Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector
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1989 Mazda 626
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1989 Mazda 626
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Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into OEM tow package wiring harness - no cutting, splicing or tapping required.
Features:
Specs:
Installation
This custom-fit T-connector plugs into your vehicle's wiring harness, which is located behind the center of your rear bumper.
Once installation is complete, the 4-way connector will be stowed beneath your vehicle, near the trailer hitch. A mounting bracket (sold separately) is recommended to keep the connector secure.
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.
Customer Satisfaction Score:
95% were satisfied with this product
5% of customers were not satisfied
Ratings & Reviews
Inexpensive harness that plugged right in. Perfect!!!
Factory style. Plug and play.
Easier than me making one.
Perfect fit. Quick and easy install
Great product, easy instal and good directions. Found all the parts I needed easily and delivery was fast.
Perfect fit! I was able to install the hitch by myself, in my garage. Only a wrench and socket needed.
Item arrived fast perfect fitment thank you
Direct fit for a 2021 Chevy Blazer premiere installed a hitch, and this wiring harness at the same time. I figured since the bumper was off, I would be able to install this quick and easy and it was. Just had to take the dust and weather cover off existing plug that was behind the driver side, bumper and plug this wiring harness right in. As you can see from pictures pretty straightforward install.
Mounted up nice. No issues encountered. 15 minute job. Great product.
5 star on quality, 4 star on instructions. I’m pretty good with mechanical things. This was not difficult to install. The access holes provided were like 7/8” but bolt heads are 1-1/16” so needed to enlarge those holes using a 1/2” drill bit. Instructions said to disconnect muffler but I did not and was able to get it in place. Need to remove four screws, two on each side from center, on the bumper cover and pull back to install. Used jack stands to assist. Did not need to trim any of the cover. Fishing lines worked great too; just put a good kink in them to pass easy to the access hole. Did have to trim two bolts projecting from the bumper bracket and then it fit great, all bolts lined up. Adapter for lights was perfect also, bit hard to reach and disconnect cover though. Overall very happy with this product.
Works as intended. easy to install.
Worked great, easy to install and fast shipping
The trailer hitch is beefy. I think when the vehicle is no more, that hitch will still survive! My son and I installed the hitch in our driveway. Getting the most forward bolts fished into the frame was difficult. Also, the bolts will try and retract up into the frame while you put the nuts on. The bolts can be held from the side with a flat blade screwdriver while nuts are threaded on, stopping them from retracting. In the end, all fit well.
There's a trick to removing the vehicle trailer electrical connector protective cap that's not well covered in the video. The red plastic retainer clip can be released by pushing on the red tab with the v slot that is visible from the cap side using a small flat
blade screwdriver.
Installers in my area wanted $140 - $150 to put the hitch on. This was too much for me, so I did it myself - even though I'm 71 with bad knees. My son's help made it possible.
Awesome company the trailer hitch fits like a glove and hides behind bumper perfect and clean easy install.
Fit right on my Envision below the bumber looks great. and wire harness went on no problem.
I just received the hitch and wiring plug have not had time to get it installed. It looks great and will look good on my wife’s suv. We are putting this hitch on her suv to haul our electric bikes we have a bike rack. I will make another post when I get the hitch installed I only gave it four stars because we don’t have it installed.
Was fairly easy to install. Video on YouTube very helpful.
I received the item quickly. I especially appreciate the instructions on installation
This was exactly what I needed. I had talked to several other companies and nobody could help me. Josh was able to answer all of my questions and he knew exactly what I was talking about and what I needed. He was very knowledgeable about all of the curt products. I will never go anywhere else ahain for towing products. Thanks Again
Easy to install. Wish there was a defined location to tie off the strain relief for the trailer wire harness. Ended up zip tying to a wire loom and then looped it around the hitch to keep it from dragging.
It made wiring simple. The biggest issue was finding the factory plug on my 2022 Buick Envision. It is way up high behind the bumper. It took longer to find it then to install the harness.
The wiring harness fit perfectly on the vehicle’s male connector and was of sufficient length to be mounted and routed properly to a point that did not leave excess wiring dangling. The trailer lights function with no issues. I would highly recommend this product to anyone seeking a similar device for their application.
Hitch went up in place just like the video said.It took me 2 hour to do by myself with no problems. I did wiring harness first and that was easy.Great product and great instructions.
The experience with etrailer was outstanding. I was getting ready to cut wires, splice them together and shrink wrap my trailer plug. I found etrailer on the internet. Realized I could purchase a harness that just plugs into my vehicle. Kaitlynn responded to me the same day I ordered a harness. She also shared shipping date and delivery time. Outstanding personnel service. I just installed it and it only took minutes. Thank you etrailer.
I looked at the installation video before ordering so that I could confirm whether or not the car had a factory preinstalled plug. Mine did and the harness plugged perfectly into it. Everything was included that was needed to secure the harness to the car, took about 10 minutes to install.
Kate F.
6/5/2026
Thanks for your review, Wally! We're glad the installation video helped you confirm your vehicle had the factory connector and that the harness plugged right in. It sounds like everything went smoothly, and your installation looks great. Thanks for including the photo, too! What do you plan on towing with the new set-up?
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time.
Gwendolyn Y.
6/17/2025
I agree with you, Raymond, it looks great! What are you going to be towing?