Best Mecmo Trailer Wiring in 2026

Daisy
Last Updated: Feb 5, 2026

At a Glance: Our Top Picks for Mecmo Trailer Wiring

Oyviny 4 Way Flat Trailer Connector 5 Feet Jacketed Cable Heavy Duty Extension Cable Standard 4 Pin Trailer End Wiring Harness Adapter 18AWG Red Copper Color-Coded Wires for Trailer Hitch Wiring
#TOP1
Oyviny 4 Way Flat Trailer Connector 5 Feet
9.7
PM SCORE
Oyviny 4 Pin Flat Y-Splitter Plug Adapter with 17.5 inch Trailer Extension Harness Plug and Play Adapter for LED Tailgate Light Bar and Trailer Lights Insulating Housing with Dust Cover
#TOP2
Oyviny 4 Pin Flat Y-Splitter Plug Adapter With
9.7
PM SCORE
Oyviny 5 Way Flat Trailer Wiring Harness Plug with 22 inch Wire Lead Trailer End Durable 5 Pin Male Connector Trailer Light Wiring Harness Extension for Trailer RV Boat Color-Coded Waterproof
#TOP3
Oyviny 5 Way Flat Trailer Wiring Harness Plug
9.6
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Mecmo Trailer Wiring of 2026

Oyviny 4 Way Flat Trailer Connector 5 Feet Jacketed Cable Heavy Duty Extension Cable Standard 4 Pin Trailer End Wiring Harness Adapter 18Awg Red Copper Color-Coded Wires For Trailer Hitch Wiring

OYVINY
OV2121
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Oyviny 9.92

Features

This 4 pin trailer connector is designed to match industry-standard 4-way flat sockets, provides a male plug for your trailer and can be used to replace a worn out, broken wire on a wide variety of trailers.

The 4 way trailer cable and moulded end is thick the beefy, durable for a long service life. A heavy duty jacketed cable is going to protect the 18AWG red copper wire against the elements.

4-pin trailer wiring plug is well built and plugs into the tow vehicle easily and remains connected. 5ft wire is long enough to wire a trailer from the start, provides plenty of extra length for a flexible installation. With wider tabs on both side, this upgraded 4 pin trailer wiring offers better grip when plugging in and out.

Color coded wires ensure a simple installation, you can easily splice into existing trailer wiring to connect the taillights, brake lights and turn signals.

We offer 1 Year Warranty for this item, your satisfaction comes first! Please feel free to contact us if any question, we are always here to support you!

Oyviny 4 Pin Flat Y-Splitter Plug Adapter With 17.5 Inch Trailer Extension Harness Plug And Play Adapter For Led Tailgate Light Bar And Trailer Lights Insulating Housing With Dust Cover

OYVINY
XC-4FLAT-102
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Oyviny 9.92

Features

Perfect Y-Connector. 4 Way Y-Splitter harness contains 1 male and 2 female connectors that allows you to power 2 LED light bars at one time No complicated wiring or splicing

High Quality Trailer Splitter. Y-Splitter housing made of a premium insulated silicone, waterproof and anti-electric, can be safely wired, flexible and durable, ensure long service life

17.5" long 4-pin Y-splitter dual output plug adapter. The 2 female adapter comes with 2 waterproof rubber cover, which keeps the connection points dry, and protect the plug from dusts and corrosion

Plug&Play. Y-splitter Adapter is designed to fit for trailer LED lights, tailgate light bars and other use, fits all types of trailers, flexible and easy installation, helping to extend your original one

Reliable Service. 2-Way Y-Splitter Harness comes with 1 Year Warranty and 24 Hours Service, your satisfaction comes first, if any question we will 100% assist you!

Oyviny 5 Way Flat Trailer Wiring Harness Plug With 22 Inch Wire Lead Trailer End Durable 5 Pin Male Connector Trailer Light Wiring Harness Extension For Trailer Rv Boat Color-Coded Waterproof

OYVINY
CP0270-001
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Oyviny 9.92

Features

5 pin trailer connector with a 22 inch wire pigtail, 5-Way trailer harness connects to your tow vehicle to control trailer light functions, ideal for marine trailers with hydraulic or surge brakes

High quality 5 way trailer plug, resisting corrosion brass and tin-plated terminal provides good conductivity and rubber-molded connector makes it better waterproof and longer using life

Pre-Stripped 5 pin trailer wiring harness makes installation quick and easy; 5 way color-coded bonded wires respectively stand for tail lights, brake lights, turn signals, reverse lights and ground

Trailer 5 pin connector with split wire allows you to run wires from the connector directly to each taillight - no jumper wire off the main harness to one of your taillights is necessary with this style harness

5 wire trailer plug with ergonomic design, there are tabs on both sides of the plug, offers a better grip when plugging in or unplugging. Oyviny 5 flat trailer wiring harness comes with 1 Year Warranty, your satisfaction comes first, if any question we will 100% assist you!

Oyviny Multi-Tow Uscar 7 Pin To 7-Way Blade And 4-Way Flat Trailer Wiring Adapter For Ford, Gm, Dodge Vehicles, Factory Tow Package And Uscar 7 Way Socket Required

OYVINY
OV2128-001
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Oyviny 9.92

Features

➤Multi-Plug Design. This dual-output trailer adapter simply replaces the 7-Way USCAR connector that came with your vehicle, it features both 4 Pin and 7 Pin connector in case you have multiple trailers with different connectors, adding versatile towing options

➤USCAR Specific. This USCAR 7 pin trailer plug adapter is designed for specific vehicles with a factory tow package, Compatible with Ford, GM, Dodge vehicles with the factory 7-way USCAR socket. 📢Note:Please check the connector behind your vehicle before buying, thanks!

➤Plug and Play. USCAR to rv 7 way trailer adapter plugs into factory 7-way USCAR socket on your vehicle, no cutting and splicing, mounting bracket and hardware included. connectors can be used to connect the taillights, brake lights, turn signals, reverse lights, trailer brakes and auxiliary power

➤Dust Cover. Both 7 way rv connector and 4 way flat socket of this f150 trailer adapter comes with rubber dust covers, which keeps the connection points dry, and protect the plug from dusts and corrosion. We offer 1 Year Warranty for this T-Connector trailer wiring harness

➤Durable Construction. Oyviny gm trailer plug adapter made from durable ABS plastic to prevent rusting and enhance appearance; A heavy duty black wire loom keeps the wiring contained and protects the harness for long-lasting use

Oyviny 4 Way Flat Trailer Wiring Harness For Nissan Frontier 2005-2022/Nissan Xterra 2005-2015/Nissan Pathfinder 2005-2010/Suzuki Equator 2009-2012, Factory Tow Package Required

OYVINY
OV2235-001
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Oyviny 9.92

Features

➤Frontier Trailer Wiring Harness. This frontier tow harness compatible with 2005-2022 Nissan Frontier/2005-2010 Pathfinder/2005-2015 Xterra and 2009-2012 Suzuki Equator, perfect for replacing damaged OEM wiring harness

➤Standard 4 Way Plug. Custom xterra trailer wiring harness provides a 4-way flat trailer connector to power your trailer's signal lights. Note: This Xterra/Frontier trailer harness is a perfect replacement for vehicles already has tow package, it will give you running lights, brake lights and turn signals. If your vehicle doesn't have a tow package, you won't get running lights on trailer, you need to get the relays from the dealers so that running lights will work

➤Well Protected. The whole aftermarket pathfinder trailer wire harness is protected by black nylon wire loom to keep them bundled together and well protected, ensure long service life. 70 inches long wire offers plenty of flexibility for towing

➤Easy Installation. Simple Plug and Play design makes easy installation, frontier trailer harness requires No Cutting or Splicing! Directly plug the custom connector into the existing factory harness on your Nissan vehicle

➤Durable Construction. Corrosion-resistant 4 pin connector of this frontier 4 way trailer wiring is easy to grip, equipped with a rubber dust cover to protect the socket from water and dust when not in use, premium tin-plated copper terminals makes great conductivity

Oyviny Replacement For 55384 Uscar 7-Pin To 4-Pin Trailer Wiring Harness For Installing Tailgate Light Bar, Uscar To 4 Pin Adapter Retain Use Of 7 Pin Bumper Socket 41 Inches 16Awg Wire Plug And Play

OYVINY
OV2126-001
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Oyviny 9.92

Features

Multi-Function Wiring Harness. USCAR 4 Way Trailer Wiring Harness plugs into existing USCAR connector on your vehicle, provides a 4-way flat socket while retaining use of the existing OEM 7-way connector.

Used for Tailgate Light Bar. USCAR 7 way to 4 way trailer wiring great for providing a 4-prong trailer connector to install a light bar under the tailgate. Plug and play, no need to cut wires.

Standard 4 Way Connector. USCAR 7 pin tailgate light wiring harness ties your trailer's electrical system into the vehicle's Brake Light, Turn Signal Light and Taillights. 4-pin trailer wiring is widely used in most trailers, adding versatile towing options.

Wide Application. This USCAR trailer T harness is designed to be a custom wiring option for a variety of vehicles, compatible with many vehicles with factory USCAR 7 way trailer tow wiring, for GMC, Dodge Ram, Ford, Toyota Tacoma/Tundra, Jeep etc.

Durable Construction. 16AWG pure copper wire makes reliable connection, 41 inches length USCRA wiring harness was well protected by a black slit loom. All 7 way USCAR plugs and 4 way connector are made from durable black plastic for long-lasting use.

#TOP7

Oyviny 5 Way Flat Trailer Wire Extension 48 Inch, Vehicle-Side And Trailer-Side 5-Pin Flat Wiring Harness 18 Guage Male And Female Trailer Wire Connector

OYVINY
OV2132-001
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Oyviny 9.92

Features

5 Pin Flat Extension. 5-way flat wiring harness extension with a male and female end, can be cut to splice into existing wiring or directly serve as a useful extension harness. Ideal for marine trailers with hydraulic or surge brakes

Universal 5 Way Socket. 5 pin trailer connector extension is universal for all trailers and all tow or haul vehicles with a 5-way plug. Perfect to replace your old worn out harness, provides electricity to the back lights of a trailer

Color-Coded Wires. 5-prong 18 guage color-coded wiring extension comes ready to install. 5 way bonded wires respectively stand for tail lights, brake lights, turn signals, reverse lights and ground

Durable Construction. Rubber-molded 5 way connector makes it better waterproof and longer using life, high quality and safety, resisting corrosion brass and tin-plated terminal provides great conductivity

Easy Installation. Plug and Play installation, you don't need to cut the original harness to add wires. 48-inch 5 way wire loop provides plenty of extra length for an easy and flexible installation

Top 10 trailer wiring Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Oyviny 7

Top 10 trailer wiring Brands Pie Chart


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