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THIS ITEM IS NOT A FIT FOR
1994 Ford Van
etrailer Installation
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CURT

Curt 4-Way Flat Trailer Connector with Circuit Protected Powered Tail Light Converter

Part Number: C85FV
In Stock
$60.27
Custom Fit Vehicle Wiring
Not Confirmed to Fit

1994 Ford Van

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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Install a 4-way trailer connector on your vehicle with this wiring harness with tail light converter. Requires splicing into existing vehicle wiring. Works with domestic and import vehicles. Includes wire taps. 1-800-940-8924 to order CURT custom fit vehicle wiring part number C85FV or order online at etrailer.com. Free expert support on all CURT products. Great prices and Fastest Shipping for Curt 4-Way Flat Trailer Connector with Circuit Protected Powered Tail Light Converter. Custom Fit Vehicle Wiring reviews from real customers.
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  • Reviews (8)
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CURT Custom Fit Vehicle Wiring - C85FV

Highlights

  • Custom Fit for Your Vehicle: Works with your vehicle's wiring
  • Safe Circuit Protection: Powered converter isolates trailer wiring to prevent shorts from affecting vehicle lights.
  • Reliable Power Feed: Direct battery connection ensures full voltage and protects sensitive taillight circuits.
  • Universal 4-Way Ready: Standard flat connector powers running, turn, and brake lights for most small trailers.
  • Clean Install Option: Splice-in plug and lead design lets you integrate wiring neatly behind panels.
  • Durable Setup: Circuit-protected harness guards against overloads for long-term towing reliability.
Made in USA

Features to know about

Keeps Your Vehicle Circuits Safe: Powered Converter with Circuit Protection

When wiring a trailer, the last thing you want is a short that fries your taillight circuits. The Curt 4-Way Flat Trailer Connector with Circuit Protected Powered Tail Light Converter runs a dedicated power wire straight to the vehicle’s battery. That setup isolates the trailer lighting from your vehicle’s factory wiring, so any trailer short stays outside the vehicle’s system. It’s the safest and most reliable way to power your trailer lights.

Handles Trailer Lighting the Right Way: 4-Flat Connection for Core Functions

With this harness, you get a standard 4-flat connector that handles all the basics—running lights, turn signals, and brake lights. It gives a clean, dependable connection for small and mid-size trailers, campers, or utility haulers. You can hook up and know everything is working exactly as it should.

Simplifies Setup: Splice-In Plug and Lead Design

Instead of dealing with complex factory connectors or special adapters, this harness uses a simple splice-in design. The plug-and-lead style gives you flexibility to mount the converter box where it fits best and route wires neatly along the frame or trim. Once connected, everything is secure and out of the way.

Built for Clean, Protected Installs: Add-On Options for Wire Safety

Trailer wiring can take a beating from road debris or critters, but keeping it shielded is easy. You can pair this harness with add-ons like an in-line fuse holder or 1/4" wire loom to protect exposed runs. That extra layer keeps the wiring safe from damage and helps your setup last longer without headaches down the road.

Specs

  • Image: Comparison chart of Curt 4-way flat trailer wiring harnesses showing different plug styles, converter boxes, and wire configurations for vehicle-to-trailer light connections.
  • Layout:

Curt Circuit Protected Powered Converter w/ SMT

Replaces Curt 56146

Compare to Tekonsha 118721



This Product Fits The Following Vehicles




Customer Satisfaction Score:

Ratings & Reviews

4.8

8 reviews
Review sort icon
Install a 4-way trailer connector on your vehicle with this wiring harness with tail light converter. Requires splicing into existing vehicle wiring. Works with domestic and import vehicles. Includes wire taps.

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Great transaction. Satisfied with the product. Works great.



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I just finished installing the Curt trailer converter. I also used the Curt tester to verify that the harness wiring was installed correctly. All lights are operational on the tester! It was a success! I followed the instructions that were supplied and also used a VW factory wiring diagram to verify the proper wiring to the rear lights. Very honestly the use of the factory wiring diagram is a absolute necessity to get the correct wiring. I ran the wiring under the vehicle into the engine compartment to the battery. I would not recommend trying to run the hot lead through the interior and dash panel. There are not grommets in the firewall to go through and about impossible to get the trim and the under dash panels removed.


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

  • Trailer Wiring Options For A 2025 Chevy Equinox Without Factory Towing Package
    Hi Dennis, your request is proving to be more difficult than I assumed it was going to be. From what I could ascertain, you have 2 to 3 options for your 2025 Chevy Equinox without the tow package, which I have listed out below. First, you can use the Tekonsha ZCI Circuit Protected Vehicle Wiring Harness # 119250KIT. This uses sensors clamped over the wiring so you do not need to do any splicing, which is nice. You will still have to run a line up to the battery to provide the needed power,...
    view full answer...
  • Parts Needed to Add Trailer Wiring to 2023 Toyota Tundra SR
    Hey Ron, since your 2023 Toyota Tundra doesn't have the tow package currently you would need the 4-way kit part # C85FV for the taillight functions of the trailer wiring. Then if you needed to convert to a 7-way you'd also need the part # 37185. Does the trailer have brakes?
    view full answer...
  • How to Protect Wires From Squirrels
    Hey George! You can install the Replacement In-Line Fuse Holder for Curt Wiring Harness item # C58470-1on the 4-way wires of the Curt 4-Way Flat Trailer Connector with Circuit Protected Powered Tail Light Converter item # C85FV. This would be the only way we have to run fuses to that harness. To protect your trailer wiring, I recommend wrapping it with the Wire Loom 1/4" Diameter, 10' Long item # 7509-10. Other than running conduit I don't have another option to keep squirrels out of...
    view full answer...
  • Can I Add A 4-flat Connector To The Back Of My Camper For Double Towing?
    Hello and thanks for getting in touch. It is possible to add a 4-pin connector to the back of your camper for double towing. To hook up the lighting you will need to use junction box # 38656 along with 4-flat connector # HM48035, which you can mount with brackets # 18144 and # 18140. You are going to run the lights from your camper to the junction box and then to the 4-flat connector. You may need extra wire # DW02923-1 and butt connectors # 05730-5 as well.
    view full answer...
  • Is There Small Battery That Could be Used for Trailer Wiring that Runs Up to Battery
    Hey Erik, unofficially I have a solution for that with the Bright Way Trailer Breakaway kit part # 3802336. This is a pretty small battery in a box you could run your converter box to instead of all the way up to the vehicle battery but I have to emphasize this is not recommended and you'd run chance of killing the battery and not having trailer taillights.
    view full answer...
  • Does Curt Trailer Wiring Harness for 2020 Toyota Camry Hybrid Require 55151 Install Harness
    For your 2020 Toyota Camry Hybrid the Curt trailer wiring harness part # C85FV is a confirmed fit. The wiring harness part # 55151 is required to run the power wire up to the battery as well. It is confusing that it shows as "not a fit" for your vehicle but I can assure you it does.
    view full answer...
  • Recommended Brake Controller For A 2007 Monaco Dynasty
    Hey Danniel, If you don't already have a 7-way or 4-way on the back of your motorhome then you'll need to start with the Curt 4-Way Flat Trailer Connector with Circuit Protected Powered Tail Light Converter # C85FV. This will splice into your factory tail light wiring and run up to the battery for power. From there you can install the # ETBC7 7-way kit. This will plug into the 4-pole wire harness for the lights and have wires to run to power/ground and up to the brake controller. Once...
    view full answer...
  • Does Trailer Wiring Power Wire Have to Run Up to Vehicle Battery
    Hey Edo, so the reason you want to run the power wire of the Curt 4-way part # C85FV all the way up to the battery is because this prevents the possibility of any trailer wiring shorts from affecting the taillight circuits of the vehicle. This is only safe way we can recommend you install the harness.
    view full answer...
  • Will Curt Trailer Wiring C85FV Trigger Trailer Connected Message
    Yes, if you installed the Curt trailer wiring kit part # C85FV on your 2023 Ford Maverick it would NOT trigger the trailer attachment message. This is because it does not tie into to factory trailer wiring where that message originates.
    view full answer...


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Wilson B
Updated by:
Wilson B
Employee Sabrina W
Written by:
Sabrina W

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