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Result: 4 Prong Trailer Wiring Harness

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

Retail: $25.59
Our Price: $22.90
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
  • 4 Flat
  • Trailer Hitch Wiring
  • Universal Fit
  • Vehicle End Connector
  • Optronics
  • Splice-In
  • No Converter

Adapter 4-Pole to 7-Pole and 4-Pole

Our Price: $59.13
In Stock
Adapter converts from 4 pole wiring on vehicle to 7-pole round plug and 4-pole flat. Additional wire leads for brake, power and accessory.Features: Adapter converts from 4-pole wiring on your vehicle to 7-pole round plug and 4-pole flat wiring for trailer side Adds additional wire leads for brakes, power, and accessory wiring Wire
  • 7 Blade to 4 Flat
  • Wiring Adapters
  • Universal Fit
  • Hopkins

Curt Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat

Retail: $54.95
Our Price: $35.54
In Stock
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. power Dust covers keep connectors clean when not in use Split loom keeps wires contained and well protected Simple installation Wiring harness plugs into existing 4-way flat connector and hardwires to
  • 4 Flat to 4 Flat
  • 4 Flat to 7 Blade
  • Wiring Adapters
  • Universal Fit
  • CURT

7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket - Vehicle End

Retail: $55.39
Our Price: $42.48
This 7- and 4-pole trailer connector eliminates the need for an adapter and allows you to tow a trailer with either a 7- or 4-pole plug. Socket connects to your vehicle's OEM wiring system and ...
Features: 7- and 4-Pole trailer connector with mounting bracket Has high-impact, ABS plastic construction Stainless steel spring for easy cover operation Rubber gasket provides weather-resistant
  • 4 Flat
  • 7 Blade
  • Trailer Hitch Wiring
  • No Tow Package
  • Vehicle End Connector
  • Hopkins
  • No Converter

Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard

Retail: $52.29
Our Price: $46.90
In Stock
Replace your damaged 7-way, RV-style, trailer-end connector with this molded cable. Durable cable covering resists damage. Wiring codes are RV standard. easy positioning Molded cable sleeving protects wires Durable covering is insulated and corrosion resistant Simple installation Hardwire to existing trailer wiring Meets SAE standards Specs: Cable length
  • 7 Blade
  • Trailer Connectors
  • Trailer End Connector
  • Hopkins

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

Retail: $84.95
Our Price: $53.43
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
  • 4 Flat
  • Trailer Hitch Wiring
  • No Tow Package
  • Vehicle End Connector
  • CURT
  • Plug-In
  • 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.

Kristin
Kristin etrailer team member
Kristin etrailer team member

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

Retail: $57.25
Our Price: $47.60
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. 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
  • 4 Flat
  • Trailer Hitch Wiring
  • No Tow Package
  • Vehicle End Connector
  • Tekonsha
  • Plug-In
  • Powered Converter
  • Hidden

Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter

Retail: $25.75
Our Price: $15.42
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
  • 4 Flat to 5 Flat
  • Wiring Adapters
  • Universal Fit
  • Tow Ready

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

Our Price: $6.04
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
  • 4 Flat
  • Trailer Connectors
  • Trailer End Connector
  • Hopkins

Pollak 7 Pole to 4 Way Connector Adapter

Retail: $20.74
Our Price: $8.71
In Stock
Quickly and easily convert a 7-pole, RV-style connector to a 4-way, flat connector with this RV connector adapter. Adapter has a non-corrosive nylon shell.Features: 7-Pole RV connector to 4-way flat adapter Promotes quick and easy conversion of 7-pole, RV-style connector to 4-way flat connector Allows 1 vehicle to tow either campers or boat trailers
  • 7 Blade to 4 Flat
  • Wiring Adapters
  • Universal Fit
  • Pollak

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

Retail: $130.95
Our Price: $71.94
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 ...
how the tail lights on your vehicle operate. This converter is a circuit-protected, battery-powered unit that bypasses the electrical routes that are used by a basic wiring harness. As a result, there
  • 4 Flat
  • Trailer Hitch Wiring
  • Universal Fit
  • Vehicle End Connector
  • CURT
  • Splice-In
  • Powered Converter

7-Pole and 4-Pole Trailer Connector Sockets w/ Mounting Bracket and Wiring - Vehicle End

Our Price: $81.39
Tow a trailer with either a 7-way or 4-way plug with this dual vehicle-end connector. Included pigtail harness hardwires into your vehicle and the connector end mates with the 7-pole socket to form a ...
Features: Dual connector lets you hook up to a trailer with either a 7-pole, RV-style plug or a 4-way flat plug Pigtail harness hardwires into your vehicle and connects to 7-way socket Includes
  • 4 Flat
  • 7 Blade
  • Trailer Hitch Wiring
  • No Tow Package
  • Vehicle End Connector
  • Hopkins
  • No Converter

25 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 25' Ground

Retail: $28.39
Our Price: $22.90
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
  • 4 Flat
  • Trailer Hitch Wiring
  • Universal Fit
  • Vehicle End Connector
  • Optronics
  • Splice-In
  • No Converter

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way and 4-Pole Flat Connectors

Retail: $57.99
Our Price: $33.53
In Stock
Quickly and easily install a 7-way and a 4-way trailer connector on your vehicle with this custom harness. Connector plugs directly into OEM tow package wiring harness - no cutting, splicing or ...
harness, which is located behind the rear bumper, on the driver's side. Once installation is complete, the connectors will be stowed beneath your vehicle, near the trailer hitch. A mounting bracket is
  • 4 Flat
  • 7 Blade
  • Trailer Hitch Wiring
  • Factory Tow Package
  • Vehicle End Connector
  • CURT
  • Plug-In
  • No Converter

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

Retail: $115.95
Our Price: $72.92
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
  • 4 Flat
  • Trailer Hitch Wiring
  • No Tow Package
  • Vehicle End Connector
  • CURT
  • Plug-In
  • Powered Converter
  • Hidden

Wesbar 4-Way Flat Trailer Wiring Harness - 20' Long

Our Price: $26.04
In Stock
Wishbone-style harness features a 4-pole flat trailer-end connector. Ground wire is 3' long.Features: Provides simple, efficient method for rewiring your trailer with a 4-way flat trailer-end connector 2 Brown wires, one with the green wire and the other with the yellow, make up the
  • 4 Flat
  • Trailer Hitch Wiring
  • Universal Fit
  • Vehicle End Connector
  • Wesbar
  • Splice-In
  • No Converter

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

Our Price: $14.63
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. 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
  • 4 Flat
  • Trailer Connectors
  • Trailer End Connector
  • Wesbar

Hopkins Endurance Multi-Tow Trailer Connector Adapter - 7-Way to 6-Way, 5-Way or 4-Way

Retail: $34.56
Our Price: $29.99
In Stock
Heavy-duty trailer adapter features a unique Quick-Change wiring plug that lets you switch between 6-way wiring codes quickly and easily. Outlet for 4-way and 5-way plugs is also built in. Terminals ...
trailer wiring codes - center-pin brake or center-pin hot Simply remove plug at base of connector, turn it around and plug it back in - no need to rewire Reinforced, easy-grip covers Open 180 degrees for
  • 7 Blade to 4 Flat
  • 7 Blade to 5 Flat
  • 7 Blade to 6 Round
  • Wiring Adapters
  • Universal Fit
  • Hopkins

20 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 30" Ground

Retail: $21.61
Our Price: $14.84
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
  • 4 Flat
  • Trailer Hitch Wiring
  • Universal Fit
  • Vehicle End Connector
  • Optronics
  • Splice-In
  • No Converter

7-Way Molded Trailer Wire Connector, 4' Long

Retail: $60.39
Our Price: $40.13
In Stock
Trailer Connector RV Style 7-Way Blade with 4' lead Pre-wired 7-Way Trailer Connector Measures 4 feet long including connector Wire gauges: 14 Gauge - red, brown, green, and yellow 12 Gauge -
  • 7 Blade
  • Trailer Connectors
  • Trailer End Connector
  • Hopkins

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

Retail: $39.34
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
  • 4 Flat
  • Trailer Hitch Wiring
  • Universal Fit
  • Vehicle End Connector
  • Optronics
  • Splice-In
  • No Converter

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

Retail: $15.42
Our Price: $14.34
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
  • 4 Flat
  • Trailer Hitch Wiring
  • Universal Fit
  • Vehicle End Connector
  • Optronics
  • Splice-In
  • No Converter

Hopkins Endurance 4-Way Flat Trailer Wiring Harness - 20' Long

Retail: $43.98
Our Price: $26.52
In Stock
Wishbone-style Y-harness features a 4-pole flat connector with a convenient, simple-to-use, easy-pull grip for effortless disconnect. Rust-resistant terminals are further protected by a molded dust ...
Features: Provides simple, efficient method for rewiring your trailer with a 4-way flat trailer-end connector Wishbone design - Y-harness contains 2 separate, brown tail light wires Left-side tail
  • 4 Flat
  • Trailer Hitch Wiring
  • Universal Fit
  • Vehicle End Connector
  • Hopkins
  • Splice-In
  • No Converter

Reese Multi-Plug Wiring Harness for Factory Tow Package - 7-Way and 4-Way Flat Trailer Connectors

Retail: $72.00
Our Price: $52.57
In Stock
Quickly and easily install this custom harness to get a 7-way and a 4-way trailer connector on your vehicle. Connector plugs into OEM tow package wiring harness - no cutting or splicing required ...
5-pole and 6-pole adapters (sold separately) Multi-Plug design is ideal for towing trailers with different style trailer connectors Simple installation - no cutting or splicing required Harness plugs into
  • 4 Flat
  • 7 Blade
  • Trailer Hitch Wiring
  • Factory Tow Package
  • Vehicle End Connector
  • Reese
  • Plug-In
  • No Converter