Not all 7 pin trailer connectors are wired the same. Some have different functions for the different pins. Consult your vehicle owner's manual or a local trailer shop for the proper wiring of your particular vehicle.
If you have a basic understanding of tools and how to follow instructions, then installing your own trailer hitch shouldn't be too difficult. However, if you're not confident in your abilities, then it's probably best to leave it to a professional. The most important thing is to make sure that the hitch is installed correctly so that it can properly support the weight of the trailer.
If you have a 7 pin connector on your vehicle, you will not need a brake controller. The 7 pin connector provides power to the brakes and also gives you the ability to control the trailer brakes from the vehicle.
If you're looking to tow a trailer, you might be wondering if you need a wiring harness. The answer is maybe. If your vehicle didn't come with a factory-installed hitch and wiring, then you'll definitely need a wiring harness. But even if your vehicle did come with a hitch and wiring, you might still need a wiring harness depending on the age and condition of your vehicle's current hitch and wiring. So it's always best to check with your local trailer hitch dealer or automotive parts store to be sure.
4.8/5
EASY ATTACHMENT WITH INCLUDED SPRING CLIP
MEETS OR EXCEEDS ALL DOT REQUIREMENTS
THE COILED CABLE STAYS SAFELY OFF THE GROUND while you’re towing, preventing wear and tear to the cable and providing years of lasting use
COATED CABLE WIRE ELIMINATES FRAY and protects your fingers from loose, sharp wire
PROVIDES A SAFER AND MORE EFFECTIVE CONNECTION to your trailer, because it doesn’t rust, fray or become damaged while towing which keeps you and your trailer safer when towing
$234
Compared to conventional wire breakaway cables, this cable is far more aesthetically pleasing, and it never needs to worry about dragging on the ground. The 6 foot version will work just as well and just cost a few cents more than the 4 foot version while giving you far more flexibility and reach. Don't waste your time with the 4 foot version because it is coiled.The "cable" appears to be composed of plastic and has no wire or other internal components, which worries me because it could eventually become brittle. However, since wire cables always end up fraying as they age, it could be a good idea to occasionally replace them. With a split ring that is comparatively easy to attach to or remove from the breakaway pin, this cable is very simple to replace. Most wire cables I've encountered need to be cut to be removed, or the cable and pin need to be replaced at the same time.
4.7/5
7 Way RV blade to 4 Wire flat
Includes function testing LEDs
The new patent-pending LED series incorporates built-in trouble-shooting
If the trailer lights are not functioning correctly, you can isolate the problem by simply looking at the adapter
Take the guesswork and frustration out of vehicle to trailer wiring
$234
I have a factory 7 pin outlet on my 1998 Ford F150. For my 4 pin trailer lights, I connected a 7 pin male plug. For a few years, everything ran smoothly. I recently plugged the trailer in, however there were NO LIGHTS! I wasn't sure if the problem lay with the wiring in my truck or the trailer. I made the decision to get brand-new PREWIRED lights from Amazon that had magnetic bases so that I could quickly take them off when I wasn't towing. As a result, the light was removed from the trailer's sides, where it could easily be bumped into and damaged. These lights have thick wiring that should never cause a problem, and they allow me to quickly attach to any other trailer if necessary. The 7 pin to 4 pin converter made it clear to me right away that the wiring in the truck was flawless. It had in fact been bad wiring on the trailer. Before mounting the new trailer lights, I tested them. In towingland, everything is good. This converter, which also comes with a vehicle tester, is undoubtedly preferable to having to wire a 4 pin device to a 7 pin outlet.
4.7/5
Impact and corrosion resistant, and pre-greased terminals for additional protection
Includes mounting bracket, hardware, and step-by-step instructions for easy installation
Multi-Tow feature provides multiple 7 RV blade and 4 wire flat towing options from one connector
Plug-In Simple Wiring Kit installation means no cutting or splicing, saving time and hassle
Utilizes OEM connectors create an exact fit and enhanced weatherproofing
$234
See images to make sense of everything!I recently bought a brand-new Nissan Titan (2018 Model), however neither a hitch nor a wiring kit were included. I noticed the bracket that comes with this wiring kit wouldn't easily mount to the underside of the bumper after I bought it, so I got under the truck to locate a different position to mount it. To my astonishment, I discovered that the Titan's factory wire mount is just like this one, albeit being wrapped in plastic. After I made a few small holes and carved a circle around the metal mounting bracket, this item essentially slid into place. The clips needed a minor adjustment, but it was simple enough. If you have a Titan, utilize the factory bracket rather than the one that comes with it because it will appear much more polished. At a small fraction of what the tow package would have cost, it is essentially the factory wiring kit now. I got it for a lot less money than it would have from the dealer—$160 for a Class III hitch and $30 for this wiring kit!
4.7/5
EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness plugs into existing factory wiring on your vehicle and equips it with a standard 4-pin trailer wiring connector for plugging in and towing a trailer.
VEHICLE-SPECIFIC. This vehicle-trailer wiring harness is designed for select models of the Subaru Forester, Outback, Outback Sport and XV Crosstrek, ensuring the easiest possible installation and the most reliable wiring connection.
STANDARD CONNECTOR. The 4-flat trailer wiring can be used to connect trailer taillights, brake lights and turn signals. 4-way trailer wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle.
RELIABLE POWER. This 4-way trailer wiring harness is built with surface mount technology. This type of circuitry generates less heat, optimal light intensity and durable performance.
DUST COVER. To promote long-lasting use and weather resistance, this 4-pin trailer wiring harness comes with a rubber dust cover. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements and internal corrosion.
$234
This morning's installation took roughly 30 minutes. It would have taken less time, but I watched the wrong YouTube video and didn't understand how to remove one inner panel. After finding the appropriate footage, I finished it quickly. Installation is simple, while following printed instructions alone is unlikely to be helpful. View the Curt or eTrailer video for your vehicle's year or the one that is closest to it.It only requires a few simple tools, including a socket or wrench to remove the positive lead from your battery (the black one), a panel removal tool to prevent damage to the push pins holding the interior panels in place, and a drill or driver to drive the ground wire into the body metal. The packing includes everything else.Additionally, I suggest the Curt 58261 4-Way Flat LED Connector Tester for checking your work and future troubleshooting. more so if you don't have a trailer to test it out on. Just a few dollars more.Happy with the possibilities it offers, the ease of installation, and the harness.
4.6/5
EFFORTLESS TRAILER WIRING: The ABN Electrical Wire Connector Junction Box 1-Pack provides safe and secure trailer wiring install with markings to easily identify the correct connections
PACKAGE CONTENTS: Package includes (1) junction box with (7) wire studs + (5) rubber boot grommets + (2) screws + (2) built-in cable connector straps (no cord attached to box)
EFFICIENT DESIGN: Each of the 7 studs is 10-32 thread and comes with 1 nut per stud; Studs are mounted into the plastic base of the box; Box comes with different grommets so you can run your wiring through and weatherproof it; Cover seals well and comes with 2 fastening screws
BUILT TO LAST: Heavy-duty black plastic box with cover; 40°F (105°C) dry and 15°F (60°C) wet; 30 Mil AWG Copper, 2/10-1/12-4/14
EASY TO USE: Quickly identifiable markings allow for simple, secure install trailer/towing hook up; Blue – Electric Brake; Brown – R Stop & Turn; Green – Tail & USC; Red – L Stop & Turn; Yellow – Center AUX; Black – 12V Charge Line; White – Ground
$234
This box and several more parts were purchased by me to update the wiring on a horse trailer. First, the positive. The box included two built-in cable connectors, plenty of rubber boots, and seven studs for the wires, all of which were very helpful in holding down the 7 pin connector cable I used. The second is the bad. The seven 10-32 threaded studs came with just one nut per stud. I decided it would be best to use the factory nuts provided to tighten down and secure the studs because they are fixed into the plastic base of the box and had a little bit of wobbling. Therefore, I purchased seven 10-32 nuts and flat washers from the hardware store. For my wires, I also purchased ringed terminal connectors. Yellow for 12 AWG wires, Blue for 16 and 14 AWG wires. The ring terminals give off a neat, polished appearance and stop wires from touching one another and shorting out. So I attached the washer to the OEM nut before attaching the ring terminal connector and tightening the 10-32 nut. You might think the washers were excessive, but I wanted to give my wires the most contact surface possible. The two screws that hold the lid to the box are recessed just below the top of the box. I thus employed duct seal. It's a clay-like, grey compound that electricians use to seal around electrical service entrance components because it can withstand cold or hot conditions. In conclusion, I liked the package, but I feel like eight more nuts and washers might have been added for the price. Ring terminal connectors would have earned you a perfect score of six!
4.5/5
VERSATILE DESIGN. This 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.
DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of this 4-pin trailer wiring plug is made from durable black molded rubber that will never rust or corrode.
READY TO INSTALL. Equipped with blunt-cut, color-coded wires, this 4-prong trailer wiring plug comes ready to install. The 12-inch wire lead provides extra length for an easy installation.
EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this trailer plug. It features tabs on the top and bottom for a better grip when plugging into your vehicle or unplugging.
RELIABLE CONNECTION. 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.
$234
I simply purchased this pigtail in case the original trailer plug broke. The old plug on my utility trailer, which I purchased used, has seen better days. Nevertheless, the trailer connector plug from the trailer functioned when I placed the trailer light kit on my car and tested it. As a result, I'll save this pigtail as a backup for this trailer or another one in the future.
4.5/5
Multi-Tow provides multiple towing options from one connector, creating creating an ideal customized wiring system
Flexible wire increases installation options
Includes mounting bracket and hardware so it can be mounted to vehicle bumper
Take the guesswork and frustration out of vehicle to trailer wiring
Pre-wired for quicker and easier installation
$234
Since I wanted to perform four things, my installation was a little different from the typical hookup. Tow a small trailer without brakes, be able to tow a trailer with brakes by using a brake controller, power a macerator pump to transport waste water, and power a power lift to aid in loading and unloading the minivan's back. Since the hookup remained the same, I only needed a slightly thicker wire to run to the back of the minivan. I mounted the plugs on the bumper rather than the hitch, which was a mistake because doing so caused some damage to the angle bracket that it would not have sustained had it been attached to the hitch. That was the only thing I did differently from what was recommended in the box.The adapter kit did a great job of meeting my needs 1) and 2). Instead of using the vehicle's frame as a ground, I ran a separate black wire, and as I previously mentioned, because of my weight requirements, I needed thicker wire. For my "blue" cable for the electric brake support, I used the black wire from the adaptor. Unfortunately, my macerator pump uses the center wire—the purple one with the backup lights—as an extra power source. The black wire (aux), which seems to be more appropriate, will be switched if I have time, but for the time being, things are as they are.The power lift is the largest user of power. It requires 30 amps of 12 volt direct current, thus the wires were run to it first before being T'd to the other operations (one for the power brakes (2) and one for the macerater) (3). The power is shared between them, as well as the lighting for the trailers (1 and 2), as the lift does not operate when traveling and would not be used while the macerater is running. The precondition for installing this product is the basic 4-wire compact trailer package, which I had already installed.It all functions flawlessly.
4.5/5
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.
25' MALE & 4' FEMALE INCLUDED- Our 4-way trailer wiring harness includes both the male and female sides for added value.
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.
WISHBONE STYLE WIRING SETUP- Wishbone design makes it easier to wire to the taillights; simplifies installation process.
18 AWG COLOR CODED WIRES- Color coded 18 AWG wires clearly identify each wire's function; makes installation safe and straight-forward.
$234
![ONLINE LED STORE 4-Way Flat Wishbone-Style Trailer Wiring Harness Kit [25' Male & 4' Female] [18 AWG Color Coded Wires] [SAE J1128 Rated] with 4 Flat Connector for Under or Over 80](/i/81VCIHiobyL/450/best-towing-hitch-wiring.jpg)
![ONLINE LED STORE 4-Way Flat Wishbone-Style Trailer Wiring Harness Kit [25' Male & 4' Female] [18 AWG Color Coded Wires] [SAE J1128 Rated] with 4 Flat Connector for Under or Over 80](/i/91ZsMnOowkL/450/best-towing-hitch-wiring.jpg)
![ONLINE LED STORE 4-Way Flat Wishbone-Style Trailer Wiring Harness Kit [25' Male & 4' Female] [18 AWG Color Coded Wires] [SAE J1128 Rated] with 4 Flat Connector for Under or Over 80](/i/81227ue2rTL/450/best-towing-hitch-wiring.jpg)
![ONLINE LED STORE 4-Way Flat Wishbone-Style Trailer Wiring Harness Kit [25' Male & 4' Female] [18 AWG Color Coded Wires] [SAE J1128 Rated] with 4 Flat Connector for Under or Over 80](/i/81oAx1Z4g8L/450/best-towing-hitch-wiring.jpg)
![ONLINE LED STORE 4-Way Flat Wishbone-Style Trailer Wiring Harness Kit [25' Male & 4' Female] [18 AWG Color Coded Wires] [SAE J1128 Rated] with 4 Flat Connector for Under or Over 80](/i/91M1G-fFjSL/450/best-towing-hitch-wiring.jpg)
![ONLINE LED STORE 4-Way Flat Wishbone-Style Trailer Wiring Harness Kit [25' Male & 4' Female] [18 AWG Color Coded Wires] [SAE J1128 Rated] with 4 Flat Connector for Under or Over 80](/i/81dnnXNY30L/450/best-towing-hitch-wiring.jpg)
a reliable wire harness. To avoid having to run one wire to one taillight and then another wire from that one across the trailer to the other taillight, it features separate left and right brake lines from the plug. It significantly facilitated the task of running the cables. The directions appeared to be very clear. An accompanying cover for the trailer male plug would have been good. But if you follow my example, it kind of works. The female connector is located on the smaller harness that is included with it and is intended to be wired to your car. Since my car already has a harness designed to feed the trailer signals, I didn't need that one. I therefore severed the female plug from the unnecessary cord. I cover the male connector on the trailer with that female connector.
4.5/5
EASY GRIP. Plugging in this 7-way trailer light tester into your vehicle is easy with its ergonomic design. It features two hooks on either side of the tester for a better grip when plugging in or unplugging.
LONG-LASTING LEDS. To produce a bright, easy-to-read signal and ensure long-lasting use, this vehicle-trailer wiring tester is constructed with LED diodes.
VERSATILE. Quickly and confidently confirm the functionality of your vehicle's trailer wiring harness with this connector tester for the taillights, brake lights, reverse lights, turn signals, electric trailer brakes and auxiliary power.
DURABLE HOUSING. To resist the elements and maintain reliable performance, the housing of this tow wiring tester is made from durable black plastic that will never rust or corrode.
SIMPLE TO USE. For each electrical function, an LED lights up indicating a good signal. Just plug the wiring tester into your vehicle's socket and have a helper check the LED signals as you activate them from the driver's seat.
$234
On a 2015 Audi Q5, I utilized this to fix a brake light issue. The trailer's turning signals and running lights functioned, but the brake lights did not. This tester was very helpful in convincing Audi repair technicians that the problem lay with the vehicle (they wanted to blame the trailer). It turned out that the car's computer required a software update. The service technicians confirmed that the software update fixed the problem after the tester displayed the proper light behavior after the upgrade. Now, the trailer brake lights function.TIP: On the testing, the Right and Left lights turn on simultaneously when someone presses the brake pedal. But if a brake controller is not connected inside the vehicle, the brake light indicator on this tester is dark. I think the tester's brake light indicator is for use when a brake controller is connected. It would make sense for this tester to be able to test for both trailers with brakes AND trailers without brakes by simultaneously turning on the left and right lights, which is what the trailer actually does. In that instance, the tester's brake light indicator should turn on to confirm that the trailer's brakes will be applied.
4.3/5
Available for most full-size trucks
Exact OEM fit plugs directly into the manufacturer's wiring system
Reinforced 90 degree angle connector provides convenient and quick installation
Retains operational function at the rear of the vehicle
7 Connector application for selected Chevrolet, GMC, Ford, Dodge, Nissan and Toyota models
$234
The small details are what earn a product a perfect score. That works. Installation followed the instructions exactly. It's fantastic that there isn't any need to splice into the existing wires, that there is enough cord to place the connection where you want it, etc. The small details. Where the wires join to the ends, they are not properly wrapped. To assist prevent mud and water from getting in and following the wires into the connections, I ultimately taped them. I connected them without using connection or dielectric grease because I didn't have any on hand. When I was finished, I discovered connection oil in the components package even though it wasn't stated in the instructions. I wished I had spotted the grease sooner or that it had been included in the instructions. I taped up one of the connectors on the "Y" splice well because it didn't really have a "click" connection with the existing connection. An OEM-style strain reliever is present on the 7-way connector that is put in the bed. Due to its unfortunate orientation to the side rather than downward, it somewhat pressed against a metal component next to the hole I had drilled. It shouldn't pinch anything and I was able to bend it a little, but it looks like a straight down position would have been preferable. The screw holes on the new 7-way connection are also sculpted to accommodate a hex head bolt, which is strange because a screw was used for installation from that side, and the screw's hex head would "strike" the molding and prevent it from driving or sitting. They came up with washers to prevent the screw from sinking into the molding as a workaround, although a better mounting system would have been preferable.Therefore, I would repurchase it for another truck/5th wheel installation, but after using this one, I might also look around to see if there was a better product available that does the minor things correctly.Now, we're waiting for the RV to return from the shop to make sure everything is in working order. I'll update the review if something doesn't function as it should.
If you have a trailer with a hitch, you will need tow hitch wiring in order to connect the trailer's lights to your vehicle. Without tow hitch wiring, the trailer's lights will not work and you will not be able to see where you are going.
Trailers are normally wired with a four-way connector. This connector has four wires that connect the taillights, turn signals, brake lights, and marker lights. The four wires are typically red, green, brown, and yellow.
When towing a car, you need to wire it so that the taillights and brake lights on the car being towed are operational. The best way to do this is to use a wiring kit that is specifically designed for towing. These kits come with everything you need to wire the car correctly, and they are relatively easy to install.
The cost of installing a trailer wiring harness can vary depending on the make and model of your vehicle. However, the average cost is around $150.
It typically costs around $200-$300 to have a tow package installed on a truck. This price can vary depending on the specific truck and the type of tow package being installed. Some tow packages can be more complex than others, which can impact the overall cost.
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