Top 10 4-Pin Trailer Wiring – Towing Hitch Wiring

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1. SUZCO

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

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SUZCO #ad - Trailer wiring harness features a ground wire. This trailer wire harness kit also can work on an aluminum trailer based on the ground wire. Most standard light duty trailers will use a 4-pole flat connector. Enough lenght ground wirethis trailer wire extension with 4 way flat plug connector is designed to supply power for tail lights, turn and brake lights, as well as a ground connection.

It can protect tow vehicle electronics from wiring shorts. This trailer wire harness kit is completely sealed for a long corrosion-resistant installation. Extension includingthis 25foot 4 wire boat trailer wiring extension can conform to the sae j1128 specification. 4-way connectors & fitmentyou can install the trailer wire so quickly and easily through the 4-way connectors. Item typethis is a 25 foot male & female 4-flat marine trailer wiring harness with 4-way conductors and a white ground wire, designed to split at the trailer tongue and run down each side of the trailer.

Not compatible with motorcycle trailer wiring, turn, and you could confirm the fitment to be not the wrong item before ordering. 4 wiring instructionthere are instructions for wiring the running light and license plate lights included. Free-replacement service. The white ground wire is made of 18-gauge, which is corrosion resistant terminal. Extends wiring system provides more flexibility.
BrandSUZCO #ad
ManufacturerSUZCO #ad
Part NumberSUZCO888888888
Model4350429910

2. CURT

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CURT 58050 Vehicle-Side and Trailer-Side 4-Pin Flat Wiring Harness with 72-Inch Wires

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CURT #ad - The 4-pin wiring design matches industry-standard 4-way flat connectors and is compatible with a wide variety of trailers. These 4-pin trailer wiring plugs come ready to splice into your existing vehicle and trailer wiring.

Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of these vehicle-trailer connectors. Ready to install. Versatile design. Equipped with color-coded wires, these 4-prong trailer wiring connectors come ready to install. Reliable connection. They feature tabs on the top and bottom for a better grip when plugging in or unplugging. For long-lasting use and a reliable connection, the housing of these 4-pin trailer wiring plugs is made from durable black molded rubber that will never rust or corrode.

Durable construction. These vehicle-trailer connectors make great replacement 4-flat wiring plugs and sockets. Easy grip. They can be used to connect the taillights, brake lights and turn signals. The 72-inch wire loop provides plenty of extra length for a flexible installation.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length7 Inches
Weight0.3 Pounds
Width2 Inches
Part Number58050
Model58050
WarrantyLimited Lifetime

3. Miady

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

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Miady #ad - Simplify the installation process to save more time. 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.

Please feel free to contact us. 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. Long enough: the miady 25' trailer wiring harness gives you the extra length, just need to extend current truck to trailer wires. We provide 24*7 friendly customer support and also back our products for 18 months. Wide application: ideal for marine boat trailer, atv trailer, horse trailer, motorcycle trailer, and other cargo utility trailer hitches tow/haul vehicle must have 4-way plug .4

4ft lenght ground wire: equipped with 4 way flat plug connector with trailer ends and a white ground wire, designed to split at the trailer tongue and run down each side of the trailer. The trailer side ground wire is 4ft, it is enough to use for your trailer, which is completely sealed for a long corrosion-resistant installation. No need to splice your new wires, simply extend them with this extender.
BrandMiady #ad
ManufacturerMiady #ad
Part NumberTWH4M

4. MICTUNING

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4 Pin 25 Feet Male and 6 Feet Female Connector, 18 AWG Color Coded 4-Way Flat Wires for Under or Over 80 Inches Wide Trailers, MICTUNING Trailer Wiring Harness Extension Kit

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MICTUNING #ad - Suitable for all types of trailers including marine boat trailer, ATV trailer, horse trailer, motorcycle trailer, and other cargo utility trailer hitches.18awg color coded wires - sae j1128 rated, meets sae standards.

25' male & 6' female side - our 4-way trailer wiring harness includes 25 foot male & 6 foot female, and you can install the trailer wire so quickly and easily through the 4-way connectors. Wishbone style wiring setup - wishbone design makes it easier to wire to the taillights; The running lights are split into two wires on the trailer side for ease of wiring up the left and right sides without needing a jumper wire.

Reliable connection - 4-way flat plug connectors come ready to splice into your existing vehicle and trailer wiring, turn and brake lights, supply power for tail lights, as well as a ground connection. The 4 flat trailer wire is color-coded to clearly identify each wire's function, easily splice into your trailer's wiring system, no need for splicing wires. Universal - compatible with trailers under & over 80" wide.
BrandMICTUNING #ad
ManufacturerMICTUNING #ad
Part NumberMIC-TWH-309

5. Curt Manufacturing

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6, CURT 55567 Vehicle-Side Custom 4-Pin Trailer Wiring Harness for Select Mazda 3, FJ Cruiser, Toyota Camry

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Curt Manufacturing #ad - This type of circuitry generates less heat, optimal light intensity and durable performance. Dust cover. This 4-way trailer wiring harness is built with surface mount technology. 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. Reliable power. To promote long-lasting use and weather resistance, this 4-pin trailer wiring harness comes with a rubber dust cover. 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.

Vehicle-specific. 4-way trailer wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle. Standard connector. This vehicle-trailer wiring harness is designed for select models of the Mazda 3, Toyota Camry and Toyota FJ Cruiser, Mazda 6, ensuring the easiest possible installation and the most reliable wiring connection.
BrandCurt Manufacturing #ad
ManufacturerCurt Manufacturing #ad
Height3 Inches
Length9 Inches
Weight1.65 Pounds
Width6 Inches
Part Number55567
Model55567
WarrantyOne-Year Limited Warranty

6. CURT

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CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires

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CURT #ad - Equipped with blunt-cut, color-coded wires, this 4-prong trailer wiring plug comes ready to install. Durable construction. Reliable connection. Easy grip. The 12-inch wire lead provides extra length for an easy installation.

It can be used to connect the taillights, brake lights and turn signals. Ready to install. For long-lasting use and a reliable connection, the housing of this 4-pin trailer wiring plug is made from durable black molded rubber that will never rust or corrode. This 4-pin trailer wiring plug comes ready to splice into your existing trailer wiring. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this trailer plug.

This trailer connector makes a great replacement 4-flat trailer wiring connector. Versatile design. The 4-pin wiring design matches industry-standard 4-way flat sockets and can be used on a wide variety of trailers. It features tabs on the top and bottom for a better grip when plugging into your vehicle or unplugging.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length7 Inches
Weight0.05 Pounds
Width2 Inches
Part Number58030
Model58030
WarrantyLimited Lifetime

7. CZC AUTO

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

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CZC AUTO #ad - Sealed and anti-corrosion, can be submersible for a long time. Please feel free to contact us at first if there is any problem when you receive or use our products. 2-years warranty for quality-related issues, we take care of all quality-related issues with a REPLACEMENT OR FULL REFUND. Client support: 30-day money-back guarantee, return your undamaged czc auto product and receive a full refund for any reason.

Wire connection: color coded wire directly match the trailer wire system for easy and safe connection. Please find the picture and instruction for details. 2 years warranty supplied by CZC AUTO. The male and female plug pin size is standard which can match different standard male or female plug together. Total 29ft: 4ft long wire on female plug side for vehicle and 25ft on male side for trailer lights, equipment trailer, utility trailer, enclosed cargo trailer, such as over & under 80" wide boat trailer, dump trailer, long enough for all kinds of 12V 4-pin connection trailers, ATV trailer, car hauler trailer and so on.

We are always here to support you. White wire for grounding, yellow for left stop&turn, green wire for right stop&turn, brown wire which next to yellow is used for left running&license illumination, brown for running&license illuminationmale side, the one next to green is for right running. 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. 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.
BrandCZC AUTO #ad
ManufacturerCZC AUTO #ad
Part Number102016

8. Curt Manufacturing

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CURT 56165 Vehicle-Side Custom 4-Pin Trailer Wiring Harness for Select Toyota RAV4

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Curt Manufacturing #ad - The 4-flat trailer wiring can be used to connect trailer taillights, brake lights and turn signals. Electrical System Type: 3W. 4-way trailer wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle.

To promote long-lasting use and weather resistance, this 4-pin trailer wiring harness comes with a rubber dust cover. Vehicle-specific. This vehicle-trailer wiring harness is designed for select models of the Toyota RAV4, ensuring the easiest possible installation and the most reliable wiring connection. This type of circuitry generates less heat, optimal light intensity and durable performance. Standard connector.

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. Tail light Circuits-7. 5 amps. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements and internal corrosion. Turn and Brake Circuits-7. 5 amps. Dust cover.
BrandCurt Manufacturing #ad
ManufacturerCurt Manufacturing #ad
Height3 Inches
Length9 Inches
Weight1.47 Pounds
Width6 Inches
Part Number56165
Model56165
WarrantyLimited Lifetime

9. CURT

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

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CURT #ad - This 4-way trailer wiring harness is built with surface mount technology. Vehicle-specific. Dust cover. Reliable power. 4-way trailer light 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-pole trailer lighting wire harness comes with a rubber dust cover. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Honda Pilot factory tow package required. 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. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. Easy to install. Standard connector.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height3 Inches
Length9 Inches
Weight1.13 Pounds
Width6 Inches
Part Number56170
Model56170
WarrantyOne-Year Limited Warranty

10. Curt Manufacturing

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CURT 55379 Vehicle-Side Custom 4-Pin Trailer Wiring Harness for Select Toyota Pickup Trucks, Tacoma

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Curt Manufacturing #ad - Reliable power. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Toyota pickup and Tacoma. This type of circuitry generates less heat, optimal light intensity and durable performance. Dust cover. 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 4-way trailer wiring harness is built with surface mount technology. Vehicle-specific. Standard connector. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals.

Easy to install. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor, exterior elements and internal corrosion. This ensures the easiest possible installation and the most reliable wiring connection. 4-way trailer light wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle.
BrandCurt Manufacturing #ad
ManufacturerCurt Manufacturing #ad
Height3 Inches
Length9 Inches
Weight0.95 Pounds
Width4 Inches
Part Number55379
Model55379
WarrantyOne-Year Limited Warranty