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4 wiring instructionthere are instructions for wiring the running light and license plate lights included. 4-way connectors & fitmentyou can install the trailer wire so quickly and easily through the 4-way connectors.
The trailer side ground wire is about 2ft. It can protect tow vehicle electronics from wiring shorts. 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. This trailer wire harness kit is completely sealed for a long corrosion-resistant installation. Not compatible with motorcycle trailer wiring, and you could confirm the fitment to be not the wrong item before ordering.

Wishbone style wiring setup- wishbone design makes it easier to wire to the taillights; simplifies installation process. 18 awg color coded wires- color coded 18 awg wires clearly identify each wire's function; makes installation safe and straight-forward.

Easy to use - cable has been stripped and color coded to simplify the installation. 10-14 awg, high quality, double prong, copper terminals ensure a solid connection every time.


Equipped with color-coded wires, these 4-prong trailer wiring connectors come ready to install. Versatile design.
Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of these vehicle-trailer connectors. Ready to install. The 72-inch wire loop provides plenty of extra length for a flexible installation. 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.

Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this trailer plug. 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.
Versatile design. It has 16-gauge wires and can be used to connect the taillights, brake lights and turn signals. Easy grip. It features tabs on the top and bottom for a better grip when plugging into your vehicle or unplugging. This trailer connector makes a great replacement 4-flat trailer wiring connector. Durable construction. Ready to install.

Shining in the dark: built-in two premium LEDs emit soft light to illuminate the patterns, easy for you to find the switch in the dark. Wide application: suitable for almost all 12V battery vehicles, such as jeeps, cars, motorcycles, ships, UTVs, ATVs, yachts and trailers.

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 4-way trailer wiring harness is built with surface mount technology. 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. Dust cover. This type of circuitry generates less heat, optimal light intensity and durable performance.

Green wire: passenger Side Stop/Turn Lights. Widely application: trailer light wire suitable for marine boat trailer, ATV trailer, horse trailer, and other cargo utility trailer hitches tow/haul vehicle must have 4-way plug.
4-way flat trailer harness kit: complying with SAE J1128 standards for a low voltage primary cable. 18 awg color coded wires wishbone style harness: 4 flat trailer wire is color-coded and bonded wire for easily installation. White wire: Ground Negative. Yellow wire: Driver Side Stop/Turn Lights. Constructed from the highest quality materials and superior quality guaranteed. The white ground wire is made of 18-gauge, reduce corrosion and makes installation safe.

Simply your wire harness 7-way copper blade molded into a heavy duty plug provides a fast and simplified way for wires connection as well as keeping all your trailer wiring in order.
Package included 1x 7-way trailer plug with junction box 4 x open gaskets 4 x Close gaskets. Convenient trailer wiring sturdy junction box with color marked 7-poles convenient for wiring left/right turn light brake signal lamp reverse light tail light etc Junction box is much easier than managing loose wires.
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
#adSUZCO #ad - This trailer wire harness kit also can work on an COPPER trailer based on the ground wire. The white grounding wire is so enough long to wiring. Extends wiring system provides more flexibility. The white ground wire is made of 18-gauge, which is corrosion resistant terminal. 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.4 wiring instructionthere are instructions for wiring the running light and license plate lights included. 4-way connectors & fitmentyou can install the trailer wire so quickly and easily through the 4-way connectors.
More information #ad
The different color wires are clearly identified as each wire's function, so you can make the installation safe and straight-forward. The 4 flat trailer wire is color-coded and bonded wire to easily splice into your trailer's wiring system, made of 18-gauge wire, no need for splicing wires. The trailer side ground wire is about 2ft. It can protect tow vehicle electronics from wiring shorts. 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. This trailer wire harness kit is completely sealed for a long corrosion-resistant installation. Not compatible with motorcycle trailer wiring, and you could confirm the fitment to be not the wrong item before ordering.
Brand | SUZCO #ad |
Manufacturer | SUZCO #ad |
Weight | 0.02 Pounds |
Part Number | SUZCO888888888 |
Model | 4350429910 |
More information #ad
2. ONLINE LED STORE
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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
#adONLINE LED STORE #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. 18 awg color coded wires- color coded 18 awg wires clearly identify each wire's function; makes installation safe and straight-forward.
More information #ad
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. 25' male & 4' female included- our 4-way trailer wiring harness includes both the male and female sides for added value.Brand | ONLINE LED STORE #ad |
Manufacturer | ONLINE LED STORE #ad |
Height | 2.5 Inches |
Length | 7.5 Inches |
Weight | 0.95 Pounds |
Width | 3.5 Inches |
Part Number | ACCEPSCBL0105 |
Model | 4336325634 |
More information #ad
3. ONLINE LED STORE
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ONLINE LED STORE 8ft 7-Way Trailer Plug Cord Wiring Harness 7-Pin Trailer Wire Cable Brake & Light Control 10-14AWG 7 Prong Trailer Light Cord Wiring Connector for RV
#adONLINE LED STORE #ad - The locking plug end features finger lugs for easy removal. Safe and secure connection - no more dangerous flickering lights or malfunctioning equipment. Life proof - commercial grade, kink free PVC sheathing is waterproof and corrosion resistant for years of reliable service.Easy to use - cable has been stripped and color coded to simplify the installation. 10-14 awg, high quality, double prong, copper terminals ensure a solid connection every time.
More information #ad
Exceptional versatility - perfect for trailers with brakes, keeping the refrigerator cool, reverse lights, and any other auxiliary power needs such as charging trailer battery, powering interior lights, etc. Painless replacement - easily upgrade the corroded old 7-way plug on your trailer, food truck, RV, or tow truck.Brand | ONLINE LED STORE #ad |
Manufacturer | ONLINE LED STORE #ad |
Height | 2.76 Inches |
Length | 9.45 Inches |
Weight | 2.38 Pounds |
Width | 8.67 Inches |
Part Number | ACCEPSCBL3021 |
More information #ad
4. LINKITOM
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25-Foot 18 AWG Color Corrosion Resistant Coded Wires with 4 Pin Flat Plug, LINKITOM 4-Way Trailer Wiring Harness Kits, for Utility Boat Trailer Lights
#adLINKITOM #ad - Complying with SAE J1128 Standards. 25ft wire harness: 21. 65ft length male wire harness and 3. 93ft female wire harness. 4-way 4-pin hitch trailer wiring harness with connectors.More information #ad
Installation easy through the 4-way connectors. 18 awg color coded wiring harness, more durable than the traditional copper coated aluminum wires and split Y-style color coded harness.Brand | LINKITOM #ad |
Manufacturer | LINKITOM #ad |
Part Number | LK-TCX4P |
More information #ad
5. CURT
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CURT 58050 Vehicle-Side and Trailer-Side 4-Pin Flat Wiring Harness with 72-Inch Wires
#adCURT #ad - They feature tabs on the top and bottom for a better grip when plugging in or unplugging. 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.Equipped with color-coded wires, these 4-prong trailer wiring connectors come ready to install. Versatile design.
More information #ad
Easy grip. They have 16-gauge wires and can be used to connect the taillights, brake lights and turn signals. Reliable connection. Durable construction. These vehicle-trailer connectors make great replacement 4-flat wiring plugs and sockets. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of these vehicle-trailer connectors. Ready to install. The 72-inch wire loop provides plenty of extra length for a flexible installation. 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.
Brand | CURT #ad |
Manufacturer | Curt Manufacturing #ad |
Height | 2 Inches |
Length | 7 Inches |
Weight | 0.3 Pounds |
Width | 2 Inches |
Part Number | 58050 |
Model | 58050 |
Warranty | Limited Lifetime |
More information #ad
6. CURT
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CURT 58030 Trailer-Side 4-Pin Flat Wiring Harness with 12-Inch Wires
#adCURT #ad - This 4-pin trailer wiring plug comes ready to splice into your existing trailer wiring. The 12-inch wire lead provides extra length for an easy installation. The 4-pin wiring design matches industry-standard 4-way flat sockets and can be used on a wide variety of trailers.Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this trailer plug. 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.
More information #ad
Reliable connection. Equipped with blunt-cut, color-coded wires, this 4-prong trailer wiring plug comes ready to install. Versatile design. It has 16-gauge wires and can be used to connect the taillights, brake lights and turn signals. Easy grip. It features tabs on the top and bottom for a better grip when plugging into your vehicle or unplugging. This trailer connector makes a great replacement 4-flat trailer wiring connector. Durable construction. Ready to install.
Brand | CURT #ad |
Manufacturer | Curt Manufacturing #ad |
Height | 2 Inches |
Length | 7 Inches |
Weight | 0.05 Pounds |
Width | 2 Inches |
Part Number | 58030 |
Model | 58030 |
Warranty | Limited Lifetime |
More information #ad
7. Nilight
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Nilight 10011W 16AWG Wiring Harness Kit-2 Leads LED Light Bar 12V On/Off 5 Pin Rocker Switch Power Relay Blade Fuse for Jeep Boat Trucks, 2 Years Warranty
#adNilight #ad - Efficient protection: power relay and inline blade fuse ACT as the first Line of defense against overcurrent and short circuit.Shining in the dark: built-in two premium LEDs emit soft light to illuminate the patterns, easy for you to find the switch in the dark. Wide application: suitable for almost all 12V battery vehicles, such as jeeps, cars, motorcycles, ships, UTVs, ATVs, yachts and trailers.
More information #ad
Two available leads: 12 feet extendable wiring harness, two Sets of light output connectors for dual light fixtures less than 180W. Package include: 1 x wiring harness kit, 1 x 5 pin LED rocker switch, 1 x instructions.Brand | Nilight #ad |
Manufacturer | Nilight #ad |
Height | 8 Inches |
Length | 11 Inches |
Weight | 0.9 Pounds |
Width | 2 Inches |
Part Number | 10011W |
Model | 10011W |
Warranty | 2 Years Warranty |
More information #ad
8. Curt Manufacturing
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G37, Nissan Rogue, Q60, CURT 56033 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, G35, Fits Select Infiniti G25
#adCurt Manufacturing #ad - This aftermarket, vehicle-trailer wiring harness is designed for select years of the Infiniti G25, G35, G37 and Q60 and Nissan Rogue. Easy to install. 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.
More information #ad
Vehicle-specific. 4-way trailer light wiring is popular on a variety of trailers, adding versatile towing options for your vehicle. Reliable power. Standard connector. This 4-way trailer wiring harness is built with surface mount technology. 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. Dust cover. This type of circuitry generates less heat, optimal light intensity and durable performance.
Brand | Curt Manufacturing #ad |
Manufacturer | CURT #ad |
Height | 3 Inches |
Length | 9 Inches |
Weight | 1.57 Pounds |
Width | 6 Inches |
Part Number | 56033 |
Model | 56033 |
Warranty | One-Year Limited Warranty |
More information #ad
9. LIMICAR
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25ft Trailer Wire, LIMICAR Trailer Wiring Harness Kit, Trailer Wiring Harness with 4 Flat Extension Connector, 4 Pin Flat Wishbond Trailer Wiring for Utility Boat Trailer Light Kit
#adLIMICAR #ad - Gives you the extra length, simply extend them with this extender. Please confirm the fitment with us before ordering. 25' trailer wiring harness: designed to split at the trailer tongue and run down each side of the trailer, just need to extend current truck to trailer wires.Green wire: passenger Side Stop/Turn Lights. Widely application: trailer light wire suitable for marine boat trailer, ATV trailer, horse trailer, and other cargo utility trailer hitches tow/haul vehicle must have 4-way plug.
More information #ad
Not compatible with motorcycle trailer wiring. Brown wire: Tail Lights. 25ft male & 4-flat female trailer wiring harness extension kit: fits Trailers under & over 80" wide. No need to splice your new wires, 4' trailer side ground wire is enough to use for your trailer. 4-way flat trailer harness kit: complying with SAE J1128 standards for a low voltage primary cable. 18 awg color coded wires wishbone style harness: 4 flat trailer wire is color-coded and bonded wire for easily installation. White wire: Ground Negative. Yellow wire: Driver Side Stop/Turn Lights. Constructed from the highest quality materials and superior quality guaranteed. The white ground wire is made of 18-gauge, reduce corrosion and makes installation safe.
Brand | LIMICAR #ad |
Manufacturer | LIMICAR #ad |
Part Number | 200578 |
More information #ad
10. Nilight
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Trailer Connector Cable Wiring Harness with Weatherproof Junction Box Suitable for RV Automotives Cars,2 Years Warranty, Nilight Heavy Duty 7 Way Inline Trailer Plug with 7 Gang Junction Box, 8 Feet
#adNilight #ad - Fit type: Universal. Flexible connection 8ft long cord with soft and durable PVC housing Flexible Connection The length prevents it from being strained during an emergency turn 7-Way Connects Brake Running Reverse Turn Signals and Auxiliary Power.Simply your wire harness 7-way copper blade molded into a heavy duty plug provides a fast and simplified way for wires connection as well as keeping all your trailer wiring in order.
More information #ad
Good sealing performance four open and four close sealed rubber gaskets are provided to make the entire junction box waterproof dustproof and corrosion-proof. Package included 1x 7-way trailer plug with junction box 4 x open gaskets 4 x Close gaskets. Convenient trailer wiring sturdy junction box with color marked 7-poles convenient for wiring left/right turn light brake signal lamp reverse light tail light etc Junction box is much easier than managing loose wires.
Brand | Nilight #ad |
Manufacturer | Nilight #ad |
Height | 1 Inches |
Length | 80 Inches |
Weight | 2.75 Pounds |
Width | 2 Inches |
Part Number | 50024R |
Model | 50024R |
Warranty | 2 Years Warranty |
More information #ad