The Best 4 wire trailer wiring of 2022 – Reviewed and Top Rated
After hours researching and comparing all models on the market, we find out the Best 4 wire trailer wiring of 2022. Check our ranking below.
2,099 Reviews Scanned
- HIGH-PERFORMANCE 4 CONDUCTOR STRANDED WIRE – Experience unparalleled performance with our High-Grade CCA 14 Gauge 4 Conductor Stranded Wire. Its unique composition boasts a higher copper content for superior conductivity and electrical performance. The significantly thicker copper coating, unlike standard CCA wires, combines aluminum's advantages with copper's conductivity, ensuring optimal performance and cost-effectiveness. The ultimate choice in the market!
- DURABLE AND FLEXIBLE BUILD – Meticulously constructed with high-standard materials and insulated using premium flexible PVC jacketing, our 4-Way Trailer Cord is built to last. Its sturdy, heavy-duty design allows it to withstand even the harshest weather conditions, ensuring reliable performance during every towing operation.
- EFFORTLESS INSTALLATION WITH COLOR-CODED WIRES – Simplify your trailer's electrical setup with our 4-Way Trailer Wire, featuring four color-coded wires (White, Brown, Yellow, Green). Easily connect your trailer lights, brakes, turn signals, auxiliary power, and other essential components. The intuitive color-coding system allows for quick identification and hassle-free installation, even for those with limited experience.
- VERSATILE APPLICATIONS – Designed to accommodate a wide variety of applications, our 4-Way Trailer Wire is suitable for trailers, RVs, campers, motorcycles, golf carts, caravans, food vans, and any other 12-volt setups. Meets PC and P2 rating of DOT FMVSS 108/SAE Requirements
- MULTIPLE SIZES FOR YOUR CONVENIENCE – To cater to your specific needs and requirements, our 4-Way Trailer Wiring Extension comes in convenient lengths of 25 Ft., 50 Ft., and 100 Ft.
- Product Size: This is a 25-foot 4-way boat trailer extension wire
- Material: Made of heavy duty materials, it can resist corrosion for a long time
- Design: This trailer connecting wire is equipped with a 4-way flat plug connector, which is used to supply power for tail lights, turn signals and brake lights, and grounding connection; It is convenient to use and saves time
- Application: It is widely used in marine trailers, horse trailers, motorcycle trailers, ATV trailers and other multi-purpose cargo trailer hitch devices (note: there must be 4-way plug)
- Package: 1 trailer light wiring harness extension
- ●Copper Clad Aluminum 4-wire bonding, 4 wires are the same length (100ft). This is designed for general trailer rewiring, bonded to form parallel multi-conductor cables. This spool of 14-gauge bonded wiring includes 100 foot of color-coded wire for rewiring a trailer or splicing in a connector. The 4-wire construction can be used for either 4-way flat or 4-way round plugs and sockets.
- ●CCA 100 foot per spool/roll. The trailer cable wire has a black jacket and 4 conductors that are green, white, brown, and yellow. It has a 14-gauge, 60 volts. All copper strand core within general purpose thermoplastic (GPT) insulation The thermoplastic insulation operates satisfactorily between extreme temperatures.
- ●Color-coded wires (green, yellow, brown, white) for easier splicing, wire spool can be divided into single wires for use, standard 4-way wire for rewiring a trailer or a similar application. Meets or exceeds S.A.E. J1128 specifications. Trailer Wire is resistant to grease, oil, and acids.
- ●The copper clad aluminum 4 wire bonded has printed functions on the wire and is great for all your basic wiring needs. Standard 4-way for rewiring trailers or similar applications. Bonded Parallel Trailer Wire is designed especially for RVs, and boat utility trailers.
- ●It includes 14 gauge on the ground and 14 gauge on all others. If you have any questions, please contact us, we will reply as soon as possible within 24 hours.
- Wire Length Details- Our 4-way trailer wiring harness includes 4 pin 21.65ft male & 3.94ft female extension connector and Install the accessory kit. this 25 ft trailer wiring harness is made of 18-gauge wire, designed to split at the trailer tongue and run down each side of the trailer.
- Durable & Corrosion Resistant- The use of high quality pure copper wire and tin plated layer to achieve the best electrical conductivity and oxidation resistance, and the use of high quality PVC material for the best anti-corrosion and anti-aging ability. Work perfectly even with sea water.
- Connect quickly- Male plug with 5 wires, female plug with 4 wires. And you can install the trailer wire so quickly and easily through the 4-way connectors and Matching installation accessories. It matches with any other standard 4 pin flat plugs.
- Wire Connect Tips- Wires are color coded and bonded, Green- Right Turn Lights/Brakes, Yellow- Left Turn Lights/Brakes, Brown- Tail Lights/Running Lights, White-Ground Wire.
- Wide Application- The trailer wiring harness is suitable for under 80" wide trailers, such as marine boat trailer, horse trailer and other cargo utility trailer.
- 100 percent copper 4 wire bonded
- Ideal for all basic wiring needs
- 16 gauge on ground, 18 gauge on all others
- 25 feet long
- Printed wire functions for easy wire reference
- 【ENOUGH LENGTH】Enough 100ft 14gauge 4 wire trailer spool, made of high-quality Copper-Clad Aluminum (CCA) material, experiences an unparalleled performance. All four wires are 100ft long, providing sufficient cable length for trailer wiring replacements. This is designed for general trailer rewiring, bonded to form parallel multi-core cables. 4-wire construction is available with 4-way flat or 4-way round plugs and receptacles.
- 【EASY INSTALLATION】The Copper-Clad Aluminum 14 AWG color-coded fork harness wires are four color-coded (white, brown, yellow, green), making it easier to distinguish different functions and enable easy installation. White wire: ground wire. Brown wire: taillight. Yellow wire: left turn signal. Green wire: The right turn signal. The spool can be divided into single lines for use. The white ground wire is 14 gauge to minimize corrosion and ensure a safe installation.
- 【SAE J1128】This trailer wiring harness meets and exceeds SAE J1128 standards. Trailer lines are grease, oil, and acid-resistant. and ensure your driving safety. The spool is rated for 60V, the wire gauge is 14Ga, and all stranded cores have General Purpose Thermoplastic (GPT) insulation. Its rugged and durable construction means it can withstand harsh weather conditions, ensuring you have a smooth use. And the spool is made of environmentally plastic materials.
- 【WIDE APPLICATION】Our CCA 4-way bonded flat trailer wires are designed to fit a wide range of applications, perfect for all your basic wiring needs. Suitable for trailers, RVs, campers, boat trailers, carriages, motorcycles, ATV trailers, and any other 12V device.
- 【AFTER-SALE WARRANTY】If you encounter any product problems, please feel free to contact us, we will reply as soon as possible within 24 hours and provide excellent after-sales service.
- RELIABLE AND SAFE: The 4-Pin Flat 5-Wire Harness Kit is made of thick PVC-coated wire material that resists corrosion, and the plug cover keeps dirt and water out when not in use. The 18AWG pure copper wire has excellent conductivity and is protected by black nylon mesh tubing. You can rest easy in all weather, in all environments.
- EASY INSTALLATION: The 4-pin 5-wire trailer wiring harness adapter features a forked design that eliminates the need for splicing and greatly simplifies the wiring process, and the colour-coded labels on the harness and the included guide will help you to wire your trailer with ease, just like a professional electrician.
- THE RIGHT SIZE: 22 feet of 4-pin, 5-conductor flat cable and 2.5 feet of ground wire provide enough length to easily rewire tail lights on RVs, trucks, boats, snowmobiles and other utility trailers. It is ideal for trailers under or over 80 inches wide.
- VERSATILE APPLICATIONS: Designed to mate with industry standard 4-way flat sockets, the 4-Pin 5-Wire Trailer Connector Replacement provides your trailer with a male connector that can be used to replace frayed or broken wires on a variety of trailers.
- WHAT YOU GET：A reliable wiring solution for trailer lights-4 Pin Flat 5 Wiring Harness Kit , If you have any questions about the product, please contact us in time, as a responsible seller, we will provide you with a satisfactory solution within 24 hours.
- 100FT Copper Clad Aluminum Trailer Wiring Harness Kit: 14-Gauge bonded trailer wiring includes 100 foot of color-coded wire for rewiring a trailer or splicing in a connector. LIMICAR Trailer Wiring Harness suitable for trailers, trucks, and more.
- Color Coded Wires Wishbone Style Trailer Wiring: 4 flat trailer wire is color-coded and bonded wire for easily installation. White wire: Ground (Negative). Brown wire: Tail Lights. Yellow wire: Driver Side Stop/Turn Lights. Green wire: Passenger Side Stop/Turn Lights.
- 100 Foot Per Spool/Roll Boat Trailer Wiring Kit: Complying with SAE J1128 standards and come with high-quality PVC insulating tape. Constructed from the highest quality materials and superior quality guaranteed.
- 14-Gauge, 60 Volts Trailer Wiring Harness: The 4-wire construction can be used for either 4-way flat or 4-way round plugs and sockets. The white ground wire adopts a 14 wire gauge to reduce corrosion and ensure safe installation.
- Widely Applications: The 100ft 14 gauge trailer wire can used in a trailer, truck, off-road, horse trailer, ATV trailer and car coasting. Any problems, please feel free to contact with us.
- 21FT Male & 4-Flat Female Trailer Wiring Harness Extension Kit: Fits Trailers under & over 80" wide. Wire length (21' & 4') makes this trailer harness kit perfect for trailers measuring under or over 80" wide.
- 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). Brown wire: Tail Lights. Yellow wire: Driver Side Stop/Turn Lights. Green wire: Passenger Side Stop/Turn Lights. The white ground wire is made of 18-gauge, reduce corrosion and makes installation safe.
- 25' Trailer Wiring Harness: Designed to split at the trailer tongue and run down each side of the trailer, 4' trailer side ground wire is enough to use for your trailer. Gives you the extra length, just need to extend current truck to trailer wires. No need to splice your new wires, simply extend them with this extender.
- 4-Way Flat Trailer Harness Kit: Complying with SAE J1128 standards for a low voltage primary cable. Constructed from the highest quality materials and superior quality guaranteed.
- Widely Application: Trailer Light Wire Suitable for marine boat trailer, horse trailer, ATV trailer, and other cargo utility trailer hitches (tow/haul vehicle must have 4-way plug). Not compatible with motorcycle trailer wiring. Please confirm the fitment with us before ordering.
- 18 Gauge Color Coded Wires Wishbone Trailer Wiring: SAE J1128 RATED. Wishbone design makes it quickly, safety and easy to connect to the trailer. The 4 wire trailer wire is color-coded to clearly identify each wire's function, easily splice into your trailer's wiring system.
- Durable & Corrosion Resistant: 4 Pin Trailer Connector adopts with high quality PVC material to achieve the best electrical conductivity and oxidation resistance. Work perfectly even with sea water. The 4 pin trailer connector is color coded and welded, which is easy to be spliced into the wiring system of the trailer without splicing wires.
- Easy to Install Trailer Wiring Harness: White wire: Ground (Negative). Brown wire: Tail Lights. Yellow wire: Driver Side Stop/Turn Lights. Green wire: Passenger Side Stop/Turn Lights. 4-flat trailer plug easily connect to your existing vehicle and trailer wiring. Please note, it CAN'T use for motorcycle trailer wiring. The white ground wire is 42".
- 35FT Male Trailer Wiring Harness: Includes 1 x trailer wiring harness kit for reducing corrosion and avoiding waste time. The trailer wiring kit is designed with a 4-way flat plug connector, which is used to supply power for tail lights, turn signals and brake lights, and grounding connection. It is easy to cross a wire from one tail light to another.
- Applications: This 35FT Trailer Light Wiring Kit makes it possible to extend current truck to trailer wires. No need to splice your new wires, just extend them with this extender. Ideal for marine boat trailer, horse trailer, motorcycle trailer, ATV trailer, and other cargo utility trailer hitches which have 4-way plug.
Last update on 2025-06-26 / Affiliate links / Images from Amazon Product Advertising API
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FAQ:
Q: How to wire a 4 pin trailer connector?
A: Power&Ground. The white wire must be attached to the trailer for the grounding and power supply of the lights. … Rear Lights. The brown wire is attached on one side to the rear lights and market lights. Strip both ends and fix them with a butt connector at both ends. Marker Lights. You need butt connectors to connect one end of the marker lights to the other ends. …
Q: How do you wire a trailer?
A: Connect the white wire to the trailer frame using a self-tapping screw. Splice all wires to the same color wire on the 5-pin connector. Tape all connections. Wire color codes may not be the same on the truck as on the trailer. If you’re adding a 5-pin truck side connector, use a test light to determine the circuit colors.
Q: How to hook up trailer light plug?
A: Prepare for Trailer Wiring Installation. Start by making sure you have everything you need to wire your trailer lights. … Connect Ground to Trailer Frame. Attach the white ground wire directly to a clean,bare section of the trailer frame using a self-tapping screw and ring terminal. Run Wires Along Trailer Frame. Run the rest of the wires along the trailer frame to the taillights. … Make Trailer Connections. Once the wires have been run to their respective appropriate locations,it’s time to make the connections to your trailer’s lights.
Q: How to wire trailer brakes?
A: Install the 6 conductor cable in the trailer frame. Connect the green wire to the right turn/stop lamp. Connect the yellow wire to the left turn/stop lamp. Connect the blue wire to the trailer brakes. Connect the brown wire to the tail lights on both sides of the trailer and to the side marker lights.