Proportional - Fixed

Retail: $2,103.95
Our Price: $1,595.95
In Stock
Think of it as a one-time project that pays off on every trip. Once the Shadow 2 braking system is installed under the hood, you hook up, check your monitor, and drive away with the peace of mind that your towed vehicle is stopping safely behind you. Flat Towing? A braking system is a must when towing a vehicle behind your motorhome. Without it, the extra weight of your toad (towed vehicle) puts more stress on your RV's brakes, makes it harder to
  • Fixed System
  • Vehicle Battery
  • Brake Systems
  • Proportional System
  • Air Over Hydraulic Brakes
  • Air Brakes
  • Hydraulic Brakes
  • CURT
  • One-Time Setup
  • Wireless Display

Brake Buddy Classic 3 Portable Flat Tow Brake System - Preset

Retail: $1,374.00
Our Price: $1,255.39
In Stock
This portable unit gets you smooth braking without a complex installation. Senses the RV braking and applies the car's brakes at an intensity preset by you. Easy to swap between multiple cars; settings adjust for smooth braking for any size car.; - 4" tall Power harness length: 36" Weight: 9 lbs 5-Year limited warranty Do I Need a Braking System for Flat Towing? A braking system is a must when towing a vehicle behind your motorhome
  • Portable System
  • 12V Outlet
  • Brake Systems
  • Pre-Set System
  • Hydraulic Brakes
  • Air Over Hydraulic Brakes
  • Air Brakes
  • Brake Buddy
  • Every-Trip Setup
  • Indicator Lights

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Retail: $58.99
Our Price: $39.73
In Stock
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately) Connects
  • 4 Flat
  • No Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • CURT
  • Powered Converter
  • Hidden

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Retail: $115.95
Our Price: $74.73
In Stock
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately) Connects
  • 4 Flat
  • No Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • CURT
  • Powered Converter
  • Hidden

Curt Powered Tail Light Converter w/ 4-Way Flat Trailer Connector and Install Kit

Our Price: $165.70
In Stock
Great for cars and trailers with either LED or incandescent bulbs, this kit converts your vehicle's lighting system to match your trailer's. It includes a 4-way flat, wire taps, and a power ...
Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole, and 7-pole adapters (sold separately) Ensures
  • 4 Flat
  • Universal Fit
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Splice-In
  • CURT
  • Powered Converter

Brake Buddy Select 3 Portable Flat Tow Brake System - Proportional

Retail: $1,791.00
Our Price: $1,473.76
In Stock
This portable unit gets you smooth braking without a complex installation. Senses the RV braking and applies the brakes proportionally. Easy to swap between multiple towed cars: settings adjust for safe, even braking for any size car. harness length: 36" Weight: 12 lbs 5-Year limited warranty Do I Need a Braking System for Flat Towing? A braking system is a must when towing a vehicle behind your motorhome. Without it, the weight of
  • Portable System
  • 12V Outlet
  • Brake Systems
  • Proportional System
  • Hydraulic Brakes
  • Air Brakes
  • Air Over Hydraulic Brakes
  • Brake Buddy
  • Every-Trip Setup
  • Wireless Display

Curt Dual Connection Socket w/ Bracket - 7-Way RV Style and 4-Way Flat - Vehicle End

Our Price: $58.19
In Stock
Easily connect either a 7-way or 4-way trailer-end connector with this dual-outlet socket. Simply plug this into your vehicle's OEM USCAR wiring system and mount it with the included bracket.Features: Provides a 4-way and 7-way socket for your trailer connector Fits USCAR-equipped vehicles with factory tow plugs 4-Way flat output connects tail lights, brake lights and turn signals 7-Way
  • 7 Blade
  • 4 Flat
  • Universal Fit
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • CURT

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Retail: $115.95
Our Price: $69.94
In Stock
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately) Connects
  • 4 Flat
  • No Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • CURT
  • Powered Converter
  • Hidden

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Retail: $115.95
Our Price: $75.72
In Stock
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately) Connects
  • 4 Flat
  • No Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • CURT
  • Powered Converter
  • Hidden

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Retail: $84.95
Our Price: $53.93
In Stock
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connectors plug directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately) Connects
  • 4 Flat
  • No Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • CURT
  • Powered Converter
  • Hidden

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Retail: $53.61
Our Price: $49.34
In Stock
Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring - no cutting, splicing or tapping required.Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately) Connects
  • 4 Flat
  • No Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • Tekonsha
  • Powered Converter
  • Hidden

T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Retail: $112.03
Our Price: $71.04
In Stock
Quickly and easily install a 4-way trailer connector on your vehicle with this custom wiring harness. T-One connector plugs directly into existing wiring. Powered ModuLite reduces strain on wiring system.Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately) Connects
  • 4 Flat
  • No Tow Package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • Tekonsha
  • Powered Converter
  • Visible