10 Best Kits Wiring Harness
for September 2021

Recommendations are independently chosen by MOOZ’s editors. Purchases you make through our links may earn us a commission.

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9.7
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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

ONLINE LED STORE 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

by ONLINE LED STORE
What We like

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.

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Product Features

  • 18 AWG COLOR CODED WIRES- Color coded 18 AWG wires clearly identify each wire's function; makes installation safe and straight-forward.
  • WISHBONE STYLE WIRING SETUP- Wishbone design makes it easier to wire to the taillights; simplifies installation process.
  • 25' MALE & 4' FEMALE INCLUDED- Our 4-way trailer wiring harness includes both the male and female sides for added value.

Wishbone style wiring setup- wishbone design makes it easier to wire to the taillights; simplifies installation process. 25' male & 4' female included- our 4-way trailer wiring harness includes both the male and female sides for added value. 18 awg color coded wires- color coded 18 awg wires clearly identify each wire's function; makes installation safe and straight-forward.

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9.6
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Nilight 10014W LED Light Bar Wiring Harness Kit 14AWG Heavy Duty 12V 5Pin Rocker Laser On Off Waterproof Switch Power Relay Blade Fuse-1 Lead,2 Years Warranty

Nilight 10014W LED Light Bar Wiring Harness Kit 14AWG Heavy Duty 12V 5Pin Rocker Laser On Off Waterproof Switch Power Relay Blade Fuse-1 Lead

2 Years Warranty

by Nilight
What We like

Premium Quality: excellent electrical conductivity, outstanding bending performance, high temperature and melting resistant, longer lifespan

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Product Features

  • Package include: 1 x wiring harness kit, 1 x 5 pin LED rocker switch, 1 x instruction
  • Protective blade fuse: inline blade fuse prevents from overcurrent or short circuit. Three extra fuses, more scientific and reasonable
  • Fit Type: Universal Fit
  • Durable switch: high quality 5 pin on-off rocker switch with laser-etched pattern, simple to install and convenient to use
  • Reliable power relay: made of Advanced materials and well conductive pins to ensure safety protection and conversion circuit

Durable switch: high quality 5 pin on-off rocker switch with laser-etched pattern, simple to install and convenient to use Reliable power relay: made of advanced materials and well conductive pins to ensure safety protection and conversion circuit Package include: 1 x wiring harness kit, 1 x 5 pin led rocker switch, 1 x instruction Fit type: universal fit Protective blade fuse: inline blade fuse prevents from overcurrent or short circuit. three extra fuses, more scientific and reasonable

3
9.5
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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

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

by SUZCO
What We like

4-WAY CONNECTORS & FITMENTYou 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.

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Product Features

  • 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. 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 INSTRUCTIONThere 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.
  • 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. 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.
  • EXTENSION INCLUDINGThis 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 aluminum trailer based on the ground wire.

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. 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. Extension includingthis 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 aluminum trailer based on the ground wire. 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. 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 instructionthere 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.

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9.3
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Nilight - 10019W LED Light Bar Wiring Harness Kit 12AWG Heavy Duty 12V 5Pin Rocker Switch Laser On off Waterproof Switch Power Relay Blade Fuse-1 Lead,2 Years Warranty

Nilight

10019W LED Light Bar Wiring Harness Kit 12AWG Heavy Duty 12V 5Pin Rocker Switch Laser On off Waterproof Switch Power Relay Blade Fuse-1 Lead,2 Years Warranty

by Nilight
What We like

Premium quality, excellent electrical conductivity outstanding bending performance, high temperature and melting resistant longer lifespan

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Product Features

  • Efficient protection, power relay for safety protection and conversion circuit blade fuse protected against overcurrent and short circuit
  • Universal fitment this wiring harness is compatible with all automobiles, boats and devices equipped with a 12V DC power source
  • Great switch built-in two premium LEDs emit soft light to illuminate the patterns easy for you to find the switch in the dark
  • Package includes 1 x wiring harness kit 1 x 5 pin LED rocker switch 1 x instructions

Efficient protection, power relay for safety protection and conversion circuit blade fuse protected against overcurrent and short circuit Package includes 1 x wiring harness kit 1 x 5 pin led rocker switch 1 x instructions Universal fitment this wiring harness is compatible with all automobiles, boats and devices equipped with a 12v dc power source Great switch built-in two premium leds emit soft light to illuminate the patterns easy for you to find the switch in the dark

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8.9
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H4 LED Headlight Wiring Harness [Negative Switched Conversion] [Fused] H4 Head Light Relay Harness Kit for 9003 H6054 H5054 H6054LL 6014 6052 6053 Subaru Toyota Head Lights

ONLINE LED STORE H4 LED Headlight Wiring Harness [Negative Switched Conversion] [Fused] H4 Head Light Relay Harness Kit for 9003 H6054 H5054 H6054LL 6014 6052 6053 Subaru Toyota Head Lights

by ONLINE LED STORE
What We like

NO LOW-QUALITY PARTS HERE - Designed with two durable relays, high-temperature ceramic headlight sockets, and heat-resistant polycarbonate wire loom. This harness is built to last.

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Product Features

  • YOUR VEHICLE NEEDS THIS - Swapping out old headlights ( H6054 H5054 H6054LL 6014 6052 6053) for LEDs on negative switched vehicles like Toyota, Subaru, Mitsubishi, or Suzuki, is not a simple job. But with our plug-n-play conversion harness it can be!
  • PRESERVE YOUR STOCK COMPONENTS - The beauty of this conversion harness is that you don't need to cut into your stock wiring harness. This dramatically reduces the install time, and if you need to, even makes the process completely reversible.
  • CONVERSION MADE EASY - Save time, money, and headache by utilizing this wiring harness to convert a ground switched headlight system (2 toggled grounds + 1 constant hot) to a positive switched headlight system (2 toggled hots + 1 constant ground).
  • THE WAY IT SHOULD BE - We set out to build a harness that would install with as little effort as possible. The result? A conversion harness that takes only minutes to install and works every time.

Your vehicle needs this - swapping out old headlights ( h6054 h5054 h6054ll 6014 6052 6053) for leds on negative switched vehicles like toyota, subaru, mitsubishi, or suzuki, is not a simple job. but with our plug-n-play conversion harness it can be! Conversion made easy - save time, money, and headache by utilizing this wiring harness to convert a ground switched headlight system (2 toggled grounds + 1 constant hot) to a positive switched headlight system (2 toggled hots + 1 constant ground). The way it should be - we set out to build a harness that would install with as little effort as possible. the result? a conversion harness that takes only minutes to install and works every time. Preserve your stock components - the beauty of this conversion harness is that you don't need to cut into your stock wiring harness. this dramatically reduces the install time, and if you need to, even makes the process completely reversible.

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8.8
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Nirider Wiring Harness 2 Lead, 12V 40A Rock Switch Relay Fuse Nylon Wiring Harness Kit for LED Light Bars Fog Lights Work Lights Driving Lights Offroad LED Pods Wire Kit for Truck UTV ATV Boat

Nirider Wiring Harness 2 Lead

12V 40A Rock Switch Relay Fuse Nylon Wiring Harness Kit for LED Light Bars Fog Lights Work Lights Driving Lights Offroad LED Pods Wire Kit for Truck UTV ATV Boat

by Nirider
What We like

SAFETY & DURABILITY - Heat-resistant, no need to worry about over-current or over-temperature conditions. Waterproof design for durability, relay uses 4 poles, fuse with rubber cap and is sealed for added moisture protection. The switch has been tested repeatedly to ensure durability.

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Product Features

  • NYLON MATERIALS - The high-tensile nylon jacket offers superior strength and flexibility, it can handle daily stress, ensuring long-lasting performance. Nylon jackets enhance durability and heat dissipation while adding a professional look.
  • APPLICATIONS - Compatible with all vehicles, boats, and devices equipped with a 12V power source. Easy to set up, fit for most of LED lights in the market. Illuminated red LED indicator for visibility and ease of use. 16.4ft total cable length, there's enough wire to reach all the way to the end of your vehicles.
  • OVERVIEW - Nirider Nylon Wiring Harness Kit is designed to wire and operate up to two 150W auxiliarylights (Max 300W total). Harness complete with 40A relay, blue indicator light rocker switch, fuse and accessories.

Applications - compatible with all vehicles, boats, and devices equipped with a 12v power source. easy to set up, fit for most of led lights in the market. illuminated red led indicator for visibility and ease of use. 16.4ft total cable length, there's enough wire to reach all the way to the end of your vehicles. Overview - Nirider nylon wiring harness kit is designed to wire and operate up to two 150w auxiliarylights (max 300w total). harness complete with 40a relay, blue indicator light rocker switch, fuse and accessories. Nylon materials - the high-tensile nylon jacket offers superior strength and flexibility, it can handle daily stress, ensuring long-lasting performance. nylon jackets enhance durability and heat dissipation while adding a professional look.

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7.4
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Nilight - 10036W 14AWG 11.5 Feet DT Connector Wiring Harness Kit LED Light Bar 12V On Off Switch Power Relay Blade Fuse for Off Road Lights LED Work Light-2 Leads

Nilight

10036W 14AWG 11.5 Feet DT Connector Wiring Harness Kit LED Light Bar 12V On Off Switch Power Relay Blade Fuse for Off Road Lights LED Work Light-2 Leads

by Nilight
What We like

Simple connection equipped with DT connector no wiring between LED light bar and the harness kit simple and easy installation

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Product Features

  • Circuit protection power relay together with inline blade fuse to defense against overcurrent and short circuit ensuring safety
  • Package include 1 x 11.5 feet wiring harness kit
  • Universal fit this harness kit is compatible with all automobiles boats and devices that use a 12V power source
  • Two leads Available with 2 Sets of light output connectors for dual lighting fixtures Heavy duty harness with a wire gauge of 14 AWG this heavy-duty wiring harness can be used to connect a light bar within 300W

Circuit protection power relay together with inline blade fuse to defense against overcurrent and short circuit ensuring safety Universal fit this harness kit is compatible with all automobiles boats and devices that use a 12v power source Package include 1 x 11.5 feet wiring harness kit Two leads available with 2 sets of light output connectors for dual lighting fixtures heavy duty harness with a wire gauge of 14 awg this heavy-duty wiring harness can be used to connect a light bar within 300w

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7.4
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Wiring Harness 2 Lead, Nirider 12V 40A Rock Switch Relay Fuse Nylon Wiring Harness Kit for LED Light Bars Fog Lights Work Lights Driving Lights Offroad LED Pods Wire Kit for Truck UTV ATV Boat

Nirider Wiring Harness 2 Lead

Nirider 12V 40A Rock Switch Relay Fuse Nylon Wiring Harness Kit for LED Light Bars Fog Lights Work Lights Driving Lights Offroad LED Pods Wire Kit for Truck UTV ATV Boat

What We like

BOX COME WITH - 14.7ft 2 lead wiring harness, on/off rocker switch, plug-in style 40A relay, ATO style 30A fuse, male and female fully insulated connectors. Provide 12 MONTHS quality assurance. Quickly responded within 24 hours and good after-sales service.

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Product Features

  • OVERVIEW - Nirider Nylon Wiring Harness Kit is designed to wire and operate up to two 200W auxiliarylights (Max 400W total). Harness complete with 40A relay, red indicator light rocker switch, fuses and mounting hardware.
  • SAFETY & DURABILITY - Heat-resistant, no need to worry about over-current or over-temperature conditions. Waterproof design for durability, relay uses 4 poles, fuse with rubber cap and is sealed for added moisture protection. The switch has been tested repeatedly to ensure durability.
  • APPLICATIONS - Compatible with all vehicles, boats, and devices equipped with a 12V power source. Easy to setup, fit for most of LED lights in the market. Illuminated red LED indicator for visibility and ease of use. 14.7ft total cable length, there's enough wire to reach all the way to the end of your vehicles.
  • NYLON MATERIALS - The high-tensile nylon jacket offers superior strength and flexibility, it can handle daily stress, ensuring long-lasting performance. Nylon jackets enhance durability and heat dissipation while adding a factory look.

Applications - compatible with all vehicles, boats, and devices equipped with a 12v power source. easy to setup, fit for most of led lights in the market. illuminated red led indicator for visibility and ease of use. 14.7ft total cable length, there's enough wire to reach all the way to the end of your vehicles. Safety & durability - heat-resistant, no need to worry about over-current or over-temperature conditions. waterproof design for durability, relay uses 4 poles, fuse with rubber cap and is sealed for added moisture protection. the switch has been tested repeatedly to ensure durability. Overview - nirider nylon wiring harness kit is designed to wire and operate up to two 200w auxiliarylights (max 400w total). harness complete with 40a relay, red indicator light rocker switch, fuses and mounting hardware. Nylon materials - the high-tensile nylon jacket offers superior strength and flexibility, it can handle daily stress, ensuring long-lasting performance. nylon jackets enhance durability and heat dissipation while adding a factory look.

9
7.4
SCORE
Complete Wiring Harness kit With Electrics Stator Coil CDI Wiring Harness Solenoid Relay Spark Plug For ATV Quad 4 Four Wheelers 150CC 200CC 250CC Go Kart Dirt Pit Bikes by KAKO

Complete Wiring Harness kit With Electrics Stator Coil CDI Wiring Harness Solenoid Relay Spark Plug For ATV Quad 4 Four Wheelers 150CC 200CC 250CC Go Kart Dirt Pit Bikes by KAKO

by OEN
What We like

Please check the pictures carefully before buying, especially the pictures of magneto stator.Please check the wiring diagram first before installation,professional installation is highly recommended and false assembly may cause fire on the harness.

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Product Features

  • Fits for most of Chinese made 150CC 200CC 250CC ATV / QUAD and Dirt Bike Suitable for brand of engines: Lifan, Loncin, Ducar, Shineray, Zongshen, YX and others.
  • Brand New and High quality complete wiring harness electrics wire loom Kit,copper thickening Wiring Harness, More durable and safe.
  • DO NOT FIT: 1. GY6 engine motorbikes and other Mini ATV / QUAD 49cc 50cc 80cc 90cc 100cc 110cc 125cc with different stator or CDI.So please compare your old stator, CDI with the ones in the listed pictures, just to be sure that they are the same before order.

Do not fit: 1. gy6 engine motorbikes and other mini atv / quad 49cc 50cc 80cc 90cc 100cc 110cc 125cc with different stator or cdi.so please compare your old stator, cdi with the ones in the listed pictures, just to be sure that they are the same before order. Brand new and high quality complete wiring harness electrics wire loom kit,copper thickening wiring harness, more durable and safe. Fits for most of chinese made 150cc 200cc 250cc atv / quad and dirt bike suitable for brand of engines: lifan, loncin, ducar, shineray, zongshen, yx and others.

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7.2
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MICTUNING HD+ 12 Gauge LED Light Bar Wiring Harness Kit with 60Amp Relay, 3 Free Fuse, On-off Waterproof Switch Red(2 Lead)

MICTUNING HD+ 12 Gauge LED Light Bar Wiring Harness Kit with 60Amp Relay

3 Free Fuse, On-off Waterproof Switch Red(2 Lead)

by MICTUNING
What We like

Waterproof On-off Switch - equipped with premium SPST switch, sealed with a rubber ring that works against dust, moisture and water jets, simple touch on and shines charming red, Easy control your led light bar on/off!

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Product Features

  • Early Burnout Defense - the inline water-resistant Fuse and 60amp Relay efficiently protect the circuit against voltage spikes and burnouts, also come with 3 pieces of different amperes fuses, great for various LED light bar/work lights connection
  • Details Make Perfect - Pre-wired design of all spade connectors, convenient for Quick & Easy Installation, Plug-N-Play! The 10ft long wire is flexible enough for mounting anywhere you wanted, wrapped by a thermoplastic PVC jacket that insulates up to 105??, better protects against moisture and heat
  • What You'll Get - 1x HD+ wiring harness with On/Off Waterproof Switch, 1x User Manual, 3x fuses and 4x spade connectors. Caution: Professional installation of this harness kit is highly recommended
  • MICTUNING HD+ Wiring Harness Kit with 2-Leads - Ultra Heavy Duty 12-Gauge wires, suitable for offroad light bar, HID work lights, Spot lights, Fog lights and other auxiliary lamps, Your Expensive High-power LED Lights Deserved for Superior Quality Harness!

Early burnout defense - the inline water-resistant fuse and 60amp relay efficiently protect the circuit against voltage spikes and burnouts, also come with 3 pieces of different amperes fuses, great for various led light bar/work lights connection MICTUNING hd+ wiring harness kit with 2-leads - ultra heavy duty 12-gauge wires, suitable for offroad light bar, hid work lights, spot lights, fog lights and other auxiliary lamps, your expensive high-power led lights deserved for superior quality harness! What you'll get - 1x hd+ wiring harness with on/off waterproof switch, 1x user manual, 3x fuses and 4x spade connectors. caution: professional installation of this harness kit is highly recommended Details make perfect - pre-wired design of all spade connectors, convenient for quick & easy installation, plug-n-play! the 10ft long wire is flexible enough for mounting anywhere you wanted, wrapped by a thermoplastic pvc jacket that insulates up to 105??, better protects against moisture and heat

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