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Result: 4 Prong Trailer Wiring Harness

Hopkins Wiring Harness with 4-Pole Flat Trailer Connector - Trailer End - 4' Long

Our Price: $6.38
In Stock
Wire your trailer with this universal, splice-in wiring harness so that you can connect the trailer's wiring to your vehicle's during towing. Corrosion-resistant terminals are long-lasting ...
compliant Specs: Harness length: 4' Wiring configuration: White: ground wire Yellow: left turn/brake light Green: right turn/brake light Brown: tail lights 90-Day limited warranty
  • Trailer Connectors
  • Trailer End Connector
  • 4 Flat
  • Hopkins

35 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 42" Ground

Retail: $24.93
Our Price: $22.88
In Stock
4-Way trailer harness connects to your tow vehicle to control trailer light functions. Wishbone-style harness comes with 2 tail light wires split for simple wiring.Features: 4-Way trailer harness connects to your tow vehicle to control trailer light functions Wishbone-style harness comes with 2 tail light wires split for simple wiring Allows you to run wires
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Splice-In
  • 4 Flat
  • No Converter
  • Optronics
  • Universal Fit

30 ft. Wishbone 4-Way Trailer Wiring Harness with 30" Ground Wire

Our Price: $17.94
30' Wishbone 4-Way Trailer Wiring Harness with 30" Ground Wire This is a 30' split wishbone 4-way trailer wiring harness with four conductors and a 30" ground wire.
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Splice-In
  • 4 Flat
  • No Converter
  • Optronics
  • Universal Fit

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

Retail: $84.95
Our Price: $56.09
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 ...
quickly and easily - no cutting or splicing of wires Tow harness with 4-way connector plugs into connection point in rear cargo area Includes a tail light converter to ensure that your vehicle's wiring
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • 4 Flat
  • Powered Converter
  • CURT
  • Hidden
  • No Tow Package

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

Retail: $57.25
Our Price: $44.21
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. circuit 1-Year limited warranty Installation This custom-fit T-One connector plugs into your vehicle's wiring harness, which is located in your rear cargo area, either behind the driver's-side trim
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • 4 Flat
  • Powered Converter
  • Tekonsha
  • Hidden
  • No Tow Package

3-Wire Adapter for LED Lights - 3-Prong PL-3 Plug to AMP - 7-3/4" Long

Retail: $26.68
Our Price: $11.33
In Stock
This 3-wire adapter harness allows you to install a Peterson LED light using an existing 3-prong trailer wiring harness. Harness has a female PL-3 plug to connect to your existing wiring and a male ...
Features: Y-adapter harness allows you to install a Peterson LED light using an existing 3-prong trailer wiring harness Designed specifically for use with stop/tail/turn lights, parking/turn lights
  • Trailer Lights
  • Wiring
  • Three Wire
  • Plugs and Pigtails
  • Peterson
  • Straight Pigtail

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.

Josh
Josh etrailer team member
Josh etrailer team member

7

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Installations

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Customers Helped

Any questions? Chat us from Missouri

Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter

Retail: $21.95
Our Price: $19.29
In Stock
Trailer wiring adapter changes the 4 pole flat on your vehicle into a 5 pole flat.Features: Length of harness: 20" Length of blue wire: 60" The blue wire gets spliced into the reverse light wire on the vehicle which is easily done with the included quick splice wire
  • Wiring Adapters
  • 4 Flat to 5 Flat
  • Tow Ready
  • Universal Fit

3-Wire Y-Adapter for Peterson Trailer Tail Lights - 3-Prong PL-3 Plug - 12" Long

Retail: $29.34
Our Price: $22.00
In Stock
This 3-Wire, Y-adapter harness allows you to install 2 Peterson lights using an existing 3-prong trailer wiring harness. Harness has 2 male PL-3 plugs and 1 female PL-3 plug.Features: Y-adapter harness allows you to install 2 Peterson lights using an existing 3-prong trailer wiring harness Designed specifically for use with stop/tail/turn lights, parking/turn lights, and
  • Trailer Lights
  • Wiring
  • Three Wire
  • Plugs and Pigtails
  • Peterson
  • Y-Adapter

Right Angle 2-Wire Pigtail for Optronics Trailer Lights - 2-Prong PL-10 Plug - 6" Lead

Retail: $7.43
Our Price: $4.69
In Stock
2-Wire pigtail has a male plug on one end that pairs with the female connection on your Optronics light. Right-angle plug allows wires to run down from light instead of straight out the back ...
of plug allows wiring to run down from the light rather than straight out of the back Male-pin, 2-prong PL-10 molded plastic plug connects to back of trailer light 2-Wire pigtail White wire for ground
  • Trailer Lights
  • Wiring
  • Two Wire
  • Plugs and Pigtails
  • Optronics
  • Right Angle Pigtail

3-Wire Y-Adapter for LED Lights - 3-Prong PL-3 Plug to Dual AMP - 12" Long

Our Price: $21.02
In Stock
This 3-wire, Y-adapter harness allows you to install 2 Peterson LED lights using an existing 3-prong trailer wiring harness. Harness has a female PL-3 plug to connect to your existing wiring and 2 ...
Features: Y-adapter harness allows you to install 2 Peterson LED lights using an existing 3-prong trailer wiring harness Designed specifically for use with stop/tail/turn lights, parking/turn lights
  • Trailer Lights
  • Wiring
  • Three Wire
  • Plugs and Pigtails
  • Peterson
  • Y-Adapter

Hopkins Wiring Harness with 4-Pole Flat Trailer Connector - Trailer End - 6' Long

Our Price: $6.69
In Stock
Wire your trailer with this universal, splice-in wiring harness so that you can connect the trailer's wiring to your vehicle's during towing. Corrosion-resistant terminals are long-lasting. trailer wiring Corrosion-resistant terminals are long-lasting Specs: Harness length: 6' Wiring configuration: White: ground wire Yellow: left turn/brake light Green: right turn/brake light Brown: tail
  • Trailer Connectors
  • Trailer End Connector
  • 4 Flat
  • Hopkins

Curt Wiring Harness with 4-Pole Flat Trailer Connector - Trailer End - 48" Long

Retail: $9.95
Our Price: $6.61
In Stock
Wire your trailer with this universal, splice-in wiring harness so that you can connect the trailer's wiring to your vehicle's during towing. Designed for use with 2-wire electrical systems. systems 4-Pole flat trailer-end connector plugs into the 4-way flat on your tow vehicle Color-coded wires allow for simple hardwiring to existing trailer connections Specs: Harness length: 48" Wiring
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Splice-In
  • 4 Flat
  • No Converter
  • CURT
  • No Tow Package

Wesbar Wishbone Wiring Harness with 4-Pole Flat Trailer Connector - Trailer End - 18" Long

Our Price: $16.35
Wire your trailer with this universal, splice-in wiring harness so that you can connect the trailer's wiring to your vehicle's during towing. Wishbone design removes need for a jumper wire ...
Features: 4-Pole flat trailer-end connector plugs into the 4-way flat on your tow vehicle 2 Tail light wires of wishbone-style harness make wiring your trailer more efficient One tail light wire
  • Trailer Connectors
  • Trailer End Connector
  • 4 Flat
  • Wesbar

25 ft. Wishbone 4-Way Trailer Wiring Harness with 42" Ground Wire

Our Price: $16.36
In Stock
25' Wishbone 4-Way Trailer Wiring Harness with 42" Ground Wire This is a 25' split wishbone 4-way trailer wiring harness with four conductors and a 42" ground wire. Manufacturer
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Splice-In
  • 4 Flat
  • No Converter
  • Optronics
  • Universal Fit

4-Way Wishbone Trailer Wiring Harness with 42" Ground Wire - 40' Long

Our Price: $37.38
In Stock
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 ...
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
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Splice-In
  • 4 Flat
  • No Converter
  • Optronics
  • Universal Fit

35 ft. Wishbone 4-Way Trailer Wiring Harness with 30" Ground Wire

Our Price: $19.66
In Stock
35' Wishbone 4-Way Trailer Wiring Harness with 30" Ground Wire This is a 35' split wishbone 4-way trailer wiring harness with four conductors and a 30" ground wire. Manufacturer
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Splice-In
  • 4 Flat
  • No Converter
  • Optronics
  • Universal Fit

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

Retail: $58.99
Our Price: $42.22
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 ...
electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits. Because most trailers run on a two-wire system - wherein the brake and turn
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • 4 Flat
  • Powered Converter
  • CURT
  • Hidden
  • No Tow Package

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

Retail: $112.03
Our Price: $93.71
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 ...
wiring matches that of your trailer Powered module connects to battery to avoid overloading vehicle's electrical system Constructed of 16-gauge bonded wire Comes with dust cap for 4-way flat connector
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • 4 Flat
  • Powered Converter
  • Tekonsha
  • Visible
  • No Tow Package

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

Retail: $115.95
Our Price: $75.63
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 ...
the electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits. Because most trailers run on a two-wire system - wherein the brake and
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • 4 Flat
  • Powered Converter
  • CURT
  • Hidden
  • No Tow Package

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

Retail: $115.95
Our Price: $72.34
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 ...
, battery-powered unit that bypasses the electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits. Because most trailers run on a two-wire system
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • 4 Flat
  • Powered Converter
  • CURT
  • Hidden
  • No Tow Package

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

Retail: $63.95
Our Price: $43.73
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 ...
lights: 6 amps per circuit Limited 1-year warranty Installation This custom-fit T-connector plugs into your vehicle's wiring harness, which is located in your rear cargo area. You will have to remove
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • 4 Flat
  • Powered Converter
  • CURT
  • Hidden
  • No Tow Package

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

Retail: $163.95
Our Price: $102.68
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 ...
electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits. Because most trailers run on a two-wire system - wherein the brake and turn
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • 4 Flat
  • Powered Converter
  • CURT
  • Hidden
  • No Tow Package

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

Retail: $72.95
Our Price: $53.89
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 ...
lights: 3 amps per circuit Tail lights: 6 amps per circuit Limited 1-year warranty Installation This custom-fit T-connector plugs into your vehicle's wiring harness, which is located behind the
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • 4 Flat
  • Powered Converter
  • CURT
  • Hidden
  • No Tow Package

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

Retail: $115.95
Our Price: $75.58
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 ...
electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits. Because most trailers run on a two-wire system - wherein the brake and turn
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Plug-In
  • 4 Flat
  • Converter
  • CURT
  • Hidden
  • No Tow Package