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  1. Custom Fit Vehicle Wiring
  2. CURT
  3. 4 Flat
  4. No Tow Package
  5. Trailer Hitch Wiring
  6. Vehicle End Connector
THIS ITEM IS NOT A FIT FOR
2023 Keystone Sprinter Fifth Wheel
etrailer Installation
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CURT

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

Part Number: C55308
In Stock
$44.35
Custom Fit Vehicle Wiring
Not Confirmed to Fit

2023 Keystone Sprinter Fifth Wheel

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In Use/Installed

etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
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. Converter is made using SMT to ensure superior performance. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C55308 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 (42)
  • Q & A (0)
  • Photos

CURT Custom Fit Vehicle Wiring - C55308

Highlights

  • Custom Fit for Your Vehicle: Works with your vehicle's wiring
  • Plug-and-Play Install: T-connector plugs inline with tail lights—no cutting or splicing.
  • Tow-Ready Lighting: 4-way flat connector powers trailer stop, turn, and tail lights.
  • Protects Vehicle Circuits: Draws only 3 amps per stop/turn and 5 amps on tail lights.
  • LED-Compatible Wiring: Works seamlessly with trailers using LED lighting.
  • No Tow Package Needed: Adds trailer wiring even if the vehicle wasn’t factory prepped.

Features to know about

Installs Without Cutting or Splicing: Plug-In 4-Way Harness

Wiring a trailer usually means cutting and guessing at factory wires, but this harness makes it plug-and-play. The Curt T-Connector uses factory-style plugs that snap right into place to give you a working 4-flat connector without splicing. It’s clean, hidden, and ready to use.

Protects Vehicle Electronics: Converter Limits Current Draw

This harness is built with a converter that keeps the vehicle’s wiring safe. It only draws a maximum of 3 amps per circuit on the stop and turn lights and a maximum of 5 amps on the tail and running lights. That means it won’t overload your vehicle circuits or pop fuses—only a wiring short would trip protection.

Works Seamlessly with LED Trailer Lights

No extra adapters are needed when your trailer has LED lights. The Curt T-Connector is fully compatible, so you can hook up and go without worrying about flicker or signal issues that happen with older harnesses.

Ready for Everyday Towing: Standard 4-Flat Connection

Once installed, you’ve got the standard 4-way flat connector that powers your trailer’s running lights, turn signals, and brake lights. It’s the dependable setup most small trailers use and makes it simple to connect and disconnect when you need to tow.

Specs

Electrical Specifications

  • Stop/turn light circuit maximum amperage: 3 amps per circuit
  • Tail/running light circuit maximum amperage: 5 amps

Comparison chart image showing Curt T-Connector vehicle wiring harness models with labeled connectors and wiring layouts for trailer hitch installation.


55308 CURT T-Connector - Surface Mount Technology - 4 Wire

Similar to Tekonsha 118308 and Hopkins HM11141775

Installation Details C55308 Installation instructions

This Product Fits The Following Vehicles




Ratings & Reviews

4.7

42 reviews
Review sort icon
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. Converter is made using SMT to ensure superior performance.

by:

merci très satisfait, bons produits.



by:

Had a great experience. Ordering was very easy and delivery was very quick.



by:

Love & Happiness!



by:

Easy install. Hasn't let me down



by:

Easy install, replaced that car with with one 5 years younger and moved it to the newer car. No problems. Both cars are Camerys



by:

-No words available to explain how impressed and satisfied I am.Just plug in as the easy to read & understand directions said and you are ready to go.No additional work required.Works perfectly!



by:

The video was done too fast. It skipped alot like where to put the box. It also failed to warn about the 4 plastic buttons that hold the cover in place. Not easy to line up with the 4 holes on top. If they arent in the cover, it wont line up with the latch. You cant close the trunk. Im still working on it. The tape to hold the box on is too whimpy. Im just letting it sit in the cargo space on the left. Also no sticker on the box. was this a return? Electrical items should not be accepted. Its not fair to the next smuck that buys it.



by:

Quick and painless plug and play.



by:

i haven't had time to install this yet, but the hitch i bought earlier is fantastic and i'm sure this will be too



by:

The wiring harness showed up earlier than expected and was surprisingly easy to install.



by:

Great product at a fantastic price and free shipping, too!



by:

The hitch package I installed on my 05 Camry is holding up great and pulls my bass tracker like a charm!



by:

Perfect fit on 2005 Camry.
Easy installation.
Easy
ordering and fast shipping.



by:

Very easy to install. Works like it says it would.live saver.



by:

Still working like a champ after 1 yr. Great installation video too.



by:

The instructions had about 90% of the info needed to install. Was a little lacking in describing how to deal with the various clips on interior panels Ann the factory wire harness.
Still, an easy install for me.



by:

Simply awesome. Took less than ten minutes to install. Works perfectly . I cant imagine hooking up my HF trailer to my Camry without this harness



by:

The order was descriptive and complete. I was notified of the shipping date and all wet well with the receiving. Our install was without any hitches. Thank you etrailer



by:

Need to swap out lights to LED to prevent overloading system.



by:

Really an easy installation. Snapped in the connectors and hooked up the trailer and everything worked. Hardest part was getting a small screwdriver to open the existing connector (tabs). That took 2 minutes.



by:

I ordered and received 4 items related to a trailer hitch for a 2002 Toyota
Great service, good quality products and fast delivery. I love it when a plan
Comes together!



by:

worked out well



by:

Ordered a hitch on line which was delivered in no time. It was easy to install. Soon after ordered the hitch plug in for my lights. They too came with fast delivery. Was missing one small piece and notified them. They were quick to answer back and sent me what I needed. Their customer service and product gets 5 stars from me. Would definitely order from them again.



by:

Perfect fit. Have yet to try on highway but pulls great in town.



by:

I bought this trailer wiring harness to replace my preexisting one that had a short in it. The new harness was very easy to install and has worked perfectly. Very happy with the purchase.


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

  • Trailer Hitch Recommendation for 2004 Toyota Camry for 3-Bike Rack and Towing
    Thank you for all of the details, it sounds like you've really been doing your research! I recommend going with the Class II Curt Trailer Hitch Receiver # C12339 2004 Toyota Camry for a few reasons; the Curt hitches tend to have a thicker powder coat so the metal is better protected against the elements, and it has the Class II rating which is needed for any bike rack carrying more than 2 bikes. Class I hitches are weaker so adding more weight further away from the receiver (like with...
    view full answer...
  • Trailer Hitch Receiver For 2002 Toyota Camry
    We do have available hitch options for your 2002 Toyota Camry, part # C12339 works for your application. I also recommend picking up # F-4 to secure your hitch mounted accessories. If you are planning on pulling a trailer I recommend part # C55308 for your wiring. The Curt T-Connector harness is a plug and play system which makes it simple to install.
    view full answer...
  • Does the 4-Way Wiring Harness for a 2006 Camry Work w/ LED Trailer Lights?
    Yes, it will. The Curt T-Connector Vehicle Wiring Harness item # C55308 will work with a trailer that has LED lights. This harness is confirmed to fit a 2006 Toyota Camry. It will provide you with a 4-way connector. I have linked an installation video below.
    view full answer...
  • Parts Needed to Tow Small Trailer With 2005 Toyota Camry
    I have options for the Camry but there is not a 2" hitch receiver available for the 2005 Toyota Camry. Smaller vehicles like the Camry that are not designed to tow will sometimes not have 2" hitch receiver fits. I recommend the Curt Class II trailer hitch part # C12339 because it is assembled in the USA. It is a 1-1/4" hitch but has a tongue weight rating of 300 lbs which is 100 lbs higher than most 1-1/4" hitches. I have attached an installation video for your reference. If you plan...
    view full answer...
  • Parts Needed to Tow Trailer with 2005 Toyota Camry
    We have all of the parts you'll need to tow a trailer with your 2005 Toyota Camry with the hitch from Draw Tite part # 36336, trailer wiring part # C55308, ball mount # C45520, and hitch balls # C40018 for a 2 inch ball or # C40001 for a 1-7/8 inch ball and pin and clip part # F-4 and you'd be set with everything to tow a trailer.
    view full answer...
  • All Parts Needed to Tow With 2005 Toyota Camry
    Sure, you can put a trailer hitch and tow with a 2005 Toyota Camry. You'll want to check your version of the owner's manual for capacities to ensure it aligns with what you are carrying, though; from my research it was 2,000 lbs but please do verify. In order to tow with your '05 Camry you'll just need the following parts: - Curt Trailer Hitch Receiver # C12339 - 4-Flat Wiring Harness # C55308 - Drawbar # C45521 - Pin and Clip # F-4 - 2" Hitch Ball # C40018 or 1-7/8" Hitch Ball # C40001 The...
    view full answer...
  • Curt Wiring Harness # C55308 Compatibility with 2003 Toyota Camry
    The Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector # C55308 is a confirmed fit for your 2003 Toyota Camry. It will not draw enough power to cause a circuit breaker to trip or a fuse to fail. It will draw a maximum of 3 amps per circuit on the stop and turn lights and a maximum of 5 amps on the tail/running lights. A short in the wiring would be the only reason that would happen to protect your vehicle electronics.
    view full answer...


Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Lindsey S
Written by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Sue W
Video Edited:
Sue W
Employee Wilson B
Updated by:
Wilson B
Employee Kristina F
Updated by:
Kristina F
Employee Isabelle B
Updated by:
Isabelle B

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