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Quickly and easily install a 4-way trailer connector on your Volvo XC90 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.
Features:
Specs:
Installation
This custom-fit T-connector plugs into your vehicle's wiring harness, which is located behind the interior trim panels in your rear cargo area. Once you've plugged in the T-connector, locate the power cable stud on the driver's side. Then connect the yellow lead with the ring terminal on the end to the stud.
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.
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 vehicle'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 vehicle 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.
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.
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Average Customer Rating: 4.8 out of 5 stars (75 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.Good product, straight forward installation. I think it is a little strange that plug is supposed to be dangled out of the rear hatch when in use so I purchased the "Hopkins Endurance Multi-Tow 7-, 5- and 4-Way Flat Trailer Connector - Vehicle End - Ergonomic Design - HM48470." I cut the 4-pole flat off this harness, feed the wires through a drain plug in the body panel and attached the wire ends. The connector interfaces very well with my XC90 and there is still no drilling or advanced skills needed.
Great product, super easy to install in my 2006 Volvo XC 90. Everything is plug and play, even the power tap which was located right in the fuse box was quick and simple. For my install I cut the 4-Pole Flat connector off and fed the wire thru a rubber plug in my trunk to the Hopkins Trailer Socket that I also purchased from etrailer. This is my second hitch setup I've purchased, all the information you need is readily available, products are always in stock, and the shipping is quick.
Worked perfectly and the directions were easy to follow
It has worked perfectly.
Perfect fit, works flawlessly. Decently easy install (some wire fishing). Everything plugs right in.
The harness was easy to install after watching video.
The trailer hitch fit perfectly a little difficult for one person but I did it.
Everything worked perfectly.
Directions were easy to follow and works as it should.
Wiring harness perfect fit on my XC90
I purchased the wiring harness for a 2007 Volvo XC90 about a year ago and it has still been going strong. I don't leave it plugged in all the time as I sometimes get an error message saying that a brake light is out, but I don't know if that's the harness or the car. It is very easy to reconnect when I do tow - about 6 times a year. Simple installation, connections fit tightly and it looks pretty weather resistant.
Rachael H.
7/25/2017
Thanks for the info Dave. This is a common problem with vehicles that have the trailer lamp out detection monitoring system. The European car companies were leading the way with this technologies. You can install load resistors like P230004A-2 to prevent the light out sensor issue. If you dont use it that often you may not be too worried about this.
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Great! It was really easy for my wife to install and worked perfectly for us. We would just put it in the space under the trunk when not in use.
This wiring harness makes a professional installation easy, no fuss, no mess, and it works fine. The installation videos make the first time install seem routine and are very helpful. I do plan on adding extra clearance lights on my trailer's fenders, however all LED now, I do not anticipate any decay in performance. One thing I do not particularly like, nor am accustomed to is the "dangling" harness hung out the hatch vs. a fixed covered jack on the frame or hitch that the wires from the trailers can routinely plug into. While it is protected and out of the weather/salts when not in use (the great majority of time), and can easily be kept out of water when at a boat ramp, when setting up, I forget to drag the car end of the wiring harness out from under the Volvo's cargo bay cover, (sometimes already loaded with gear). I may end up ordering a stationary flat four pole jack to mount outside. I'll get used to it, yet know it's a great part you'd have no regrets ordering.
This kit made wiring up the trailer lights easy. Clear and concise instructions. Very happy with purchase.
Wiring was relatively easy to install once I found the appropriate locations to connect it. I am not very handy, I just have a bit of a sense for wiring (ie. I can install a light fixture in an existing electrical box and that's about it) and I was able to figure it out on my own. It is still working perfectly to connect my trailer wiring to my vehicle (2011 Volvo XC90) wiring one year later!
The video instructions on etrailer helped a lot!
This kit fit into the 2008 XC90 nicely. The only thing that I would suggest improvement on is to revise the design to support running the 4 pin connector thru the rubber grommet in the bottom of the body area where the battery overflow tube exits to under the vehicle and equip the kit to provide for mounting the 4 pin connector to the Hidden Hitch, Trailer Hitch Receiver, 2", #87810 which I ordered this harness with. Running it out the tailgate when in use seems a bit hokey.
Product delivered promptly, everything in order, followed the video install directions . My only concern was the red box attached to the power wire was not in the video & not mentioned in the written instructions. I figured it out & the trailer lights are working A-Ok!
Laura E.
6/14/2017
Thanks for bringing this to our attention, Terry. The red box attached to the power wire is the fuse holder.
Ordered the Curt hitch and T-tap wiring harness for the 2005 Volvo xc90. Everything shipped quickly and came packaged together. I appreciated the emails telling me when teh package shipped and tracking information. The hitch went in smoothly and without and problems. All hardware was included and the holes lined up perfectly. The wiring harness could not have been easier. simply unplug the existing light connections and snap the new harness inline. A cordless drill is a must to secure the ground screw, even though it is self tapping. The kit included everything I needed, including wire zip ties.
I would recommend etrailer.com to anyone looking for a hitch related product; good product and great online videos to walk you through an install.
wiring harness fit nicely. It was a pain getting to some of the connectors, but everything hooked together and had just enough length of wire to run it down to the hitch. Worked on the first try. Very pleased.
I installed the hitch on my Volvo XC90 by myself in less than one hour and had the electrical wiring harness finished in half that time. The videos on how the install both were excellent. The Volvo dealer wanted $1000 to add a hitch to my car. I figured I saved $750 dollars with etrailer.com. So glad a friend told me about you guys.
Product was fairly easy to install even though directions are not exactly accurate. In my 2012 XC90 I needed to really reach for the tail light harness (to the side of the 3rd row seatbelt and behind the plastic). Accessing the harness was the hardest part for us!
Both hitch and wiring harness were easy to install and work perfectly.
Very quick and easy to install. I had this kit installed and finished in 15 minutes. And in my line of work, the faster/simple the solution, the better. Highly recommend this kit for anyone who needs an easy/proper installed four flat trailer wiring harness.
Great product and great fit. Amazingly easy to install -- plug and play. I know nothing about electrical stuff so this worked great and easy for me. I have not tested it fully yet, but installation was surprisingly easy.
Everything still is perfect in fact actually pulling the trailer out of storage to start getting it spring ready.
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Mark
9/6/2023
Perfectly