Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way and 4-Pole Flat Connectors
Item # C55774
Retail:$53.16
Our Price: $32.90
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Confirmed to Fit
2017 Ford F-250 Super Duty
with factory 7-Way
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2017 Ford F-250 Super Duty - Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way and 4-Pole Flat Connectors
- Trailer Hitch Wiring
- 4 Flat
- 7 Round - Blade
- No Converter
- CURT
Quickly and easily install a 7-way and a 4-way trailer connector on your GMC Canyon with this custom harness. Connector plugs directly into OEM tow package wiring harness - no cutting, splicing or tapping required.
Features:
- Provides both a 7-way RV-style and a 4-pole flat trailer connector at the back of your Ford F-250 Super Duty to power your trailer's signal lights
- Designed for use with a factory tow package
- Compatible with 5-pole and 6-pole adapters (sold separately)
- Connects quickly and easily - no cutting or splicing of wires
- Locate connection point behind rear bumper
- Plug in connector
- Includes mounting bracket and hardware
- Comes with protective covers for connectors
- Assembled in the USA
- Limited 1-year warranty
Installation
This custom-fit connector plugs into your Ford F-250 Super Duty's factory tow package wiring harness, which is located behind the rear bumper, on the driver's side.
Once installation is complete, the connectors will be stowed beneath your Ford F-250 Super Duty, near the trailer hitch. A mounting bracket is included to keep the connectors secure.
It is recommended that you use a small amount of grease on all electrical connections - the plug on your automobile and the 7-pole and 4-pole connectors - to help prevent corrosion.
55774 Curt T-Connector - OE Multi-Socket Upgrade
Installation Details
California residents: click here
Customer Satisfaction Score:
93% were satisfied with this product
7% of customers were not satisfied
- Wrong item was ordered
- etrailer mistake
- Product did not meet expectations
Customer Reviews
Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way and 4-Pole Flat Connectors - C55774
Average Customer Rating: 4.7 out of 5 stars (610 Customer Reviews)
Quickly and easily install a 7-way and a 4-way trailer connector on your vehicle with this custom harness. Connector plugs directly into OEM tow package wiring harness - no cutting, splicing or tapping required.by: Peter 05/06/2024
The Curt T-Connector vehicle wiring harness fit as recommended by the etrailer.com customer service representative. I wanted to be sure the electrical connector package would fit my Draw-Tite hitch, and it did. The instructions were straightforward, although there were no screws or nuts to attach the metal bracket to the hitch. I had to supply those. I believe they should have been part of the kit. The installation video on the etrailer.com site was very helpful.
by: Charles 05/14/2024
Chevrolet TrailBlazer
This connector worked perfectly on my '06 Chevy Trailblazer. It was very easy to swap it out with my original connector, and the addition of the 4-pole plug makes it easy to eliminate the 7 to 4 pin adapter.
by: Clukero04/04/2024
2007 Chevrolet Silverado Classic
Excellent fit, oversized spare tire still fit underneath (285/70r17).
by: Tim R01/01/2024
2010 Chevrolet Silverado
Very easy, plugged right into the uscar connector, drilled 2 holes for the bracket, done
by: Andrew W. 10/26/2018
2003 GMC Yukon XL
I am having a problem with the install of the three Curt trailer components I purchased. I intentionally bought all of the same brand assuming that they would work together. The problem is that the Curt wiring harness (part# C55774) is too long and rigid. When the 7-pin connector is installed in the bracket that comes with it, it measure 5 inches until the black wire protective sleeve bends (to go under the hitch receiver frame).
The no-drill bracket (part# C57202) is supposed to attach the harness bracket to the hitch. But it is only 6.5" long, and the hitch tube is 3" wide. So with the bracket attached to the hitch, there is only 3.5" of space left to mount the harness bracket so that the screw holes line up.
I am disappointed that this is the case, especially as I called etrailer to check that the parts I was ordering would work together.
It looks like I will have to discard C57202 and drill two holes into the bottom of the hitch and mount the harness bracket directly. This is what I wanted to avoid - having to drill holes.
by: Mike04/11/2018
2015 Jeep Grand Cherokee
Super easy, very nice! Great engineering, couldn’t have been any easier! The girls at etrailer are super friendly and very helpful! Great prices and quick shipping, too!!
Mike
4/13/2019
Great. No problems.
by: David02/25/2024
2003 Mercury Mountaineer
This was supposed to be a plug in installation for my 2003 Mercury Mountaineer. No it wasn't. Completely different connector, and the wiring was 2 feet too short. Was able to use it after a bit of clipping and splicing.
by: Greg 04/20/2023
2006 Chevrolet Silverado
Very good, fit perfectly
Greg
4/21/2024
It has been working great, holding up well,the same as the day I purchased it. Great product
Bud M.
5/15/2024
@Greg
Great to hear. Thank you for the update.
Greg
5/15/2024
It has been great works exactly as it should
by: Martin04/22/2024
Product I ordered had an inaccurate description. Contacted customer service to return they would not send return shipping label so since the return shipping would have costed more than the part I threw it in the trash and ordered the part needed from another supplier. Needless to say I will not be ordering anything again.
by: Jim 05/04/2024
2017 GMC Acadia Limited
Working well. Have used the four prong plug only but am glad to have the 7 way available if needed.
by: Dylan04/10/2021
Perfect fit. My truck was not equipped with a tow package so I was a little worried it wouldn’t fit. The wiring and plug were already there with a cap on it to seal it from dirt/water. Took the cap off and this harness snapped right in place. Also installed an etrailer hitch and new bumper. Very happy with the products and the installer tools and information provided by etrailer.com.
by: Todd02/26/2024
2017 Ford Explorer
Always accurate parts and information
by: Randy 05/15/2024
great product oem quality
by: Robert 04/10/2024
Perfect fit, works well
by: Danny07/31/2020
Harness was easy to install. The truck came prewired. It just needed the adapter. We dremeled our the back of the bumper (2019 Titan’s have the cut our outlined on the back side already). We had to dremel 2 side prices off the harness, but it slide right now. Then we drilled through the plastics bumper cover and the metal on the bumper and bolted the bracket to the bumper.
The 4 point is just fished between the license plate and the bumper. It was easy and it now looks factory. Very happy with how it came out! Install was a cinch!
by: John08/24/2020
2018 Nissan Titan
I have a 2018 Nissan Titan, and while the connector was a perfect fit for connectivity to the factory connector. The Curt T-Connector wiring harness was about 6 inches short from connecting to the factory harness when mounted on the trailer hitch bracket. So, I was forced to mount it on the opposite side by drilling holes in bumper.
by: Brett C04/15/2024
2024 Ford Bronco
Great product and very helpful staff! Thank you!!
by: Matthew11/30/2017
If you have multiple trailers that either use a 4-way flat or 7-pin round connector and get tried of having to use an adapter go with this setup. I've had one on my other truck for a couple years and no problems with 'em thus far. You can technically use the old existing mount on the receiver hitch itself but the 4-way will dangle unless you ziptie it up.
by: Kent R.06/23/2017
2002 Ford Excursion
My 2002 Ford Excursion 7.3L diesel had the original factory hitch and wiring harness. The quality and heft of the Curt T-Connector is impressive. I bet I get years of use without problems.
by: Caro H06/01/2021
Great product. Installed on my 2018 Jeep GC. Because of dual 4 pin and 7 pin connector I don’t need an adaptor when swapping out trailers/camper. Clean look to it as well.
by: Michael 05/03/2023
2023 Honda Passport
Bought this because of the split 4 pin and 7 pin connectors. I’ve had so many 7 pin to 4 pin adaptors and would forget that I let my son or son in-law use it and had to buy another one when I needed it. This will stop me from the need to buy another adaptor, good for me not good for my son and son in-law when they come over to borrow the trailer. LOL, who am I kidding I’ll still go with them to the store and buy another one.
by: David 02/21/2024
2007 Ford F-150
Great product & customer service
by: Vernon 07/17/2023
Great fitment. Had a little difficulty getting to the right version of this but the amazing customer service at ETrailer helped me get to the correct one. Thank y’all! I love any business that’s not named after a rain forrest!
by: Rhonda04/17/2023
The actual trailer hitch was fine but the wiring kit was not the right kind. When I called to get a return authorization I was told that more than one half the cost of wiring kit will be deducted from my return for postage. I have never had to pay for returns to any company before. I will not be recommending your company
by: R G02/17/2024
Plugged right in and makes for a professional look
25
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Show More Reviews
See what our Experts say about this CURT Custom Fit Vehicle Wiring
- Installing A 7-Way On A 2003 Ford F-350 Super Duty Hey Edward, The factory connector for a 2003 Ford F-350 7-way socket should be round so it's likely that you're looking at a different wire harness. Could you send me some pictures and I can take a look? It's also possible that your F-350 wasn't setup with a factory wire harness and you'll instead need to first install a 4-pole connector # C56032 and then install a hardwired 7-way socket # ETBC7 instead of the factory harness plug-in version # C55774 that you ordered.
view full answer... - Easiest Trailer Wiring Solution for 2018 Jeep Grand Cherokee with OEM Wiring PresentIf it was my vehicle I would go with the factory tow package 7-way and 4-way wiring kit part # C55774 that you referenced since you have the connector present for it already. There's a good chance the wiring is already active too but at worst a trip to a dealer to have them reflash the computer would be super easy as well. The T-one style kits aren't terrible but if you have the wiring already present the route mentioned would be super easy and gives you both styles of trailer wiring.
view full answer... - Correct Wiring Harness for a 2004 Ford F-150 LariatThe Curt T-connector vehicle wiring harness for factory tow package 7 way and 4 pole flat connectors # C55774 is a confirmed replacement and fit for your Ford F-150 Lariat. It connects quickly and easily with no cutting or splicing of wires. The mounting bracket and hardware are included. It does feature the round plug that your 2004 F-150 has. This custom-fit connector plugs into your vehicle's factory tow package wiring harness, which is located behind the rear bumper, on the driver's...
view full answer... - Which Class IV Hitch Do I Need for a 2019 Ram 1500 ClassicYou are correct that there are differences between the frames on the 2019 Ram 1500 and the Ram 1500 Classic. The correct Draw-Tite Class IV hitch for the 2019 Ram 1500 Classic is the Draw-Tite Ultra Frame Trailer Hitch Receiver w/ Cast Center - Custom Fit - Class V - 2" # 41948. This is a custom fit hitch, so no drilling will be required during installation. If you also need to install trailer wiring on your 2019 Ram 1500 Classic, I recommend using the Curt T-Connector Vehicle Wiring...
view full answer... - Wiring Kit Recommendation for In-Bed 7-Way Connection on 2019 Ford F-150You could potentially use the Curt T-Connector # C55774 for a 7-Way connector in the bed of your 2019 Ford F-150 but this wiring kit comes with the 4-Way as well so for just the 7-Way socket you'll want the Pollak # PK11893 instead. If you're needing a new wiring kit that comes with the wiring and the 7-Way then the kit # C57008 will do the trick. Attached are some videos for you to check out.
view full answer... - How to Know If Vehicle Wiring Will Be Overloaded By Connected Trailer LightsIf you were using Curt T-Connector # C55774 and wanted to make connections at both the 4-pole and 7-way at the same time you could add the current draw of the two connected trailers/devices (like a tailgate light strip) to know whether this would exceed the rating of the circuits. The online manual for your 2015 F-250 indicates multiple separate fused circuits for the various trailer light functions. Fuse 10: 40-Amp for Trailer Tow Fuse 22: 30-Amp for Trailer Brake Controller Fuse 26:...
view full answer... - 4-Pole Wiring for 2018 Ford F-150We have 4-pole wiring harnesses for the 2018 Ford F-150 such as Curt # C56110 which is a direct OEM replacement. This item and the similar Hopkins part # HM11140735 plugs in at the rear of the truck with a rectangular plug. Please refer to the linked photo. If instead your truck has a round U.S Car type connector you can use Curt # C55774 which includes both 4-pole and 7-way type connectors on one product.
view full answer...
- 7-Way And 4-Way Connector For A 2018 Toyota Tacoma TRD SportI do have a solution for your 2018 Toyota Tacoma TRD Sport, depending on what you're looking to do. The Curt 5th Wheel/Gooseneck Custom Wiring Harness w/ 7-Pole Connector # C56070 is designed to work with an existing factory 7-way and give you a second 7-way in the truck bed. Your photo looks like you have the round USCAR connector and I confirmed with Curt that the best solution for you if having both 4-Way and 7-Way connectors is the goal would be # C55774. Included is a video resource...
view full answer...
- Replacement 7-Way Trailer Connector for a 2005 Chevy TrailblazerYour 2005 Chevy Trailblazer should have come with a factory 7-Way trailer connector. If it is not present, you can use # PK11916 as a replacement. There is also a replacement that will add a 7-Way and a 4-Way, # C55774.
view full answer... - Which 7 way Wiring Harness Do I Need for a 2018 Ford Transit T-350I'm not sure what that plug is for exactly, but it's not anything related to the towing wiring, so that's not the wiring that you're looking for. If you don't have the factory tow package on your vehicle, you're not going to have a way to plug something like the Curt # C55774 (which is the correct harness for the T350 with the factory towing package)- this would utilize a US car connector plug to connect a 7 way. With that said, the Tekonsha # 22114 wiring harness is the correct harness...
view full answer...
- Can 7-Way and 4-Way Both Install on 2016 Nissan FrontierYou can install both a 4 and 7-way in place of the 7-way kit part # 118281 that fits your 2016 Nissan Frontier. For that you would also need to go with the part # C55774 and install it instead of the included 7-way of the # 118281 and you'd be set.
view full answer... - Replacement 7-Way and 4-Way for Class C 2001 Jayco Eagle RV on a Ford ChassisYes, the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way and 4-Pole Flat Connectors # C55774 is the correct 7-way and 4-way connector you need for your 2001 Jayco Eagle RV built on a Ford chassis.
view full answer... - Parts Needed to Add 4-Way to Motorhome that has 7-Way at Rear of itIf your 7-way has a round connector at the back that you could remove you could use the part # C55774 as a replacement for it and you'd have a 4-way separately that you could use for your magnetic lights. Or if you have a 7-way that does not have a connector behind it you could hardwire in one with the # 18252.
view full answer... - Dimensions for Curt Trailer Hitch Receiver # C15410 For 2005 Ford F-350 With Utility BedThe Curt Trailer Hitch Receiver # C15410 has a measurement of 12-1/2" from the face of the receiver to the bolt hole nearest the receiver. I have attached a picture showing the dimensions for the bolt holes as well as the receiver distance. The top of the cross tube to the frame is 5-5/16". The Curt T-Connector Vehicle Wiring Harness # C55774 will allow you to plug into the factory connection on your 2005 Ford F-350 that came with the factory tow harness. This features a 7-way blade connection...
view full answer...
- Only Right Turn Signal Works on Factory 7-Way Trailer Connector on 2004 Nissan Pathfinder ArmadaUsing your circuit tester, test the wires in the harness behind the 7-Way. That way you can determine if the power is making it that far which would indicate a problem in the connector itself. If there is no power there as well then it still could be fuses or relays. On some Nissan vehicles there is another relay that is in the in-cab fuse box. Use the owners manual to locate all of the fuses/relays related to the tow package and make sure they are present and working. If that one relay...
view full answer... - Is the 7-Way for a 2010 Ford F-250 Different Than One for a 2011 Ford Ford F-250Most newer vehicles utilize what is called a USCAR connector which is essentially an industry standard pinout for trailer connectors. Therefore, so long as you have the USCAR connector you can use pretty much any 7-way. This will be the case for a 2010 Ford F-250 and a 2011 Ford Ford F-250. For example, a bumper 7-way like the Curt T-Connector Vehicle Wiring Harness part # C55774 will fit both a 2010 Ford F-250 and a 2011 Ford Ford F-250 as will an in-bed 7-way like the Curt 5th Wheel/Gooseneck...
view full answer... - Will Curt C13900 Fit my 2001 Chevy SilveradoWhile the Curt Trailer Hitch Receiver part # C13900 Would fit your Silverado it would require a lot of modifications be made to the truck by drilling into the frame. Instead use the etrailer Trailer Hitch Receiver part # e98849 which is designed specifically for your 2001 Silverado and will not require any drilling. It is also more economical and has a higher weight capacity. Check your owner's manual to ensure that you do not exceed your particular trucks capacity. If for some reason...
view full answer... - 4-Way Extension Recommendation for Rear of Ford F-250 For Towing Second TrailerThe Curt T-Connector part # C55774 that you referenced would be the first component you'd want. This will give you a 7-way and 4-way active at the rear of your truck. This will allow you to run a 4-way extension from the truck to the second trailer to activate the turn signals. For an extension you could use the part # A40W42B which is a 40 foot section of 4-way wiring that includes a male 4-way and then to the other end you could attach the part # HM48030 and you'd be set.
view full answer... - 7-Way Wiring Harness for 16-Foot TrailerWe can help you with a replacement 7-way trailer harness for your 16-foot trailer. All such items are shown on the linked page. These include plugs-only, such as # PK12706, which uses your trailer's existing wiring; pigtail plugs like # 54006-059 that are available in many lengths; and also complete units like # HS381-9000 which is a 7-way plug with cable and wiring junction box. If you are referring to a replacement 7-way socket for your 2006 Nissan Titan then you can use # C55774 from Curt.
view full answer... - Replacement Combination 4-Pole/7-Way Vehicle Trailer Socket for 2005 Ford F-150We have a replacement combination 4-pole/7-way vehicle socket for your F-150, part # HM40975 from Hopkins. This uses the standard round U.S. Car type connector on the rear to connect to the vehicle and it provides both 4-pole and 7-way types of trailer connector.
view full answer... - Installing Curt T-Connector 7-Way Mounting Bracket on Jeep Grand Cherokee To mount the Curt T-Connector Wiring Harness # C55774 on your Jeep Grand Cherokee using the included black square bracket I actually recommend adding the No-Drill Bracket # C57202. This will allow for the safest and easiest installation right to the trailer hitch crosstube without having to drill into anything. The No-Drill Bracket will secure to the hitch's crosstube with the included hose clamp to provide a tab with existing mounting holes to which you can attach the 7-Way bracket for...
view full answer... - Recommended Replacement Trailer Connector for 2005 Chevy Silverado 2500The Hopkins 7- and 4-Pole Trailer Connector Socket w/ Mounting Bracket # HM40975 is a confirmed fit for your 2005 Silverado 2500. There are also other style options compatible with your truck like the Reese Multi-Plug Wiring Harness # 74682, the Hopkins # 30955, or the Curt # C55774.
view full answer... - Towing Setup for a 2012 RAM 1500I would be happy to help you set up your 2012 Ram 1500 to haul your excavator. I recommend the Curt Trailer Hitch Receiver item # 14374 this will replace your factory hitch. This hitch has more than enough capacity to handle both your trailer and excavator's combined 6,000 lbs weight. You will always want to defer to your lowest rated component's weight capacity. If you need to replace your 7-way connector the Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way and...
view full answer... - Recommended Hitch and Wiring For 2015 Jeep Grand Cherokee LimitedI took a look at the installation instructions for the Curt Trailer Hitch Receiver - Multi Fit - Class III - 2" part # C13900 and although it may fit the 2015 Jeep Grand Cherokee it will take some drilling to get it to fit. The hitch adjusts to fit the frame but if the holes don't line up, the installation will require drilling into the frame. For that reason, I recommend to use Curt Class III Round Tube Receiver Hitch part # C13182 which is a fit for all the variations of the 2015 Grand...
view full answer...
Do you have a question about this Custom Fit Vehicle Wiring?
Info for this part was:
Expert Research:
Mike L
Expert Research:
Jameson C
Expert Research:
Adam R
Expert Research:
Jeffrey L
Video by:
Andrew K
Video by:
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Video by:
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Video by:
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Written by:
Lindsey S
Installed by:
Jeff D
Video Edited:
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Video Edited:
Chris R
Updated by:
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Updated by:
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Updated by:
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Updated by:
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Heather A.
10/26/2018
The 7-way bracket that comes with the wiring harness part # C55774 is designed to be installed with the wiring harness bracket hanging below the no drill bracket part # C57202. Since you are worried about the loose wiring I would recommend using some wire loom such as part # 459075-1 to protect your wiring and zip tie any slack with zip ties part # DW05726-25. I know this is not the option you wanted but I feel it is better than drilling into the hitch.
Helpful Links
Accessories-and-Parts/Curt/C57202.html
Custom-Fit-Vehicle-Wiring/Curt/C55774.html
Tools/Deka/DW05726-25.html
Tools/Spectro/459075-1.html