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

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

Item # C56161
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Custom Fit Vehicle Wiring

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Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector 4 Flat C56161
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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 existing wiring - no cutting, splicing or tapping required. Call 800-298-8924 to order Curt custom fit vehicle wiring part number C56161 or order online at etrailer.com. Free expert support on all Curt products. Guaranteed Lowest Price and Fastest Shipping for Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (150)
  • Q & A (19)
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Curt Custom Fit Vehicle Wiring - C56161

  • Custom Fit
  • Trailer Hitch Wiring
  • Curt
  • 4 Flat
  • Powered Converter

Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into existing wiring - no cutting, splicing or tapping required.


Features:

  • Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights
    • Compatible with 5-pole, 6-pole and 7-pole adapters (sold separately)
  • Includes a tail light converter to ensure that your vehicle's wiring matches that of your trailer
  • 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
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection in rear cargo area
    • Plug in T-connector
  • Comes with dust cap for 4-way flat connector
  • Limited 1-year warranty


Specs:

  • Maximum amperage:
    • Stop/turn lights: 5 amps per circuit
    • Tail lights: 5 amps per circuit
  • Limited 1-year warranty


Installation

This custom-fit T-connector plugs into your vehicle's electrical junction box, which is located in your rear cargo area, beneath the trim panel on the passenger's side


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.


Tail Light Converter with Surface-Mount Technology

A tail light converter is built into this T-connector. 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.


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.



56161 CURT T-Connector - 4 Wire

Installation Details C56161 Installation instructions

This Product Fits The Following Vehicles



California residents: click here



Customer Reviews

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector - C56161

Average Customer Rating:  4.9 out of 5 stars   (149 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 - no cutting, splicing or tapping required.

- C56161
by:
2009 Honda Odyssey

I love your website and doing business with you was about as good as any I’ve done anywhere. Plenty of helpful info, easy to search and navigate, checkout was straightforward. I sure wish other places were this helpful and easy (and fast!) Maybe you could market your platform and concepts... Best of all, the product arrived fast, in good condition, and installed exactly as described. Oh yeah, love the detail and variety of the videos too! Thanks again! 599211


Comments
Works great after a year and a cross country move, no trouble at all. Finally figured out why the pigtail is so long...it’s supposed to be routed under the trunk threshold trim piece so you can stow the pigtail in the tire jack compartment on the left side of the van. Dunno how I missed that in the instructional...d’oh.
Ian - 01/22/2020

64669

- C56161
by:

Always purchase are trailer hitch's etrailer.com for are customers! 671483



- C56161
by:
2005 Honda Odyssey

This is a great hitch! It's well made and bolted right onto my Honda Odyssey. I'm using my hitch to tow a small trailer for getting rid of yard debris. Now I don't have to go out and by a truck. This was very easy to install and it came with everything needed! 142126



- C56161
by:
2008 Honda Odyssey

Good deal for a 4 pin connector that comes assembled to just plugs into the open connector on my 2008 Honda Odyssey. Online videos are super with helping get to the connector, grounding, panel removal and grounding. No need to hassle with finding wires in the van that require tapping. Plug it in, add a fuse & you're good to go. 560661



- C56161
by:

941418



- C56161
by:

Great product and videos were super helpful. Wired this myself with no trouble. Thanks for an excellent shopping experience and customer support! 903449



- C56161
by:

We have been using this product for a year now with no problems - we are very pleased with our purchase, and have had a positive experience with etrailer 902883



- C56161
by:
2010 Honda Odyssey

Easy plug in and worked just fine 862993



- C56161
by:
Honda Odyssey

Install directions were perfect for my Odyssey. Haven't plugged it up to test yet. 860206



- C56161
by:
2009 Honda Odyssey

It worked just fine, It plugged in to the existing system and all lites worked perfect. Byron Ninneman 838028



- C56161
by:
Honda Odyssey

Wiring kit worked out great when adding a new trailer hitch to our Honda Odyssey. Instructions for installation were clear and easy to follow. Highly recommended. 825028



- C56161
by:
2006 Honda Odyssey

Perfect, installed without a hitch. 812172



- C56161
by:

It is great! This item fit perfectly and I would highly recommend it! 811553



- C56161
by:

I just received my trailer hitch yesterday. I am still working on having them install it. This is the second time I have gotten a trailer hitch from Etrailer. They are the only place I deal with when it comes to trailer hitches. I ordered it online Sunday and rec 807144



- C56161
by:

Instructions included photos that made it easy. The harness jacked into an existing connector in the back of the van. They included the fuse necessary to activate that circuit. Easy as pie. 804321



- C56161
by:

Great service and a fantastic product! 804380



- C56161
by:

everything installed fine. except I accidentally got the fuses mixed up. be advised, the SMALL fuse goes up front near the passenger side, and the LARGE fuse goes in the rear. I learned this the hard way, and had to open up all the panels again to swap the fuses. it'd be nice if the instructions made this clearer to watch out for. Trailer lights up like it should! 798562



- C56161
by:
2008 Honda Odyssey

This is a very time consuming installation, but the payoff is worth while. It is mostly plug and play, but there is a lot of time spent in the undercarriage. Be very careful of friction and pinch points as well as hot zones. I recommend following fuel lines. We used this our Honda minivan to haul a camper cross country and the trip was much more comfortable than hauling the same trip with our truck. 797262



- C56161
by:
2010 Honda Odyssey

I purchased the trailer wiring kit for my 2010 Honda Odyssey.The ordering process, shipping, installation went well. haven't had any problem from beginning to now, 1 year later. 795085



- C56161
by:

Love the quality and all included parts with this product! The videos on the website make it incredibly easy to install everything to your specific vehicle! Can’t say enough positive things about this company and product! Thank you! 794062



- C56161
by:

Installation was a a dream with full instructions, when I ordered my hitch etrailer pointed me to the best option for the electrical connections. They have worked flawlessly for over a year, great product and suport 783909



- C56161
by:

This product was easy to install and worked perfectly! Initial trip was to move a trailer from Albuquerque to Illinois. It rained all the way back...…..glad it was so reliable. Recommend 100%! Thanks! 777835



- C56161
by:
2009 Honda Odyssey

Excellent instructions, and all the parts I needed. That included the fuse I needed for my particular Honda fuse box. Well thought out. And of course, it functions exactly as I expected. My only suggestion is to think about splitting the outgoing wire harness into two and installing a connector in the interior trim piece. This would allow you to unplug and remove the loose end when not needed. 774338



- C56161
by:
2006 Honda Odyssey

Great service, great product. Recieved my parts in less that 36 hours!!! Minus the ball - that I forgot to order... duh! 773949



- C56161
by:

both the hitch and the wire harness were easy to install. Fit perfectly, and the videos on the website made it a breeze. No if only the lakes were open..... thanks 771964


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Show More Reviews

Ask the Experts about this Curt Custom Fit Vehicle Wiring

  • Trailer Wiring Harness for 2006 Honda Odyssey
    From the looks of the photo you sent in, you may have the wrong trailer wiring harness for your 2006 Honda Odyssey. I was unable to find your order number, but the wiring harnesses that fit an '06 Odyssey do not have the extra plug/cap like you are showing. That said, from the photo it looks like that is just a cap for the plug, but that would be unusual because there's really no reason to have a cap on the T-connector like that. The wiring harnesses that fit your 2006 Honda Odyssey...
    view full answer...
  • Can Trailer Wiring Harness be Routed and Mounted Outside of a 2010 Honda Odyssey
    For trailer wiring harnesses that have the connector stored inside the vehicle you will just need to pull it out when needed and you can close the rear hatch on the wiring and the weather stripping will protect it. Stay away from the locking mechanism though. These harnesses were not meant to be routed permanently outside of your 2010 Honda Odyssey. If you wanted to do that any way you would need to remove the flooring getting down to the bare metal of the cargo area. Then you will need...
    view full answer...
  • Troubleshooting Curt Trailer Wiring Harness on 2012 Honda Odyssey
    The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C56161 is not a fit for your 2012 Honda Odyssey. It is only a confirmed fit for 2005 to 2010 models. For your 2012 model, you would need # C56378 which replaced the C56118. If that is the model you have, then I recommend checking the connections behind the driver's side trim panel in the rear cargo area of your Odyssey. Check the pins to ensure there are no bent pins and then make sure the ground connection...
    view full answer...
  • Troubleshooting Malfunctioning Trailer Wiring Harness on 2009 Honda Odyssey
    According to your description, it sounds like the converter is shot, allowing output on incorrect circuits. The vast majority of the time, the failure of the converter is caused by a short circuit of some kind in the trailer wiring. Before replacing the trailer wiring harness with a replacement like the Tow Ready # 118438, you'll want to closely examine the wiring on your trailer to find the short. If you don't locate and repair the short, you will continue to blow up wiring harnesses....
    view full answer...
  • Trailer Wiring for a 2007 Honda Odyssey and Trailer with 11 Running Lights
    The amperage draw of the 11 running lights is a bit of a concern unless they are LED lights. I recommend going with a higher capacity harness, # 119147KIT. It is rated for 2.1 amps per side for brake and turn signals and 7.5 amps total for all running lights. If you can check each light to determine the amperage draw that will tell you if even the 119147 harness is rated high enough.
    view full answer...
  • Comparing Trailer Wiring Harnesses for a 2008 Honda Odyssey
    The Curt wiring harness # C56161 and the Tow Ready wiring harness # 118438 for the 2008 Honda Odyssey install the same way. Both install behind in a junction box located in the cargo area of the van. This is an ideal setup because it uses the factory location on the vehicle. The Curt harness actually uses a newer technology inside the converter box. Both harnesses would work well for you. I have linked instructions and a video for you.
    view full answer...
  • Trailer Wiring Harness Recommendation for a 2007 Honda Odyssey
    Honestly, either the Curt Custom Fit Vehicle Wiring # C56161 or the Tow Ready Custom Fit Vehicle Wiring # 118438 would work for you since they basically do the same thing. However, Curt uses a more modern style circuit board that builds less heat and generally lasts longer than the style of circuit boards that are in the Tow Ready converters so I would go with the # C56161. I attached installation instructions for the # C56161 for you to check out also.
    view full answer...
  • Purpose Of Converter Or Powered ModuLite On A 4-Pole Flat Trailer Connector
    The converter or (Powered ModuLite) reduces strain on the wiring system. It is a recommended feature to make sure your product stays working for an extended period of time. A powered converter is required to protect the vehicle's sensitive electronics on models not equipped with a tow package. It is recommend that you have a converter so it will keep the integrity of or product intact for an extended period of time. I recommend the Curt T-Connector Vehicle Wiring Harness with 4-Pole...
    view full answer...
  • No Lights On Trailer When Using Curt Custom Wiring # C56161 On 2010 Honda Odyssey
    You will want to check the converter of the Curt Custom Wiring, part # C56161. Use a circuit tester, like part # 40376 to check to make sure there is power going into the converter. Then check to see if your are getting power coming out of the converter. If you are not getting power coming out of the converter, it may need to be replaced. Also, I would check the vehicle side connector to make sure there is not any corrosion in the connector which could be causing a bad connection.
    view full answer...
  • Troubleshooting Damaged Trailer Wiring That is Causing Vehicle Fuses to Blow in Honda Odyssey
    Damaged trailer wiring, such as worn insulation that can cause a short, should be repaired before you replace your vehicles fuses or chances are that you will be doing that regularly. In some cases a short on a trailer can damage a tail light converter, such as the Curt T-Connector Vehicle Wiring Harness # C56161 that you referenced. Check your trailer wiring all the way from the connector to the light fixtures themselves. Inspect the wires for cracked or worn insulation, especially...
    view full answer...
  • Troubleshooting Passenger Turn Signal Working Intermittently On 2006 Honda Odyssey
    I'm sorry to hear you are having a problem with the Curt T-Connector Vehicle Wiring Harness # C56161 on your 2006 Honda Odyssey! Since you are only having an issue with the passenger side turn signal and it is working some of the time I recommend doing a few simple tests on the harness with a circuit tester like # PTW2993. First you will want to make sure that all of the connectors behind the panel on passenger side rear of your vehicle are securely installed, and that the ground...
    view full answer...
  • Install Video Availability of the Curt Wiring Harness part C56161 on a 2010 Honda Odyssey
    I can provide you with a video of different brand's wiring harness that will install the exact same as the Curt Custom Fit Vehicle Wiring # C56161 that you referenced. The video I attached shows the Tow Ready Wiring Harness # 118438 being installed on a 2010 Honda Odyssey just like yours.
    view full answer...
  • Should Curt Trailer Wiring Harness 56161 for 2010 Honda Odyssey have Constant Power with Van Off
    That does seem to be normal for powered converters, especially from Curt. It will not cause any problems unless you have something plugged into the # C56161 harness on your 2010 Honda Odyssey that draws power. You can double check the connections and make sure there are no bent or broken pings, corrosion in the connections, or corrosion at the ground location. Any of these things could cause a short.
    view full answer...
  • Curt Trailer Wiring Harness for 2006 Honda Odyssey has Constant Power
    Are the lights on the trailer actually lighting up or just the circuit tester? If the trailer has LED lights then it is more likely that Curt harness # C56161 will cause them to dimly light up. Curt trailer wiring harnesses that are powered like this one sometimes have this issue. The converter is working properly but for some reason a little power bleeds through causing this exact issue. The Tow Ready harness # 118438 does not have a history of this issue and would be the preferred...
    view full answer...
  • 4-Way Trailer Wiring Harness Recommendation for 2008 Honda Odyssey
    For a 4-way wiring harness confirmed as a fit for your 2008 Honda Odyssey we have the Curt trailer wiring kit part # C56161 which would fit and work well.
    view full answer...
  • Parts Needed To Tow a Trailer with Brakes With a 2009 Honda Odyssey
    The Draw-Tite Max-Frame Trailer Hitch Receiver part # 75270, 7-Way RV Upgrade Kit for Trailer Brake Controller Installation part # ETBC7L, and Curt Echo Wireless Trailer Brake Controller part # C51180 along with a 4-way like the Curt T-Connector Vehicle Wiring Harness part # C56161 are all excellent options needed to tow a trailer with brakes. The only other thing I would add is the Curt No-Drill Bracket for 6-Way or 7-Way Round Trailer Connector Mounting Bracket part # C57202. In regards...
    view full answer...
  • Recommended Towing Components for 2005 Honda Odyssey
    Your 2005 Honda Odyssey is rated for towing up to 3,500 lbs. If you don't already have the trailer hitch, I recommend the Curt Trailer Hitch Receiver - Custom Fit - Class III - 2" # C13068. This will be more than capable of towing your boat and trailer. If you don't already have the wiring, I recommend the Curt # C56161. This harness plugs into your Honda Odyssey's electrical junction box, which is located in your rear cargo area, beneath the trim panel on the passenger's side. Then...
    view full answer...
  • Troubleshooting Trailer Lights not Working After Harness Install
    There are a number of steps for you to take to figure out exactly why the lights on your trailer are not working. You did not specify the harness you used, but for a 2007 Honda Odyssey, there are three fits, the T-One # 118438, Curt # C56161, and Hopkins # HM11143115. To start, we'll isolate the problem to either the trailer or vehicle. You can do this by using a circuit tester such as # 40376 to check the functions of the 4-way plug while somebody else engages them (brake, turn signal,...
    view full answer...
  • LED Trailer Lights Illuminate Even When No Lighting Function Is Activated on the Tow Vehicle
    It is not uncommon for some trailer wiring harnesses like the Curt # C56161 to pass a small amount of power even when no vehicle light function is activated. If used along with super-efficient LED-type trailer lights this can result in low-level illumination when you least expect it. This low power will not light up standard incandescent bulbs but it will sometimes be enough for LED lights that typically use only about 1/10th the power required by incandescent lights. The two solutions...
    view full answer...




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Info for this part was:

Test Fit:
Joe V
Test Fit:
Randy B
Test Fit:
Brent H
Video by:
Andrew K
Video by:
Kathleen M
Video by:
Zach D
Updated by:
Lindsey S
Updated by:
Adele M
Updated by:
Sarah W
Updated by:
Kristina F
Updated by:
Isabelle B
Expert Research:
Michael H
Expert Research:
Jameson C
Video Edited:
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Video Edited:
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