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  1. Custom Fit Vehicle Wiring
  2. CURT
  3. Trailer Hitch Wiring
  4. 4 Flat
  5. Custom Fit
  6. No Converter
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 # C56340
Retail:$63.89
Our Price: $32.01
You Save: 50%
Custom Fit Vehicle Wiring

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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. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C56340 or order online at etrailer.com. Free expert support on all CURT products. Great prices 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 (12)
  • Q & A (0)
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CURT Custom Fit Vehicle Wiring - C56340

  • Trailer Hitch Wiring
  • 4 Flat
  • Custom Fit
  • No Converter
  • CURT

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)
  • Connects quickly and easily - no cutting or splicing of wires
    • Locate connection points in rear cargo area
    • Plug in T-connector
  • Comes with dust cap for 4-way flat connector
  • Limited 1-year warranty


Installation

This custom-fit T-connector plugs into your vehicle's wiring harness, which is located behind the driver's-side and passenger's-side tail lights. You will have to remove the scuff panel and pull back the felt liner to access this harness.


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



56340 Curt T-Connector Vehicle Wiring Harness with 4 Pole Trailer Connector

Installation Details C56340 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 - C56340

Average Customer Rating:  4.8 out of 5 stars   (12 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.

by:
2007 Buick LaCrosse

This is the second one I have purchased from you. The first was excellent, easy to install and I'm sure this one will be also. To make it even easier I ordered the wiring harness also. I will have to tell you later how it went since I just received it. I was surprised how fast it came. Thanks

Tom M.

8/4/2018

Instructions were good but wiring was not easy to install. Took a lot more time than I would have ever thought. After installation everything has been working fine



by:

I received the trailer hitch & wiring kit for my 2008 Buick LaCrosse in a very timely manner. The installed very easily, quite like the video showed. I installed the wiring kit today, & it fit perfectly and works as it should. Thank you.



by:
2006 Buick LaCrosse

Instructions weren't quite accurate - there was more disassembly required to get to the tail light connectors than the instructions indicated. Also, there is a ground wire that the instructions did not indicate where/how to attach. Kit was complete, and was easy to install (installation made sense - just pointing out that the instructions could be more accurate). For the record I installed this on a 2006 Buick Lacrosse CX.



by:

No splicing of wires, just remove taillights and plug in and ready to go



by:

Hitch and wiring were in stock, unlike a competitor who's products were on backorder. Shipped in a timely fashion!



by:

Just what I needed to complete the hitch installation. Thank you



by:

Jim

11/10/2023

Working great



by:
2006 Buick LaCrosse

Excellent item, priced right and delivered quickly.. and great communication. This kit was fully assembled was very easy to install - and fit the 2006 Buick Lacrosse perfectly.



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easy peasy



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See what our Experts say about this CURT Custom Fit Vehicle Wiring

  • Trailer Wiring Harness for 2005 Buick Allure
    I spoke with my contact at Curt, who tells me that the reason that the # C56340 isn't shown as being a fit for the 2005 Buick Allure is that the wiring harness was never tested on the vehicle. Because of this, Curt won't call it a fit. If the only difference between the two vehicles is the nameplate, then the harness should fit. However, because Curt can't confirm the fit, we can't guarantee you the harness will work. If you feel like taking a gamble, go with the # C56340 but if you want...
    view full answer...
  • Will Installing a Transmission Cooler On A 2006 Buick LaCrosse Increase Towing Capacity
    The addition of a transmission cooler will absolutely help while towing with your 2006 Buick LaCrosse to both increase performance and prolong the life of your vehicle's transmission. That said, it will not increase your towing capacity in the eyes of the manufacturer. However, the factory warranty on your LaCrosse has most likely already expired so I recommend you just use your best judgement when it comes to your towing capacity after adding supplements such as a transmission cooler....
    view full answer...
  • Trailer Hitch Recommendation for 2006 Buick Lacrosse
    For your 2006 Buick LaCrosse we have the Draw Tite hitch part # 36374 which is a confirmed fit and will work well for you. It has a 3,500 lb trailer towing capacity but you'll also need to check the owners manual of your vehicle for it's towing capacity and be sure not to exceed the lower of the two figures. For trailer wiring you'd then want the # C56340 which is also a confirmed fit. For a ball mount you'd want the # 36061 and then for hitch balls # 19258 for a 2 inch ball and part #...
    view full answer...
  • Recommended Parts to Tow a Small Trailer with a 2009 Buick LaCrosse
    We have everything that you need to get towing with your 2009 Buick LaCrosse. For a trailer hitch I recommend the 1-1/4" Class II Curt # C12239 because we have found the Curt trailer hitches typically have better welds and a thicker powder coat than other options. This contributes to a longer lifespan of the trailer hitch which in turn raises the quality of the hitch. Since you're needing to tow a smaller trailer you'll also need wiring to activate the trailer lights and for that I recommend...
    view full answer...
  • Recommended Trailer Hitch for 2007 Buick LaCrosse
    Yes, the Draw-Tite Trailer Hitch, # 36374 is a confirmed fit for all models of the 2007 Buick LaCrosse. This is a Class II trailer hitch with a gross trailer weight capacity of 3,500 pounds, and a tongue weight capacity of 350 pounds. I have included a link to the installation details and a video showing a typical installation for you to view. If you plan to do some towing the recommended ball mount is # 36061. For a ball, use # 19256 (1-7/8 inch diameter) or # 19258 (2 inch diameter)....
    view full answer...
  • Trailer Wiring Harness Recommendation for a 2006 Buick LaCrosse
    The Curt wiring harness part # C56340 is the correct wiring harness for your 2006 Buick LaCrosse. However, it does not have any circuit protection built into it. This is a custom harness designed to install easily on your vehicle, but it does not have circuit protection. Curt tested your vehicle and determined that circuit protections wasn't necessary. If you wanted a harness with circuit protection you would want the Tow Ready Custom Fit Vehicle Wiring # 119178KIT. This is a hardwire...
    view full answer...

Do you have a question about this Custom Fit Vehicle Wiring?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Cole B
Installed by:
Cole B
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B
Employee Amanda M
Written by:
Amanda M

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