Automotive From Oyviny on Amazon

2 in 1 Design. This trailer light tester combines both 4 way circuit tester and 7 way trailer light tester, allows you to test both the 4 pin and the 7 blade connectors. Easy and quick to test trailer circuits on most trucks. ( Notes: 📢The trailer tester will upside down when testing for 2017 Newer Ford/GMC/Chevy model 📢7 pin trailer plug tester is unable to test LED lighting system 📢Doesn't work with vehicle has a lamp-out sensor, such as BMW, VW, Audi, Mercedes-Benz, Porsche etc.)

6 Light Functions. Versatile trailer wiring tester can be used to test 6 separate trailer light functions, quickly confirm the functionality of taillights, brake lights, reverse lights, turn signals, electric trailer brakes and 12V auxiliary power on your vehicle

4 Pin Extension. 4 way connector with fully jacketed cable 18 Guage wires, suitable for any types of trailers including marine boat trailer, horse trailer and other cargo utility trailers as long as it has a 4-way connection

Coiled Design. The coil design makes the wire does not drag but yet allows for the extra length needed for tight turns with a trailer, stretchable coiled wire keeps memory and effectively weatherproof

➤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!

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

➤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

GM Trailer Plug Adapter. This 7 Pin Trailer Connector plugs into the USCAR socket to provide a standard RV blade 7-pin trailer wiring connector for plugging in and towing a trailer

Twist-lock Design. This 7 way trailer plug adopts twist-lock design, which make it easy to mount the existing socket hole on trucks, fits into the twist-lock OEM bracket. No additional bracket and hardware required

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

Ram Brake Controller Harness: This ram brake control harness is compatible with 2015-2022 Ram 1500/2500/3500/4500/5500. Install your electric brake controller quickly and easily with this custom wiring adapter

Simple Plug&Play. This ram brake controller wiring adapter does not require cutting or splicing for installation, simply plug one end of the adapter into your brake controller and then plug the custom connector end into the built-in port beneath your vehicle's dash

Multi-Tow Trailer Adapter. 7 way to 12 volt power adapter not only converts 7 way flat blade to a 4-way or 5-way trailer connector, also adapts 7 way into 12 volt power cigarette lighter socket

12V Power Outlet. 12V power can be used to power air compressors, spot/flood lights, inverters, freezer, electric coolers in the back of your truck. Put 12v outlet where you need it, plug and play, much easier solution than running wires from battery to the truck bed

Brake Controller Harness for Dodge Ram: This custom brake control wiring adapter for dodge compatible with Dodge Ram 1995-2009 Pickup with factory trailer tow package. Install your electric brake controller quickly and easily with this custom wiring adapter

Simple Plug&Play. This ram brake controller adapter does not require cutting or splicing for installation, simply plug one end of the adapter into your brake controller and then plug the custom connector end into the built-in port beneath your vehicle's dash