Curt custom fit vehicle wiring for your 2013 Toyota RAV4 are available from Installation instructions and reviews for your Toyota custom fit vehicle wiring. Expert service, and cheapest custom fit vehicle wiring price guarantee. carries a complete line of Curt products. Order your Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector part number C56166 online at or call 800-298-8924 for expert service.
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2013 Toyota RAV4 Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Curt Custom Fit Vehicle Wiring

(52 reviews)

Code:   C56166



Shipping Special

Shipping Weight: 1.67 pounds


2013 Toyota RAV4 - Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Quickly and easily install a 4-way trailer connector on your Toyota RAV4 with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.

Confirmed to fit your 2013 Toyota RAV4


  • Provides a 4-way flat trailer connector at the back of your Toyota RAV4 to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Connects quickly and easily
    • Locate connection points in rear cargo area
    • Plug in T-connector
    • Run hot lead to car battery
  • Includes a tail light converter to ensure that your Toyota RAV4's wiring matches that of your trailer
    • Powered module connects directly to battery to avoid overloading vehicle's electrical system
  • Constructed using surface-mount technology (SMT) for consistent, reliable performance
    • Maximizes trailer light yield and intensity while producing minimal heat
    • Ensures superior operation in rough road conditions
  • Comes with dust cap for 4-way flat connector
  • Made in the USA


  • Maximum amperage:
    • Stop/turn lights: 3 amps per circuit
    • Tail lights: 6 amps per circuit
  • Limited 1-year warranty


This custom-fit T-connector plugs into your Toyota RAV4's wiring harness, which is located in your rear cargo area. You will have to remove interior trim paneling to access these connection points. Once you've plugged in the T-connector, run the hot lead up to your car battery. Connect the lead to the included fuse holder, and then connect the fuse holder to the positive terminal on your battery.

Once installation is complete, the 4-way connector will be stowed in an out-of-the-way location within your cargo area.

It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.

Powered Tail Light Converter with Surface-Mount Technology

A tail light converter is built into this T-connector. This converter is a circuit-protected, battery-powered unit that bypasses the electrical routes that are used by a basic wiring harness. As a result, there is virtually no draw on your tail light circuits.

Because most trailers run on a two-wire system - wherein the brake and turn signals are carried on one wire - the separate brake and turn signals from your Toyota RAV4's three-wire system need to be combined so they are compatible with the wiring system of the trailer. This converter combines the brake and turn signal functions of your automobile so that they run on one wire to properly activate your trailer's tail lights. Note: This will not affect how the tail lights on your Toyota RAV4 operate.

Curt builds each tail light converter using surface-mount technology (SMT). This method of construction involves soldering electronic components directly to the surface of a printed circuit board. SMT eliminates the need for leads, which are used in older through-hole technology. The result is a circuit board that is smaller yet provides more routing area and that offers superior performance, reliability and durability.

Curt SMT Circuit Boards

Circuit boards constructed using SMT have been shown to perform better under rough conditions with excessive vibration than those made using the through-hole method. And where would vibration be more likely to occur than in towing applications? Curt converters also produce less heat, leading to increased durability and longer life. In addition, lower levels of resistance ensure better performance, especially for parts that operate at higher frequencies.

Each Curt circuit board is made using high-quality components that are pieced together in the most technologically savvy fashion, leading to greater predictability and reliability in functioning.

56166 CURT T-Connector - Surface Mount Technology - 4 Wire

C56166 Installation InstructionsInstallation Details C56166 Installation instructions

Video of Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

Videos are provided As a guide only. Refer To manufacturer
installation instructions And specs For complete information.

Video Transcript for Curt Custom Fit Vehicle Wiring C56166 Review

Today were going to review part number C56166. This is the Curt T-Connector Vehicle Wiring Harness with the 4-pole flat trailer connector. Now this part number is a custom fit part number. This is designed to fit the Toyota RAV4 and the Toyota Avalon and Avalon Hybrid Vehicles starting in 2013, but I would recommend to go to our fit guide and put in your year and model vehicle and it would let you know if this would work on your vehicle. Now this will provide a 4-way flat trailer connector at the back of your vehicle to power your trailers signal lights. It does connect quickly and easily. You have to locate the connection points which are in the rear cargo area, plug in these t-connectors behind the rear taillights and then you run the power wire to the car battery.

This does include a taillight converter to ensure that your vehicles wiring will match that of your trailer. This powered module converter right here connects directly to the battery to avoid any overloading of your vehicles electrical system. Now this does use the surface mount technology, the SMT technology, it gives you consistent reliable performance. Itll help maximize your trailer light yield and intensity, but producing minimal heat. It also ensures superior operation in rough road conditions. It does come with everything shown on the table here.

Now basically a few specs on this. The max amperage that this harness would take is on the stop and turn lights it would be 3 amps per circuit and on the taillights it would be 6 amps per circuit. Basically when you go to install this, it comes with a nice set of instructions which are very detailed. It has some good pictures of where the connections are. What you would do is take this converter to the back of your vehicle and in the rear cargo area you gain access to your taillights, behind your taillights. What you would do is start on your driver side and use the t-connector here with the yellow wire in it, thats for the driver side.

What youll do is unplug the taillight and then plug these in inaudible 00:01:56 into the taillights. Then what you want to do is the white wire on this side, it has an eyelid on it, you want to get a good clean ground up against the vehicle. If you have a screw there you can use, if not they do include a grounding screw. Then what you want to do is take the other set of t-connectors, the green wire this will go to the passenger side of the vehicle, run this over to the passenger side and then same way, these t-connectors will plug in behind the taillight on the passenger side. Then what youll need to do is this black wire that comes out of the converter is a power wire, this would need to run to the front of the vehicle to where the battery is. Thats why they give you this length of wire. What you will do here is use the included butt connectors to install one end of the wire to there, run the wire all the way to the front of the vehicle.

If you need to use zip ties, they include them here to secure any of the wiring. Take the end that comes out to the front, what youll want to do with this is attach it to this fuse holder. One end goes to the fuse holder using another butt connector. The other end, the other wire on the fuse holder will have the eyelid put on it and then this would connect to the positive side of the battery. Then what youll want to do is pop open the fuse holder. They have an included 10 amp fuse that you would just install in there and then close it into place. Now it also includes this double face piece of tape. What that would be used for is on your converter you can stick this to it and then it adheres this converter in the rear of the car to a good secure place. It also comes with this nice rubber dust cover. What thats for is you can install this onto your 4-way connector that will be at the rear of your vehicle. When youre not plugged into a trailer, you can just put this cap just like that. Put it on the correct way. There we go. You just line that up and itll go right on like that. That should do it for the review of part number C56166, the Curt T-Connector Vehicle Wiring Harness with the 4-pole flat trailer connecter. .

Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C56166

Average Customer Rating:  4.6 out of 5 stars   (52 Customer Reviews)

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.

- C56166

by: Steve11/07/2015

This review is for the Curt C56166 wiring harness which was installed on a 2014 Toyota Rav4 on November 7, 2015 and also contains some tips on the installation that might be of help. Tools needed: Medium Phillips head screwdriver, 10' 12 and 14mm sockets, short extension, side cutters, extra ties, wire stripper/crimper, trim panel tool, 1/4 nut driver OR drill,1/8 bit and a Phillips sheet metal screw. Unless you're as skinny as a rail, I also highly recommend driving the front of the vehicle onto a set of ramps. In the installation video that E-Trailer provides (btw good job), you'll notice the guy is wearing gloves. If you don't mind getting scratched up and a little bloody, I strongly recommend wearing them in addition to a long sleeve shirt. When prying the plastic cover off the forward cargo hooks, pry at the CURVED end to expose the bolt. Don't forget to remove the 2 other bolts on either side of the rear side panels as well as the phillips screw on either side and both of the cargo hooks. When you are removing the bottom threshold, look for the black square bosses that are about 3/4 square and pry underneath them to pop out the retainers. On the rear middle panels, there were only two retainers each side; one close to the bottom and one at the top. I went ahead and loosened up both sides and then had my wife hold each side back in order to gain access to the wiring. The driver's side was easy, but the passenger side had the tab you are supposed to push down facing away. Gloves don't work here, take then off. I had to use a small screwdriver to depress the tab as I have big fingertips. The harnesses snapped together as they should. The video shows a 1/4 nut driver being used to secure the ground with a self tapping screw on the driver's side. If you look at the location (just above the oval opening in the sheet metal where he installed it) BELOW that oval opening is actually a dimple in the metal which makes it easier to drill as the bit will not wander. I don't trust those cheap self tapping screws so I drilled a 1/8 pilot hole then scraped around the hole to bare metal and used a phillips screw to secure the ground. After you have spliced the black wire and removed the grommet and put a small slit in it (the grommet is actually on the SIDE of the well; although in the video it looks like it is on the bottom) make sure the grommet faces the correct way and run it up the wire to about 12 - 18 inches before the butt connector. When reinstalling the grommet, take care to push gently around the OUTSIDE not the middle as you'll push it through the hole (like I did ) and end up having to remove the grommet from the wire and start over. When reinstalling the rear cargo hooks on both sides, make sure the locating tab is facing up and fits into the hole before tightening. I'm not a fan of running the trailer connector out the back lift gate. On the bottom of the spare tire well towards the front of the vehicle there is a large grommet. I simply removed this, put a slit in it and ran the trailer connector through this and under the vehicle and secured it to the hitch. There is more than enough wire to do this. Running the black wire to the battery was easier than I anticipated and a coat hanger does the job of fishing the wire from the bottom to the top. You can NOT test the connector with an Ohm or Voltmeter as it will show battery voltage at the yellow, green and brown pins. You must use a test light as shown. All in all, a fairly easy install for me as I am mechanically inclined and it took me 2 hours. Kudos to E=Trailer for a great instructional video, great products and great service. 231571

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by: Ronald04/01/2013

The harness arrived in good condition and fairly quick, since it is a new item for the 2013 Rav 4. The install is not exactly easy. It took myself and a friend (an Aircraft A&P mechanic) 4 hours to complete. We were being careful not to break any interior plastic which added to the time. My wife did not like the idea of hanging the connector out the hatch so we decided to run it our the bottom next to the spare tire through a rubber grommet ..then sealed the grommet with silicone and mounted the flat connector to the provided are on the hitch. It might be helpful to test the connectors provided with the harness before trying to disconnect the connectors on the vehicle. The vehicle connectors are in a very tight spot and trying to unlock the tab is not easy. Pictures of how to unlock the tab connectors on the instructions would have been helpful. I thought it would be a good idea to teat after the install with a volt/ohm meter. To my surprise, I had 12V at each leg without anything turned on. We then connected the trailer and all worked as expected. We still don't understand it but it works just fine. Some serious magic in that little black box LOL. Ron 73681


That is exactly why we work so hard to have videos of our products. Sometimes a different look can make all the difference in an install. As soon as we have a 2013 RAV 4 come through our shop, we will have wiring videos available on the site.

Patrick B - 04/04/2013


Getting a 2013 rav next week. Any additionall light you can shed on removing plastic pcs. or where you ran hot wire would make me forever in your debt. I am a little bit of a detail frek also.Thanks.Mike

comment by: mike - 04/11/2013


I will pass your question along to Ronald. Keep an eye on this review in case he decides to follow up.

Patrick B - 4/24/2013


Mike,One suggestion I have for removing the plastic interior panels is to purchase a set of nylon pry bars designed for this purpose. I used these from Harbor Freight tools:http:/ and worth every cent!Along with the screws and bolts mentioned in the instructions, there are many plastic retainers that will be pulled straight out to remove. Be careful not to them since the do slide out of their mount brackets.I ran the hot wire to the battery through a rubber plug under the spare tire and under the Rav to the front. There are plenty places to tie wrap along the way forward and secure it. I did run it through a hole in the frame and made sure to use a grommet to assure that it did not chafe and short out.I also ran the 4 way plug through the same rubber plug under the spare and routed it to the tab on the hitch and secured it. All wires were then sealed with silicone on the rubber plug.I hope some of that is a help for you.Ron

comment by: Ron - 04/25/2013


Thanks for the follow up Ronald!

Patrick B - 4/25/2013

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by: Don C.09/25/2014

The 2014 Rav4 hitch and wiring harness arrived in good shape within 3 business days of my order. Installing the hitch was simple and easy (30 to 45 min) with the use of a jack to hold one side while starting the bolts on the opposite side. I did not remove the exhaust as suggested but used a wood block to hold it aside while installing the bolts. Installing the wiring harness is more of a challenge, especially if you have little or no experience. The instructions and few photos are not much help. After removing all the rear panels as instructed you also have to loosen the complete side panels enough to reach inside with your arms and the tools needed. I loosened the driver side rear panel to allow access to the floor of the rear passenger area. This will allow you to eventually feed the hot wire forward. Wear a long sleeve shirt to protect your arms from the sharp edges of the plastic side panels. After making all the connections, I fed the hot wire forward under the inside plastic floor guards for each door on the drivers side. Under the dash (above and to the left of the brake pedal and under the insulation) there is a large rubber grommet around the vehicle main electrical harness. I used a stiff wire to push through the grommet and feed the hot wire to the battery. There was more than enough wire supplied to route the wire this way. Even with my previous experience it took me just over 4 hours to complete the installation. I am very pleased with the product and would recommend "etrailer" to all who read this review. 152980


Good call on where to push power cable through fire wall. You saved us some time. Thanks!

comment by: Harry W - 10/06/2014


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by: Chuck K.06/07/2015

Installed this in my new 2015 RAV4. Took a bit longer than I expected due to a considerable amount of disassembly and partial disassembly of vehicle's plastic trim parts. The OEM connectors were actually behind the upper trim panel which also required partial disassembly (the instructions made no mention of this). There was a convenient tapped hole in the chassis that could be used for the ground point. Had to run to local hardware store to get an M6 metric pan head screw to accomplish the grounding. I ran the power cable up the passenger side of my vehicle because I had previously run something else through the firewall boot on that side. The driver side also has a firewall boot, but it is hidden behind engine parts making it extremely difficult to get at. As a result of running my wire along the passenger side, the supplied wire was too short to reach the battery. I simply added more 12 ga. wire. Accessing the OEM connectors behind the partially disassembled panels wasn't real fun. A bit tough to get both hands in there. When I was done with that part, there were some pretty good "indents" in my wrists where the plastic trim pushed against me. With a run to the local hardware, and a lunch break, it took me about 4-1/2 hours to complete. Connector tested fine with a test light. 201380

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by: vern06/23/2014

thanks to the guy suggested plastic trim tools from harbor freight they were helpful, drivers side T connector wires need to be longer as would not let me put convertor box in a good place so I extended them. ran battery wire in side vehicle tucked it under plastic door trim and put through firewall where wire bundle and hood latch went through used screwdriver to punch hole and small electricians fish tape to feed wire through. overall very pleased with kit and instructions. installed on 2014 Toyota rav4. if you are not used to working on cars/mechanics it may be a bit much to do. 137253


I M VERY HAPPY with the products and recomemd you site to everyone I can.

vern - 06/24/2015


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by: CJ09/04/2013

Installed nicely but the instructions were a little vague on where to best mount the module for the RAV4 and where to put the ground screw. I put the module on the flat-ish spot on the driver's side in front of the tail light. I put the ground screw in the 3/4" joint running up the door frame behind the panels and I just used the self-drilling screw to make the hole. The edges of the panels you pull out have sharp spots so be careful to not get little cuts and scrapes. as you're reaching in for the connectors. I ran the power cable inside the RAV4 and pushed it through the big rubber boot under the driver's dash. (using a long springy rod to get string through to pull the wire.) From there it was an easy run to the battery. All in all it wasn't a bad install at all. It took some patience and rereading the instructions a few times to get it done but very doable. Don't rush if something doesn't look quite right because the instructions are correct if a little vague in spots. 98149

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by: Larry R.03/07/2015

This product was exactly as described in the product description and the installation was easy. I watched the video for the muffler hanger release to drop the muffler and a little CRC did the trick. I installed the trailer hitch on a 2014 RAV4 and the product value is exceptional, a very well constructed hitch with pleanty of towing capacity. I would recommend this hitch to everyone. 177404


It is still working perfectly fine with no issues. It is a great product.

Larry R - 03/10/2016


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by: Randy P.09/12/2014

Got the hitch & wiring harness kit in very short order. Put hitch on in half hour, wiring took about three hours. Keep in mind I'm 72 years young, so I'm very happy with E-Trailer products and instructions. Thank you E-Trailer !! 150874


The was only hard to install because of my age, 73. Although routing the wiring was a little difficult, directions where OK. Its a good product, thanksRandall

Randy P - 09/13/2015


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by: Blair H05/16/2015

The wiring kit itself is quality and includes everything you need except for the few tools such as a screwdriver, trim tool, wrench, and box cutter. This job isn't incredibly difficult, but does take some planning - you definitely need some time - it took me about 2½ hours total to complete it. It also really helps to either have a set of ramps, or access to a tall curb that you can drive half the car up on to crawl underneath. The nylon trim tools are also very helpful. Watch the videos that eTrailer put together, take your time, wear long-sleeve shirt and have gloves handy. It ended up working out really well, and I would do it again, but it was quite a time consuming job. One more suggestion - when you order this, spend the extra four or five dollars and buy the wiring tester - it will ensure you can verify the wiring was done properly afterwards. 193473

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by: Norman J01/25/2015

I ordered this harness to go with the hitch for my 2013 Toyota RAV4. The hitch was simple to install and took about 1/2 hour. The harness took me three hours and the directions were not specific to the 2013 model. Photos showed the connector placement near the tail light assembly but on my vehicle it was located about 8 inches above the light assembly. This required removal or two additional panels. Disconnecting the factory connectors was difficult on the passenger side because the release faces away and space is very tight. A power line needs to be run to the battery and I found this easiest to do along the passenger side. A hole must be drilled through the firewall to route the wire. This kit includes everything you need and it worked very well after installation. I recommend it. 171188

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by: Manny B.04/14/2014

Hitch construction and finish look great. Installation was a snap, as advertised. I did it alone with the Rav4 up on ramps. Haven't towed yet but expect no problems. 124948


Used hitch for bike rack and light towing. A solid hitch that still looks new after a year.

Manny B - 04/14/2015


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by: Mike Z.08/03/2015

The installation of this went easier than expected. You need a good pair of crimpers for the butt connectors (a heavy pair like Channellock, not cheap ones from Walmart) and you really need to drill a pilot hole for the ground screw, if you use a drill to run in in like the video it will likely shoot someplace down into the frame and you'll need to go get another screw. Also you cannot test the connector with a volt meter, the module is apparently solid state and will just read 12 volts on all the connectors due to leakage current. You need a tester like they have in the video which provides a load. Also you need the trim removal tool, you don't want to bugger up the plastic panels and it makes the job so easy. 216298

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by: Gerry B.05/03/2016

The supplied equipment was ok, but based upon the length of the wires and etc. it appeared that the electrical control unit (which was supposed to be bonded to the wall of the car using the provided peel off sticky backing stuff) would in my opinion be subjected to extreme heat from summer sun and could come loose. Therefore I didn't use the sticky backing stuff, basically I made a case and put the unit in the case then suspended the case mechanically in the likely hot area by the car wall. That's my take on the sticky backing stuff, maybe it has high temp holding power and works fine, but I wasn't going to find out because on the Rav4 you remove a lot of trim pieces that only a fool would want to remove again. 248306

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by: Rich Stro09/25/2013

The Trailer Hitch apparantly had been damaged in shipment because the spacing between the mounting holes was too close by 3/8". I had to use a Hydraulic bottle jack and 4x4 wood block to expand the mounting pads so they wold fit. I think they need to put some foam in the packaging.. so when shipper drop the box it doesn't cause the mounting plates to get closer.. Other than that no problem only took 15 minutes to install 101421

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by: Harry W.10/07/2014

If you take your time, read the instructions carefully, watch the Tow Ready video and enlist the help of a friend installing the hitch and wiring was very straight forward. The hitch takes about a half hour and the wiring takes about 3 hours. The good news is the wiring actually worked (of course it did), and the hitch is a perfect match (with a little tweaking lining up the mounting holes) on my new Rav4. I will repeat a tip that I read from another reviewer; the rubber grommet hole through the firewall is located upper left behind the brake pedal. Knowing this saved a lot of time. 155055

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by: Lee C.03/20/2014

Last time I purchased from etrailer was 9 years ago until this time and as I remember all was 5 star back then also. As usual an excellent online buying experience from Product arrived in 3 working days and was the correct hitch plus the wiring harness for my 2014 Rav4. High quality products which makes even installing a trailer hitch no problem. I did think I should have received the Curt receiver hitch plug as I have on other trailer hitches. The cost to ship a plug now costs less than the shipping. The only bummer on the whole deal. 121396

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by: Michael07/18/2015

Thanks to the great customer service and excellent video, the installation was very easy. The wiring harness arrived in three days and in perfect order. Following the video, I was able to install it in 2 hours. The installation was simple and the components worked flawlessly. The task required a screw driver (flat head and phillips) , socket set , wire cutter, pliers and a trim tool. I have never done this before and had no issues. Be sure to follow the video and all will be perfect. 212739

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by: Joe M.06/05/2015

Product arrived in two days in great condition. 15 min hitch install and one hour for harness. I decided against running my power wires below the truck and instead ran it down the the left side under the the door sill plates. Everything works as promised and I'm looking forward to having another tow vehicle in the garage for light duty towing. E trailer was fantastic. I received three emails from George on my hitch. He was great. 200996

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by: Joe M.06/05/2015

Product arrived in two days in great condition. 15 min hitch install and one hour for harness. I decided against running my power wires below the truck and instead ran it down the the left side under the the door sill plates. Everything works as promised and I'm looking forward to having another tow vehicle in the garage for light duty towing. E trailer was fantastic. I received three emails from George on my hitch. He was great. 200995

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by: TC05/21/2014

2014, RAV4 just installed, checks out ok. Took while removing interior molding and running wire to battery. Wire harness was EZ with the T-connectors. Even though website has much info on installation, I still called asking for help, customer service was helpful and understanding. Just wish that the power converter was designed to be more accessible/replaceable in the event it should ever malfunction. 131666

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by: Brent Frazier03/12/2014

Hitch installed in less than 15 minutes with another pair of hands. The electrical harness was a bear, though. The connectors were difficult to disconnect because of the tight space. Went well from there, though running the wire to the battery was interesting. I ran the wire through a hole punched in one of the tire well drain plugs, then sealed with silicone. Electrical took about 3 hours. Works fine. 120418

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by: RICHARD04/23/2016

Great product! Quick delivery. The instructional videos were great. I watched them a couple of times and was able to install on my 2016 Toyota Rav4 Hybrid by myself in about 30 mins. The same with the wiring harness. Great instructions and video. Was able to do myself in about 1 hour. Most of the time was spent being careful removing the trim. Great product, great price and great support. Well done! 246676

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by: Steve01/17/2014

Installed this product on a 2013 Toyota Rav4. This wound up being one of the more enjoyable parts of adding a trailer hitch to my new car. The unit was pre wired with Toyota connectors so all I had to do was plug it in. Fortunately, the interior panels that needed to be removed were no problem on the Rav4. Other vehicles may be more problematic but it works as advertised 114093

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by: Andy A.02/19/2016

I was really happy with the service I received from Not only did they ship my order in an expedited manner, they called me to let me know they actually had a better match for my vehicle than I had ordered at a better price. Hard to beat a company that puts the customer before their profit. Great job 238160

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by: Howard K.03/17/2015

I could'nt be happier. Once again, etrailer delivers nothing but quality and ease of installation and excellent product. I was not looking forward to working on my Rav4, as everything else I did with it was difficult at best, but etrailer made it EASY and Painless! THEY made it simple and stress free. Thanks! You rock! 179039

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by: Tony I.06/22/2015

This wiring harness is foolproof. Great instructions and pictures. Installed in my 2015 Rav 4. Instead of drilling a hole for the ground wire screw there was an m6X.8 weldnut on the drivers side near the connector you need to access. You can scrape the paint off to bare metal and attach your ground wire here. 206484

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by: Randy R09/23/2014

The light kit is well made and fit the vehicle well. I would recommend going to u-tube and watch a video before you start the installation. The worst part is running a hot wire to the battery. There are no hot wires in the back of the car to tie in to, so be careful how you run a wire to the front. 152626

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by: John R.10/22/2014

Perfect fit and the timing of receiving was really great. The product was in good condition when received. I am completely satisfied and I will order again when the time comes. Great service, product and price. Your web site is very helpful in choosing and installation of the product I purchased too. 157346

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by: June B.02/24/2014

Received hitch in a few days. Fit perfectly. The recommendations I received from Katie D were exactly what I needed to make my decision. Product arrived in perfect condition. Very pleased with product and service. Have recommended your site to someone else who needs a hitch. Thanks for your help. 117373

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by: Doug08/26/2015

Product is great except the bolt holes didn't line up. I had to cut a 2 by 4 and use my bottle hydraulic jack to make the spacing greater between the two side mounting flanges. Had to widen the spacing about 3/4"of an inch. After about 3 tries I got it right and it was then easy to install. 221918

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by: Bob B04/20/2016

Return customer. Web site shopping experience was flawless. Post-sale followup was thoughtful. Product arrived in Northern Illinois in less than 24 hours. Installation videos and accompanying documentation were spot-on. I couldn't be happier. 246184

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by: Donald Drouin09/04/2013

My box was delivered and the top of the box was opened and then re-taped by someone. I asked the UPS guy if all the parts were there and he said "I hope so". I have not had the time to go through the box but I will at my earliest convience. 98167

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by: Gene F.03/06/2014

This takes the longest time to do because on the RAV 4 you have to remove the rear side panels. The left side wires could be longer so you can mount the convertor box in spare tire compartment. I spliced longer wires on mine. 118610

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by: Patrick04/13/2013

Super fast service. This is the way businesses are suppose to be run. Ordered on a Sunday delivered and installed by Thursday. Everything was there and in perfect shape. Will be ordering more. Thank you. 75733

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by: Jon D08/13/2015

The instructions that came with the product were a little out dated, but the online video was clear and easy to follow. The same with the installation of the hitch. Great products and great company. 219066

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by: Jim MIko04/02/2013

Fit my 2013 RAV 4 as advertised. Easy to install except for the line to the battery, that was a pain. I ran the line from the battery through the interior of the car as it is more protected. 73807

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by: Jeff B04/29/2014

This wiring harness was actually surprisingly easy to install. The directions were very clear about how to properly and safely connect the wires to the tail lights and to the battery. 128164

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by: larry beck10/07/2015

The only reason for not an excellent rating was the packaging, it was broken open. Fortunatly all the pieces were securely taped to the hitch. It fit perfectly as advetised 229458

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by: Jeff R.12/17/2014

Two thumbs up... clear directions. I had no issue installing even after a hard Christmas party the night before... installed without issues, through one blood-shot eye.. 165828

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by: Woody04/09/2015

I'm assuming it's fine as I had the Toyota Dealership install it. Total time (with the Class III Hitch), two hours and no negative comments from the service department. 184219

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by: Daren R.01/28/2015

Ordered a hitch for my wifes Rav4 so she can pull her little boat. Shipping was fast and it took all of about 20 min. to install. I'll let you know how the wiring goes. 171619

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by: Tom p02/23/2016

Hitch and wiring are very nice. Easy to install. Wish they would package them better. It was sent in a box with no packing so it got scratched and chipped in shipping. 238530

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by: David K03/10/2016

Hitch was very easy to install. The wiring was a little more entailed, But not to difficult. I had the use of a lift to make running the wire to the battery easier. 240440

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by: J. Ledoux03/06/2014

This is my second order curt T connector set . The first one easy I and this second one should be the same. the shipping good and thank you for your concern. 118603

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by: Scot S08/25/2013

Save alot of time .. Better then do-it selfer and piecing it together 96831


Which hitch and wiring kit do I need for a 2014 Rav4. The hitch will be a class II.

comment by: Larry - 03/20/2014


I have added a link to all the hitches that will fit a 2014 RAV4. There is only one Class II 1-1/4 hitch offered, from Curt. Most of the hitches offered are Class III 2 inch hitches. I would strongly encourage you to consider a Class III, 2 inch hitch instead of a Class II. There are far more options as far as bike racks and cargo carriers for 2 inch hitches. Even if you will not ever need the towing capacity, a Class III 2 inch hitch will be more versatile. Curt offers a plug-in wiring harness, part # C56166
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
. You will need to run 1 wire all the way up to the battery and use the crimp connectors to make the connections. This separate power wire enables the entire trailer wiring system to isolate the power draw off of the vehicle.

Patrick B - 3/21/2014

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by: Robert Prokopchak07/28/2014

Was thankful you had a on line ability to watch how to put in thank you would never been able to find the connection to hook up to with out it. 143238

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by: Bryan05/19/2014

Once you figure out how the panels come apart it was very easy. Just have to take your time so you don't break any of the interior body panels. 131290

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by: John D09/21/2015

Pretty easy to install following video. I chose to install the plug outside. Only negative is that the module would not stick. 226733

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by: Oscar C.05/12/2015

Vary easy install. Everything I needed to do the install was in the box. I highly recommend this product. 191973

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by: Michael05/07/2016

Everything was as described and worked beautifully. 248936

Show More Reviews

Ask the Experts about this Curt Custom Fit Vehicle Wiring
Do you have a question about this Custom Fit Vehicle Wiring?

  • Installing Curt Easy Mount Trailer Connector Bracket, Part # C58000, on 2013 Toyota RAV4
  • The Curt Easy Mount Bracket for 2-inch hitches, part # C58000, provides a mounting surface for both flat (4- or 5-way) and round (6- or 7-way) vehicle side trailer connectors. It is made of durable powder-coated steel and includes stainless steel hardware to secure it to a 2-inch hitch, such as the Curt # C13149. (This Class III hitch carries 525-lb tongue weight and 3500-lb gross towing weight ratings; 4000-lb GTW with weight distribution.) The one end of the Curt bracket mounts to...
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  • Trailer Hitch and 7-Way Wiring for 2016 Toyota RAV4 SE Towing Tear Drop Trailer
  • We can help you with both a hitch and 7-way wiring set-up for your 2016 Toyota RAV4 SE. For your towing application I recommend a 2-inch Class III hitch, the Hidden Hitch # 87697 that you referenced. An install video and article are linked. With it you can use the ball mount # C45030 along with either 2-inch ball # 63845 or 2-5/16-inch ball # 63847. If you need a different ball mount the linked article will help you determine this. For a universal-fit towing mirror to extend your...
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  • Curt Trailer Hitch and Wiring Harness for a 2008 Toyota RAV4
  • Starting with a trailer hitch the Curt hitch for your 2008 Toyota RAV4 is # C13149. This is a 2 inch hitch rated for 525 pounds tongue weight and 3,500 pounds gross trailer weight. But you will want to consult the vehicle owners manual to determine the capacities of the vehicle. Whichever is lower, the hitch or vehicle, is the capacity you need to go by. I have linked the instructions and a video showing installation of this hitch for you. For a Curt trailer wiring harness, use # C56165....
    view full answer...

  • Trailer Hitch and Related Items Needed to Tow Pop-Up Camper with 2015 Toyota RAV4 EXL
  • Two sizes and classes of hitch are offered for your 2015 Toyota RAV4, a light-duty 1-1/4-inch Class II and a 2-inch Class III. Since you're going to be towing I strongly recommend the higher-capacity Class III type, such as the Hidden Hitch # 87697 that you referenced. This hitch bolts on with no drilling, includes the hardware and fits all RAV4 models. I have linked an installation video showing your same model year RAV4, the written instructions and two helpful articles on hitch installation. Towing...
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  • Does a Trailer Hitch Void Warranty of a 2016 Toyota RAV4 Hybrid
  • The Curt hitch part # C13149 is a confirmed fit for your 2016 Toyota RAV4 Hybrid and would work well for you. I attached an install video for you to check out as well. When you install an aftermarket part on your vehicle like a trailer hitch in this case, you are protected by the Magnuson–Moss Warranty Act. This act states, in part, that unless the installation and the part caused a problem then the warranty cannot be voided. I recommend looking it up online. If you wanted to do some...
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  • Is Drilling Required For the Installation of the Curt Wiring Harness # C56166 On 2013 Toyota RAV4
  • Based on my research, the wiring harness you would need for your 2013 Toyota RAV4 is the Curt T-Connector # C56166. The Curt Wiring Harness # C55106 you referenced is intended for a 2007-2011 Honda CR-V. I have provided a link to the installation instructions for this particular harness. The wiring harness will not require any drilling as the connector is installed in the inner trim area of your vehicles rear cargo area, however you will need to shoot in a self-tapping screw during the...
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  • Tips on Routing Trailer Wiring Harness Power Wire on a 2014 Toyota RAV4
  • Running the power wire to the battery when installing Curt trailer wiring harness # C56166 on your 2014 Toyota RAV4 is not all that difficult, it can just take some time depending on how you want to route the wire. How much time it takes varies. There are a few different methods to route the wire. I have included a link to our help article that covers tips on routing the power wire. It must be attached to the battery, no other power source will do. This is because the harness has only...
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  • Troubleshooting Trailer Lights Not Functioning When Tow Vehicle Headlights Are Turned On
  • Since I do not know what tow vehicle or wiring harness you have I will try to give you the best general guidance I can. Usually the best way to troubleshoot your wiring issue is to disconnect the trailer from the truck's 4-pole and test each one individually. However, based on your description of the problem - all trailer lights working until you turn on the vehicle headlights - there is one most-likely cause that should be easy to correct. This type of issue is typically related to...
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  • 2 inch Trailer Hitch Availability for a 2016 Toyota RAV4 Hybrid
  • The Curt hitch part # C13149 that you referenced is a 2 inch trailer hitch that has been confirmed as a fit for your 2016 Toyota Rav4 Hybrid. This would be a great option for you. I attached an install video for you to check out as well. If you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise or 4 inch drop. It also includes a 1-7/8 inch ball, 2 inch...
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  • What Size Wire Gauge Should be Used to Extend the Power Wire for Trailer Wiring Harness # C56166
  • Typically, routing the power wire on the inside of the vehicle uses up more wire than routing it underneath. But either way you still need some extra wire so lets look at what you will need. You could get away with using a larger gauge, especially over such a short distance. But I would go ahead with some 12 gauge wire like # 12-1-1, sold in increments of 1 foot.
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  • Trailer Wiring Harness and Hitch Recommendation for a 2014 Toyota Rav4
  • Actually both of the trailer wiring harness options that are available for your 2014 Toyota RAV4 use converters. It's just that the converter in the Tow Ready wiring harness part # 118578 doesn't look like a traditional converter like the Curt Harness part # C56166 that you referenced. Between the two I would go with the Tow Ready as it has a higher amperage rating at Stop/turn lights: 4.2 amps per circuit Tail lights: 7.5 amps per circuit Whereas the Curt has Stop/turn lights:...
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  • Hitch and Trailer Wiring Recommendation for a 2013 Toyota RAV4
  • For your 2013 Toyota RAV4 I would recommend the Curt Class III hitch part # C13149. This is a 2 inch hitch with plenty of capacity that would work well for towing. If you have a ball mount designed for a 2 inch hitch already then that would work well with this hitch. But you may need a different rise/drop ball mount to tow your trailer level. Check out the help article I attached that details how to determine the correct rise/drop you would need. We carry two trailer wiring harnesses...
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  • Where Does Curt Trailer Wiring Harness Install on a 2014 Toyota RAV4
  • The T-connectors are the ones on the harness # C56166 since they Tee into the vehicle wiring. Find the wiring to the tail lights on your 2014 Toyota RAV4. There will be a connector that you will unplug. Then plug the forward connector into the matching input on the harness, and the output from the harness back into the connector that leads to the tail light. We do not have a video for that particular harness but we do have one on another harness that fits your RAV4 which I have linked...
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  • Trailer Hitch Recommendation for 2013 Toyota Avalon
  • The Draw-Tite Class II 1-1/4-Inch Trailer Hitch # 36540 is a compatible fit for your 2013 Toyota Avalon. While the receiver tube will be visible beneath your bumper, it should not protrude. There is no welding required to install this item, but some drilling may be required as well as the temporary lowering of the exhaust. I have provided links to the installation instructions for the hitch. I have also included a link to our FAQ page on trailer hitches. If you need trailer wiring...
    view full answer...

  • Purpose of Center Bracket on Hidden Hitch Class III Trailer Hitch 87697 for 2014 Toyota Rav4
  • You are exactly correct that the flat bracket included on the Hidden Hitch Class III Trailer Hitch # 87631 is intended to allow convenient mounting of the connector for a trailer wiring harness. This feature can save the added expense of an add-on bracket. This bracket is intended to accept a trailer connector like the Hopkins # 37185 that provides both 7-way and 4-pole trailer connections - great if you will tow multiple trailers with differing electrical wiring. For reference, please...
    view full answer...

  • Trailer Hitch Recommendation for a 2016 Toyota RAV4
  • The Curt hitch part # C13149 that you referenced has been confirmed as a fit for your 2016 Toyota RAV4 so it would be a great choice. I attached an install video for you to check out as well. If you wanted to do some towing you might be interested in etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise or 4 inch drop. It also includes a 1-7/8 inch ball, 2 inch ball, hitch pin with clip, and a storage bag. If...
    view full answer...

  • Recommended Trailer Wiring Harness for 2014 Toyota Rav 4
  • Although the Curt # C56166 and the Tow Ready # 118578 perform the same function and would install in the same manner, the Tow Ready model has a slightly higher amperage rating and is a bit less expensive. The higher rating wouldn't really matter unless your trailer has many lamps on it, but there's no good reason not to go with the lesser priced Tow Ready unit. If you click the provided links, you can see the installation details and an install video.
    view full answer...

  • Parts Needed to Equip 2015 Toyota RAV4 for Towing Rented Utility Trailer
  • For towing you will want to install a 2-inch Class III hitch on your 2015 Toyota RAV4. I suggest Curt # C13149 along with ball mount # C45030 and 2-inch hitch ball # 63845. For a wiring harness for the trailer's lights you can use kit # C56166 which will plug in at your taillights and provide protection for the car's own internal wiring in the event of a short on the rented trailer. Installation videos for the hitch and harness and some helpful articles are linked for you to assist your...
    view full answer...

  • Routing the Power Wire of a Trailer Wiring Harness in a 2013 Toyota Rav4 Options
  • I have a solution that doesn't involve routing a power wire under your 2013 Toyota RAV4, but I cannot recommend you route the power wire to an accessory power circuit like a cigarette lighter since that would void the warranty of the harness. You can route the power wire through the interior of the vehicle and then through a hole in the firewall to get it out into the engine compartment so that it can be ran to the vehicle's battery. I attached an FAQ that covers routing power wires for...
    view full answer...

  • Video for Installing Trailer Wiring Harness on a 2013 Toyota RAV4
  • I have included a link to a video that shows installation of trailer wiring harness # 118578. It installs the same way as Curt harness # C56166 on your 2013 Toyota RAV4. Both harnesses just plug in line with the vehicle tail light wiring. A direct connection to the battery is required for both as well. I have also included a link to our help article to the right with tips on routing the power wire.
    view full answer...

  • Trailer Hitch Receiver Recommendation for 2013 Toyota RAV4
  • We do offer a few different trailer hitch receivers for the 2013 Toyota RAV4, one being the Class II hitch, part # C12108, that you mentioned. I have included a link to all of these options for you. My personal recommendation would be to go with a Class III hitch, like the Curt, # C13149, because it offers the 2 inch receiver opening. A 2 inch hitch typically gives more options by being compatible with more hitch mounted accessories. Just a couple of things to keep in mind. All of...
    view full answer...

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