As an Amazon Associate I earn from qualifying purchases.

1. ONLINE LED STORE

#ad

4 Pin Flat Trailer Wiring Harness Kit Wishbone-Style SAE J1128 Rated 25' Male & 4' Female 18 AWG Color Coded Wires 4 Way Flat 5 Wire Harness For Utility Boat Trailer Lights Kits

#ad
ONLINE LED STORE #ad - 18 awg color coded wires- color coded 18 awg wires clearly identify each wire's function; makes installation safe and straight-forward. 25' male & 4' female included- our 4-way trailer wiring harness includes both the male and female sides for added value.

For trailers under & over 80" wide- long total wire length 25' plus 4' make this trailer harness kit perfect for trailers measuring under or over 80" wide.
More information #ad
Sae j1128 rated- meets sae standards for a low voltage primary cable intended for use at a nominal system voltage of 60 V DC 25 V AC or less in surface vehicle electrical systems; backed by a 2 year warranty. Wishbone style wiring setup- wishbone design makes it easier to wire to the taillights; simplifies installation process.
BrandONLINE LED STORE #ad
ManufacturerONLINE LED STORE #ad
Height2.5 Inches
Length7.5 Inches
Weight0.95 Pounds
Width3.5 Inches
Part NumberACCEPSCBL0105
Model4336325634
More information #ad

2. CZC AUTO

#ad

CZC AUTO Trailer Wiring Harness Kit 4-Way Wishbone Style, Y Style 18AWG Pure Copper Core Color Coded Wire with Standard 4-pin Flat Plug Connector, 4' Female and 25' Male for 12V Trailer Boat Marine

#ad
CZC AUTO #ad - We are always here to support you. Please find the picture and instruction for details. 2 years warranty supplied by CZC AUTO. White wire for grounding, yellow for left stop&license illumination, brown for running&turn, green wire for right stop&license illuminationmale side, brown wire which next to yellow is used for left running&turn, the one next to green is for right running.

Pure copper core: czc auto trailer wiring harness uses superior materials, 18 gauge 100% pure copper core covered by PVC with UV, PVC plug with stain nickel plated copper terminals inside. The male and female plug pin size is standard which can match different standard male or female plug together.
More information #ad
There are 2pcs brown running wires which splite from the male plug to left and right tail lights for simple connection, no jumper wires needed. Please feel free to contact us at first if there is any problem when you receive or use our products.

Sealed and anti-corrosion, can be submersible for a long time. Wire connection: color coded wire directly match the trailer wire system for easy and safe connection. 2-years warranty for quality-related issues, we take care of all quality-related issues with a REPLACEMENT OR FULL REFUND. Y style: wishbone style designed boat trailer wire harness, 4pcs wires for 4-pin female plug and 5PCS wires for 4-flat male connector. Client support: 30-day money-back guarantee, return your undamaged czc auto product and receive a full refund for any reason.
BrandCZC AUTO #ad
ManufacturerCZC AUTO #ad
Part Number102016
More information #ad

3. Miady

#ad

18 AWG Color Coded Wires Trailer Light Wiring Harness Extension with 4ft White Ground Wire, Miady 25ft Trailer Wiring Harness with 4 Flat Connector

#ad
Miady #ad - Simplify the installation process to save more time. Simplified connection: come with 18 awg color coded wires clearly identify each wire's function, makes it much easier for wires connection as well as adding more convenience and installation safe and straight-forward. No need to splice your new wires, simply extend them with this extender.

4ft lenght ground wire: equipped with 4 way flat plug connector with trailer ends and a white ground wire, it is enough to use for your trailer, designed to split at the trailer tongue and run down each side of the trailer.
More information #ad
Wide application: ideal for marine boat trailer, horse trailer, atv trailer, motorcycle trailer, and other cargo utility trailer hitches tow/haul vehicle must have 4-way plug . The trailer side ground wire is 4ft, which is completely sealed for a long corrosion-resistant installation.

Long enough: the miady 25' trailer wiring harness gives you the extra length, just need to extend current truck to trailer wires. Please feel free to contact us. We provide 24*7 friendly customer support and also back our products for 18 months. Wishbone style wiring setup designed: constructed with wishbone style Wiring Setup and 4 way connectors design makes the running light circuit and splits it at the trailer connector, so you do not have to run a jumper wire from one taillight to the other.
BrandMiady #ad
ManufacturerMiady #ad
Part NumberTWH4M
More information #ad

4. CURT

#ad

4-Pin, 7-Pin, CURT 55774 Dual-Output Vehicle-Side Trailer Wiring Harness Connectors for USCAR

#ad
CURT #ad - Reliable connection. They connect the taillights, electric trailer brakes and aux power. Versatile design. The 7-pin socket has a spring-loaded dust cover that keeps the connection points dry and protected when not in use.

This dual-output connector is a great upgrade for a variety of vehicles with a USCAR socket. Weather-resistant. Durable construction. It provides two standard trailer wiring sockets, a 4-way flat and an RV blade 7-way round socket, allowing for versatile towing options.
More information #ad
This two-way trailer wiring socket is designed to outlast weather exposure. Uscar-specific. For long-lasting use and a reliable connection, the housing of this dual 7-pin and 4-pin trailer wiring socket is made from durable black plastic that will never rust or corrode.

These trailer wiring sockets come ready to plug into existing vehicle wiring, turn signals, brake lights, reverse lights, using the factory USCAR socket. This trailer wiring harness socket is designed for specific vehicles with an industry-standard USCAR socket.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length9 Inches
Weight1.13 Pounds
Width4 Inches
Part Number55774
Model55774
WarrantyManufaturer warranty
More information #ad

5. SUZCO

#ad

SUZCO 25 Foot 4 Wire 4-Flat Trailer Light Wiring Harness Extension Kit, 4-Way Plug 4 Pin Male & Female Extension Connector & Wishbone-Style with 18 Gauge White Ground Wire with SAE J1128

#ad
SUZCO #ad - The 4 flat trailer wire is color-coded and bonded wire to easily splice into your trailer's wiring system, no need for splicing wires. Most standard light duty trailers will use a 4-pole flat connector. 4 wiring instructionthere are instructions for wiring the running light and license plate lights included.

4-pin connectors are available allowing the basic hookup of the three lighting functions running, turn, and brake lights plus one pin is provided for a ground wire. Not compatible with motorcycle trailer wiring, and you could confirm the fitment to be not the wrong item before ordering.
More information #ad
The trailer side ground wire is about 2ft. The white grounding wire is so enough long to wiring. Trailer wiring harness features a ground wire. Free-replacement service. Includes a 4-feet trunk connector, splices, and clips.

The different color wires are clearly identified as each wire's function, so you can make the installation safe and straight-forward. Extends wiring system provides more flexibility. This trailer wire harness kit is completely sealed for a long corrosion-resistant installation. Item typethis is a 25 foot male & female 4-flat marine trailer wiring harness with 4-way conductors and a white ground wire, made of 18-gauge wire, designed to split at the trailer tongue and run down each side of the trailer.
BrandSUZCO #ad
ManufacturerSUZCO #ad
Part NumberSUZCO888888888
Model4350429910
More information #ad

6. CURT

#ad

T100, Hilux, CURT 55513 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Select Toyota Tacoma

#ad
CURT #ad - This aftermarket, vehicle-trailer wiring harness is designed for select years of the Toyota Tacoma, T100 and Hilux. This type of circuitry generates less heat, optimal light intensity and durable performance. Dust cover.

Vehicle-specific. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. Easy to install. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover.
More information #ad
Standard connector. This 4-way trailer wiring harness is built with surface mount technology. Reliable power. 4-way trailer light wiring is popular on a variety of trailers, adding versatile towing options for your vehicle.

It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements. No cutting! no splicing! this trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer.
BrandCURT #ad
ManufacturerCURT #ad
Height3 Inches
Length9 Inches
Weight0.9 Pounds
Width4 Inches
Part Number55513
Model55513
WarrantyOne-Year Limited Warranty
More information #ad

7. Curt Manufacturing

#ad

Acura, Isuzu Vehicles, CURT 55336 Vehicle-Side Custom 4-Pin Trailer Wiring Harness for Select Honda

#ad
Curt Manufacturing #ad - Note: factory tow package required. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. Standard connector. No cutting! no splicing! this trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer or accessories.

This aftermarket, cl, acura integra, cr v, vehicle-trailer wiring harness is designed for select years of the Honda Accord, Odyssey, RL, Pilot and Prelude, element, TL and MDX and Isuzu Oasis.
More information #ad
Easy to install. To promote long-lasting use and weather resistance, protecting it against the outdoor, this 4-pole trailer lighting wire harness comes with a rubber dust cover.

4-way trailer light wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle. Dust cover. Vehicle-specific. This ensures the easiest possible installation and the most reliable wiring connection. This 4-way trailer wiring harness is built with surface mount technology. Reliable power. It easily fits onto the 4-way flat connector when not in use, exterior elements and internal corrosion.
BrandCurt Manufacturing #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length9 Inches
Weight0.7 Pounds
Width4 Inches
Part Number55336
Model55336
WarrantyOne-Year Limited Warranty
More information #ad

8. CURT

#ad

Outback, Forester, Crosstrek, XV, Select Subaru Ascent, CURT 56040 Vehicle-Side Custom 4-Pin Trailer Wiring Harness

#ad
CURT #ad - 4-way trailer light wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Subaru Ascent, outback, forester, Crosstrek and XV Crosstrek factory tow package required.

Reliable power. This type of circuitry generates less heat, optimal light intensity and durable performance. Standard connector. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals.
More information #ad
Vehicle-specific. No cutting! no splicing! this trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer.

Dust cover. This 4-way trailer wiring harness is built with surface mount technology. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements. Easy to install.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height9 Inches
Length4 Inches
Weight0.75 Pounds
Width2 Inches
Part Number56040
Model56040
WarrantyOne Year Limited
More information #ad

9. Curt Manufacturing

#ad

CURT 56161 Vehicle-Side Custom 4-Pin Trailer Wiring Harness for Select Honda Odyssey

#ad
Curt Manufacturing #ad - This 4-way trailer wiring harness is built with surface mount technology. Easy to install. No cutting! no splicing! this trailer wiring harness plugs into existing factory wiring on your vehicle and equips it with a standard 4-pin trailer wiring connector for plugging in and towing a trailer.

Reliable power. This vehicle-trailer wiring harness is designed for select models of the Honda Odyssey, ensuring the easiest possible installation and the most reliable wiring connection.
More information #ad
Standard connector. Dust cover. 4-way trailer wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle. This type of circuitry generates less heat, optimal light intensity and durable performance.

To promote long-lasting use and weather resistance, this 4-pin trailer wiring harness comes with a rubber dust cover. Vehicle-specific. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements and internal corrosion. The 4-flat trailer wiring can be used to connect trailer taillights, brake lights and turn signals.
BrandCurt Manufacturing #ad
ManufacturerCurt Manufacturing #ad
Height3 Inches
Length9 Inches
Weight1 Pounds
Width4 Inches
Part Number56161
Model56161
WarrantyOne Year Limited
More information #ad

10. CURT

#ad

Select Honda Pilot, CURT 56170 Vehicle-Side Custom 4-Pin Trailer Wiring Harness

#ad
CURT #ad - Standard connector. 4-way trailer light wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals.

To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. This type of circuitry generates less heat, optimal light intensity and durable performance.
More information #ad
It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements. Easy to install. Dust cover. This 4-way trailer wiring harness is built with surface mount technology.

No cutting! no splicing! this trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Honda Pilot factory tow package required. Reliable power. Vehicle-specific.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height3 Inches
Length9 Inches
Weight1.13 Pounds
Width6 Inches
Part Number56170
Model56170
WarrantyOne-Year Limited Warranty
More information #ad