The Best Boat Trailer Wiring Harness – Top 10 Picks & Reviews 2022

Are you looking for the Best Boat Trailer Wiring Harness? Too many options to choose from? If so, you’re in the right place. You’ll find all you want to know about buying the Boat Trailer Wiring Harness.

If you’re faced with many options, it’s difficult to study thousands of reviews. This tips alleviate your stress, so you can make a hassle-free purchase decision.

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Comparison Chart for Top Boat Trailer Wiring Harness

SL Preview Product Score Action
1 MICTUNING Heavy Duty 7 Way Plug Inline Trailer Cord with 7 Gang Junction Box – 8 Feet, Weatherproof 9.72 Check Price Now
2 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 9.52 Check Price Now
3 LIMICAR Trailer Wiring Harness Kit, 25ft Trailer Wire, Trailer Wiring Harness with 4 Flat Extension Connector, 4 Pin Flat Wishbond Trailer Wiring for Utility Boat Trailer Light Kit 9.6 Check Price Now
4 LINKITOM 4-Way Trailer Wiring Harness Kits, 25-Foot 18 AWG Color Corrosion Resistant Coded Wires with 4 Pin Flat Plug, for Utility Boat Trailer Lights 9.58 Check Price Now
5 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 9.8 Check Price Now
6 Nilight – 10039W 4 Pin Flat Trailer Wiring Harness Kit 18AWG 25Feet Male 4Feet Female Wishbone-Style Wiring Harness Extension kit for Utility Boat Trailer Lights 9.36 Check Price Now
7 SUZCO 36 Ft 4 Wire 4-Flat Trailer Light Wiring Harness Extension Kit, Custom-Made 28′ Male & 8′ Female with 4′ White Ground Wire, 4-Way Plug 4 Pin Male & Female Extension & Wishbone-Style & SAE J1128 9.52 Check Price Now
8 WOFTD 4-Way Trailer Wiring Harness with 9 ft Wires 4-Pin Trailer Wiring Jacketed Cable 4 Flat Trailer Wire Extension Connector – 9 ft 9.84 Check Price Now
9 Miady 25ft Trailer Wiring Harness with 4 Flat Connector, 18 AWG Color Coded Wires Trailer Light Wiring Harness Extension with 4ft White Ground Wire 9.72 Check Price Now
10 Hopkins 48265 30′ 4 Wire Flat Trailer Side Y-Harness Connector 9.36 Check Price Now

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Our Recommendation on the 10 Best Boat Trailer Wiring Harness

1. MICTUNING Heavy Duty 7 Way Plug Inline Trailer Cord with 7 Gang Junction Box – 8 Feet, Weatherproof

Features:

  • BEST SEALING PERFORMANCE – 4 open & 4 close rubber fitted grommets for option based on your wiring needs, making the whole junction box waterproof, dustproof and corrosion resistant. WHAT YOU’LL GET:2 Year MICTUNING WARRANTY and lifetime best customer service, 1 x 7-Way Trailer Plug with Junction Box, 4x Open Grommets, 4x Close Grommets.
  • EXCELLENT CONSTRUCTION – adopted flameproof ABS junction box and good conductivity copper with solid cord, stronger and rugged, perfect for RVs, trailers, campers, caravans, food vans and other towed vehicles.
  • TIDY 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.Cautions: Pls read the plug diagram carefully and refer to the diagram to install this 7 way plug.
  • FLEXIBLE CONNECTION – 8FT long cord with soft and durable PVC housing that offers you plenty of flexibility to wire it from the front to the rear of your car.NOT LIKE OTHERS, ONLY 4FT OR 6FT.
  • CONVENIENT TRAILER WIRING – sturdy junction box with color marked 7-poles that can be easily identified, gives you more convenience for wiring left/right turn light, brake signal lamp, reverse light, tail light, etc.

Additional Info:

Color Black
Height 1
Width 2
Length 80
Weight 2.97

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2. 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

Features:

  • 【ITEM TYPE】This 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. 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. This trailer wire harness kit is completely sealed for a long corrosion-resistant installation.
  • 【4 WIRING INSTRUCTION】There are instructions for wiring the running light and license plate lights included. The different color wires are clearly identified as each wire’s function, so you can make the installation safe and straight-forward.
  • 【EXTENSION INCLUDING】This 25foot 4 wire boat trailer wiring extension can conform to the SAE J1128 specification. Extends wiring system provides more flexibility. It can protect tow vehicle electronics from wiring shorts. Includes a 4-feet trunk connector, splices, and clips. This trailer wire harness kit also can work on an COPPER trailer based on the ground wire.
  • 【ENOUGH LENGHT GROUND WIRE】This 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. The white grounding wire is so enough long to wiring. The trailer side ground wire is about 2ft. Trailer wiring harness features a ground wire. The white ground wire is made of 18-gauge, which is corrosion resistant terminal.
  • 【4-WAY CONNECTORS & FITMENT】You can install the trailer wire so quickly and easily through the 4-way connectors. 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. Most standard light duty trailers will use a 4-pole flat connector. Not compatible with motorcycle trailer wiring, and you could confirm the fitment to be not the wrong item before ordering.

Additional Info:

Weight 0.02

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3. LIMICAR Trailer Wiring Harness Kit, 25ft Trailer Wire, Trailer Wiring Harness with 4 Flat Extension Connector, 4 Pin Flat Wishbond Trailer Wiring for Utility Boat Trailer Light Kit

Features:

  • 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.
  • 25FT Male & 4-Flat Female Trailer Wiring Harness Extension Kit: Fits Trailers under & over 80″ wide. Wire length (25′ & 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.
  • 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.
  • 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.

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4. LINKITOM 4-Way Trailer Wiring Harness Kits, 25-Foot 18 AWG Color Corrosion Resistant Coded Wires with 4 Pin Flat Plug, for Utility Boat Trailer Lights

Features:

  • Complying with SAE J1128 Standards
  • 25ft Wire Harness: 21.65ft length male wire harness and 3.93ft female wire harness
  • 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.
  • 4-way 4-pin hitch trailer wiring harness with connectors

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5. 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

Features:

  • 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.
  • 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.
  • WISHBONE STYLE WIRING SETUP- Wishbone design makes it easier to wire to the taillights; simplifies installation process.

Additional Info:

Height 2.5
Width 3.5
Length 7.5
Weight 0.95

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6. Nilight – 10039W 4 Pin Flat Trailer Wiring Harness Kit 18AWG 25Feet Male 4Feet Female Wishbone-Style Wiring Harness Extension kit for Utility Boat Trailer Lights

Features:

  • Wire Length: Comes with 18AWG 25ft male and 4ft female connector wire, both with full ground wire for your use. Designed to split at the trailer tongue and run down each side of the trailer to supply power for trailer lights.
  • Color Coded Wires: Wires are color coded and bonded, white for ground, brown for running and license light, yellow for left stop turn and green for right stop. Easily to route into your trailer’s wiring system and connect with lights.
  • Built To Last: Employ quality pure copper wire with tin plating for the best current conductivity and anti-oxidation ability, and premium PVC coating for the best anti-corrosion and anti-aging ability. Withstand sea water, no brittleness, no break, durable to last.
  • Universal Application: Work perfectly on trailers under and over 80” wide such as marine boat trailer, cargo utility trailer to install trailer lights.
  • Standard 4 Way Flat Connector: Male plug with 5 wires, female plug with 4 wires. Plug and play, matches with any other standard 4 pin flat plugs.

Additional Info:

Color multi color

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7. SUZCO 36 Ft 4 Wire 4-Flat Trailer Light Wiring Harness Extension Kit, Custom-Made 28′ Male & 8′ Female with 4′ White Ground Wire, 4-Way Plug 4 Pin Male & Female Extension & Wishbone-Style & SAE J1128

Features:

  • 【4-WAY CONNECTORS & FITMENT】You can install the trailer wire so quickly and easily through the 4-way connectors. 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. Most standard light duty trailers will use a 4-pole flat connector. Not compatible with motorcycle trailer wiring, and you could confirm the fitment to be not the wrong item before ordering.
  • 【ENOUGH LENGHT GROUND WIRE】This trailer wire extension with a 4 way flat plug connector is designed to supply power for tail lights, turn and brake lights, as well as a ground connection. The white grounding wire is so enough long to wiring. The trailer side ground wire is about 2ft. Trailer wiring harness features a ground wire. The white ground wire is made of 18-gauge, which is corrosion-resistant terminal.
  • 【4 WIRING INSTRUCTION】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. There are instructions for wiring the running light and license plate lights included. The different color wires are clearly identified as each wire’s function, so you can make the installation safe and straight-forward.
  • 【36′ EXTENSION INCLUDING】This 36foot 4 wire boat trailer wiring extension can conform to the SAE J1128 specification. Extends wiring system provides more flexibility. It can protect tow vehicle electronics from wiring shorts. Includes a 4-feet trunk connector, splices, and clips. This trailer wire harness kit also can work on an aluminum trailer based on the ground wire.
  • 【ITEM TYPE】This is our SUZCO custom-made vehicle-specific 36FT male & female 4-flat marine trailer wiring harness with 4-way conductors and a 4′ white ground wire, it fits for longer trailers and for customers desiring to wire, made of 18-gauge 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.

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8. WOFTD 4-Way Trailer Wiring Harness with 9 ft Wires 4-Pin Trailer Wiring Jacketed Cable 4 Flat Trailer Wire Extension Connector – 9 ft

Features:

  • This 4-pin trailer wiring plug comes ready to splice into your existing trailer wiring It can be used to connect the taillights, brake lights and turn signals. 4 Way Flat Trailer Wire Harness Connector Socket for Trailer Truck Hitch Wiring.
  • Please feel free to contact us at first if there is any problem when you receive or use our products. We are always here to support you.
  • The WOFTD 4-way trailer Wiring Harness is made of Pure copper, Wire diameter 18AWG , The safe temperature is below 105 degrees Celsius and the safe voltage is below 300V. It is wrapped with insulating rubber that will never rust or corrode.
  • The 9-ft wire lead provides plenty of extra length for a flexible installation.(The Trailer Wiring Harness perfect adapt WOFTD Trailer Plug Adapter)
  • The trailer connector makes a great replacement 4-flat trailer wiring connector The 4-pin wiring design matches industry-standard 4-way flat sockets and can be used on a wide variety of trailers.

Additional Info:

Color 9 Ft

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

Features:

  • Wide Application: Ideal for marine boat trailer, horse trailer, motorcycle trailer, ATV trailer, and other cargo utility trailer hitches (tow/haul vehicle must have 4-way plug) . – We provide 24*7 friendly customer support and also back our products for 18 months. Please feel free to contact us.
  • 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. Simplify the installation process to save more time.
  • Long Enough: The Miady 25′ Trailer Wiring Harness 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.
  • 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.
  • 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.

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10. Hopkins 48265 30′ 4 Wire Flat Trailer Side Y-Harness Connector

Features:

  • Easy to use and install
  • Wishbone design allows 2 brown wires to be run to each taillight
  • 30 feet in length
  • Wiring kit for maintaining or re-wiring your trailer
  • Corrosion resistant terminals

Additional Info:

Color Regular
Height 3.1
Width 6
Length 5.9
Weight 0.3

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Best Boat Trailer Wiring Harness Buying Guide

It’s up to you to choose any Boat Trailer Wiring Harness. But , you might not want to buy something that isn’t suited to your needs. There are certain things you need to remember to find the perfect product.

Here are the points you shouldn’t overlook:

Need to meet the requirements:

First thing to look at is whether the Top Boat Trailer Wiring Harness matches your needs. If you’re seeking something that will perform certain tasks, you should look at the ones that were designed for the task. Also, you can choose the one you already have whether you can really meet the needs of your.

Money to spend:

It is your choice to decide how much you are willing to spend on this Boat Trailer Wiring Harness. It will be difficult whether you get the wrong product and it doesn’t fit into your budget. It is best to select one that will fit within your budget. In the event that the product is not satisfactory, you could readily change it.

Features:

The attributes will reveal what you can expect with this Boat Trailer Wiring Harness. Make sure you don’t choose a product which isn’t suited to your needs or that will disappoint you. Check that the Boat Trailer Wiring Harness can meet your needs to satisfy your needs.

Quality:

The quality must be in good condition for this Boat Trailer Wiring Harness regardless of whether it’s a new or used. Be sure to examine the material used in making this Boat Trailer Wiring Harness and find out if they’re durable. Also, it’s your decision if you want something that’s tough or not. You can select from alternatives available depending on your preferences.

Rare or available product:

Also, think about the availability of Boat Trailer Wiring Harness on the market. If the product is in stock in the market, then it’s easier to get it and then wait for it. However, if the product is scarce that is, then you’ll have to wait until another batch comes out before buying one.

Guarantee or Warranty:

After purchasing a brand-new Boat Trailer Wiring Harness It is important to make sure it is running smoothly and will not be easily damaged. So, look for what you’ll get from the warranty. In certain cases, it may be a fear of getting back your money if you discover something wrong in the product.

Customer Feedback:

Be sure to read the reviews of other customers on Boat Trailer Wiring Harness. You can get it from their official website, or if they have blog posts, you can subscribe to updates and look at what people are saying about them.

Customer Support:

When you purchase this Boat Trailer Wiring Harness the product, you’ll need the means to get in contact with them with any questions and other concerns regarding the product. Certain companies have a hotline for customer service which you can contact. It would be best whether the company offers an online helpdesk to which it is possible to send an inquiry.

Verdict

Let’s wrap it up to Boat Trailer Wiring Harness. We hope that this buying tutorial helps make your life easier. Follow it for the best prices.

Additionally, you can conduct a self assessment to gain a better understanding of the Best Boat Trailer Wiring Harness. Let us know if our thorough tutorial was helpful or not! We hope you enjoy your purchase.

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