Shopping Cart

Your cart is empty.

Your cart is empty.

CURT 55179 Non-Powered 3-to-2-Wire Splice-in Trailer Tail Light Converter Kit, 4-Pin Wiring Harness

Free shipping on orders over $29.99

$16.83

$ 7 .99 $7.99

In Stock
  • RELIABLE POWER. This non-powered 3-to-2-wire taillight converter provides a dependable splice-in trailer wiring harness option, if a CURT custom trailer wiring harness is not available for your vehicle
  • STANDARD OUTPUT. This tail light converter converts the 3-wire vehicle electrical system to standard 2-wire trailer wiring and provides a standard 4-way flat socket to connect the taillights, brake lights and turn signals for towing
  • COLOR-CODED WIRES. To make installation faster and easier, this trailer wiring converter splices into your vehicle using color-coded wires (2.1 amps signal circuit, 5.0 amps taillight circuit)
  • READY TO INSTALL. This trailer light converter comes ready to install on your vehicle. It includes snap locks for secure connection of the wires, and it requires no heavy-duty flashers or direct battery connection
  • WEATHER-RESISTANT. To help protect this trailer light converter from the elements, it comes with a rubber dust cover for the 4-pin wiring connector, shielding it from rain, dirt, dust and more when not in use


When your vehicle does not readily provide an electrical connection for hooking up your trailer, CURT electrical converts offer the solution. Working tail lights on your trailer are absolutely essential any time you tow, and a converter provides an effective way to properly equip your vehicle for safe towing. A CURT electrical converter, much like our custom vehicle-to-trailer wiring harnesses, provides a trailer connector on your vehicle by splicing into the vehicle's electrical system. Electrical converters are designed to splice directly into the taillight wiring, rather than plugging into various sockets, giving them the nickname "taillight converters". Though it requires a little extra work compared to a custom wiring harness, a tail light converter offers a reliable, long-term connector solution. This CURT electrical converter is designed to convert a 3-wire system to a 2-wire system and provides a standard 4-way flat connector socket to plug in your trailer. This converter is made with cutting-edge surface-mount technology (SMT) circuitry, featuring electrical components that are mounted directly to the surface of the board rather than being inserted into a series of holes. SMT circuits have longer life cycles, lower resistance, reduced heat generation and are more reliable than through-hole-mounted components.


Nick
2025-08-14 14:12:36
Solves my problem with wiring a 4 wire plug to 5 wires
Basilie Bill Actipis
2025-08-04 11:45:37
After several attempts and confirming my thoughts with Curt this Item will "NOT" work wit a 2006 Lincoln Town Car.Don't waist your time,It's being returned.The LCM will not allow Brake light function.
Eric Uhde
2025-08-02 09:17:43
Easy install very happy
David
2025-08-01 17:48:20
I like the ease of the install. The only real problem is that yhey don't last very long. The rated amperage is around 2 amps. My trailer has 3 bulbs on each side for the break/blinker. With 3 bulbs it exceeds yhe amperage ratting. I guess that I will have to build my own with 2 relays or power transistors. Very cheap to build one that will handle the power.
terry monroe
2025-07-26 15:08:38
Unfortunately I didn’t test it right away, now when I need it only the running lights work.
Jane S.
2025-06-23 16:02:08
Passenger side turn signal did not work from the beginning and the brakes do not work at all from the beginning this was a total waste of time to install. Waste of butt connectors waste of time on doing all the panels to tuck all the wires and nicely to find out this thing is complete junk
emptydown
2025-06-14 13:52:39
Wired everything up and the brake lights will only flash brighter briefly when you apply the brakes before dimming back to normal. Waste of time and money, don't bother.
TomDooly
2025-06-01 09:03:35
honestly Curt should be ashamed to offer and sell such a scrap like this and Amazon should take it from the marketplace right away! This is the 2nd one in a row that arrived dead! It looks good and also looks well made but thats it!! It's useless scrap out of the factory!The only light that works is the park lights, because this doesn't go through any electronics but right through to the lamps. blinker and stop light does not work at all!This is the same item like the Curt 55177, just with added clips, same scrap!+++DO NOT BUY - DON'T WASTE YOUR TIME!!+++
Nick
2025-05-31 10:39:21
Solves my problem with wiring a 4 wire plug to 5 wires
Basilie Bill Actipis
2025-05-27 11:56:25
After several attempts and confirming my thoughts with Curt this Item will "NOT" work wit a 2006 Lincoln Town Car.Don't waist your time,It's being returned.The LCM will not allow Brake light function.
Eric Uhde
2025-05-11 18:55:28
Easy install very happy
David
2025-03-13 18:52:06
I like the ease of the install. The only real problem is that yhey don't last very long. The rated amperage is around 2 amps. My trailer has 3 bulbs on each side for the break/blinker. With 3 bulbs it exceeds yhe amperage ratting. I guess that I will have to build my own with 2 relays or power transistors. Very cheap to build one that will handle the power.
terry monroe
2025-03-11 13:19:35
Unfortunately I didn’t test it right away, now when I need it only the running lights work.
Jane S.
2025-03-03 11:37:45
Passenger side turn signal did not work from the beginning and the brakes do not work at all from the beginning this was a total waste of time to install. Waste of butt connectors waste of time on doing all the panels to tuck all the wires and nicely to find out this thing is complete junk
emptydown
2025-02-23 19:18:39
Wired everything up and the brake lights will only flash brighter briefly when you apply the brakes before dimming back to normal. Waste of time and money, don't bother.
TomDooly
2025-01-13 15:25:10
honestly Curt should be ashamed to offer and sell such a scrap like this and Amazon should take it from the marketplace right away! This is the 2nd one in a row that arrived dead! It looks good and also looks well made but thats it!! It's useless scrap out of the factory!The only light that works is the park lights, because this doesn't go through any electronics but right through to the lamps. blinker and stop light does not work at all!This is the same item like the Curt 55177, just with added clips, same scrap!+++DO NOT BUY - DON'T WASTE YOUR TIME!!+++
Recommended Products

$49.08

$ 24 .99 $24.99

4.5
Select Option

$49.50

$ 23 .99 $23.99

4.4
Select Option

$36.19

$ 15 .99 $15.99

4.8
Select Option

$39.27

$ 17 .99 $17.99

4.9
Select Option

$44.95

$ 22 .99 $22.99

4.9
Select Option

$87.07

$ 40 .99 $40.99

4.6
Select Option