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We know our products
Quality Products
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Warranty: One-Year Limited Warranty
Output Type: 4-Way Flat
Tail Light Circuits: 7.5 Amps Per Circuit
Turn and Brake Circuits: 7.5 Amps Per Circuit
Installation Time Exact (Minutes): 0
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.
CURT offers a variety of high-quality trailer hitches and accessories for select vehicle models. Find the perfect fit for your towing needs at TowUniverse.
CURT, a Lippert brand, offers a complete line of towing products and is the leading manufacturer of custom-fit trailer hitches. We offer the broadest selection of custom-fit hitches, and each one is designed, welded, and coated in Wisconsin.
CURT is also a leader in flat towing products, as well as 5th wheel, gooseneck, and weight distribution hitches, ball mounts, electrical components, cargo solutions, and other towing accessories.
For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products®.'
Experts available to answer your questions
Call 888-634-9494Rediscover "Us" Time | Tested. Proven. Safe. Towing Products
The Curt 59190 is a heavy duty powered circuit protected tail light converter with wiring kit. It converts vehicle taillight signals (left turn, right turn, tail, and stop lights) to a 4-flat trailer connector, allowing you to connect a trailer and have its lights controlled by your vehicle's lighting system. It includes a wiring kit, mounting hardware, cable ties, and a 10 amp fuse.
The converter is designed exclusively for 12 volt negative ground vehicle systems. It will not work on positive ground systems. Verify your vehicle uses a 12 volt negative ground electrical system before purchasing.
The converter can be installed on vehicles where taillight wiring is accessible. According to the manual, wiring locations vary by vehicle type and may be found behind driver's or passenger's side tail light housings, rear access panels, or rear bumpers. You will need to locate your vehicle's taillight wiring before installation. The manual does not specify which makes, models, or years are compatible.
You will need a test light to identify the taillight wires in your vehicle's harness. A drill with a 3/32" bit is required to create a hole for the ground eyelet mounting screw. A screwdriver is needed to secure the ground wire. Cable ties are provided in the kit for securing wires. No other specialized tools are mentioned as required.
The kit includes a converter module, wiring harness with input wires for left turn, right turn, tail and stop lights, a white ground wire with ring terminal and eyelet, a ground screw, double-sided tape for mounting, cable ties, a fuse holder with 10 amp fuse, a butt connector, and a ring terminal for battery connection. The power wire is 12 gauge or larger.
Yes. Step 3 of the installation requires you to temporarily disconnect the negative battery cable from the vehicle's battery before attaching any wires to the converter. Reconnect the negative battery cable after securing the converter wires with cable ties and before testing.
Locate an accessible mounting location outside the passenger cabin. Choose a clean surface that is out of the path of road spray and debris from the rear wheels. The converter is mounted using double-sided tape provided in the kit. Before selecting any location, verify that miscellaneous items are not hidden behind or under the surface to avoid damage to the vehicle or personal injury.
Use a test light to probe the wires in your vehicle's taillight harness. Activate each light function (left turn, right turn, tail, and stop lights) one at a time and note which wires light up the test light. This identifies the correct wires to connect to the converter's corresponding input terminals. Wire locations vary by vehicle type and may be behind tail light housings, rear access panels, or rear bumpers.
After identifying the left turn, right turn, tail, and stop light wires using a test light, attach each wire to the corresponding input terminal on the converter as shown on page 2 of the manual. The converter has input terminals for each signal. Ensure the negative battery cable is disconnected before making these connections.
Locate a suitable mounting location on the vehicle's frame or cross member near the converter. Remove any debris or undercoating to expose clean metal. Drill a 3/32" hole. Attach the white ground wire's ring terminal using the ground screw provided. Before drilling, verify that miscellaneous items are not hidden behind or under the surface.
Route 12 gauge or larger wire from the vehicle battery positive terminal to the converter, taking care to avoid pinch points and hot or rotating components. Use the ring terminal provided to connect to the battery. When passing the wire through sheet metal, use an existing grommet, add a grommet, or use silicone to protect the wire from sharp edges. Secure the power wire to the vehicle chassis using cable ties provided. Install the 10 amp fuse only after all other steps are completed.
Install the 10 amp fuse in the fuse holder only after all other installation steps have been completed. This includes after connecting all wires, mounting the converter, securing the power wire, and before testing the system.
Yes, drilling is required. You must drill a 3/32" hole in the vehicle's frame or cross member to mount the ground eyelet. Before drilling, verify that miscellaneous items are not hidden behind or under the surface to avoid damage to the vehicle or personal injury.
Drill a 3/32" hole in the vehicle's frame or cross member to mount the ground eyelet. The hole accommodates the ground screw provided in the kit.
The converter uses a 10 amp fuse, which is the maximum fuse rating. The fuse holder with 10 amp fuse is included in the kit.
Use 12 gauge wire or larger for the power connection from the vehicle battery to the converter. The manual specifies this as the minimum requirement.
Before drilling or mounting, verify that miscellaneous items are not hidden behind or under any surface to avoid damage to the vehicle or personal injury. When routing the power wire, avoid pinch points and hot or rotating components. When passing the power wire through sheet metal, use an existing grommet, add a grommet, or use silicone to protect the wire from sharp edges. Temporarily disconnect the negative battery cable before wiring. Do not use on positive ground systems.
Two test methods are provided. Method 8A uses a test light: attach the ground lead to the exposed ground terminal of the 4-flat end, activate the tow vehicle's left turn, right turn, tail, and stop lights one at a time, and probe the three receptacles of the 4-flat end to confirm proper operation. Method 8B uses a trailer: connect the vehicle 4-flat with trailer wiring and test using the trailer lights. Activate each light function one at a time. If trailer lights do not operate properly, disconnect the trailer and use a test light to check the vehicle 4-flat. If the vehicle 4-flat operates properly, the issue is with the trailer.
Disconnect the trailer 4-flat connector. Using a test light, check for proper operation at the vehicle 4-flat by activating the left turn, right turn, tail, and stop lights one at a time and probing the three receptacles. If the vehicle 4-flat operates properly, the problem is with the trailer or its wiring. If the vehicle 4-flat does not operate properly, review the converter connections and wiring.
The Curt 59190 works on 12 volt negative ground vehicles with accessible taillight wiring. Wiring is typically found behind tail light housings, rear access panels, or rear bumpers. The manual does not list specific vehicle makes, models, or years. Contact Curt Manufacturing technical support at 1-877-287-8634 to confirm compatibility.
Yes, temporarily disconnect the negative battery cable before connecting any wires to the converter. Reconnect it after securing the converter wires with cable ties and before testing.
Use 12 gauge wire or larger for the power connection. The converter includes a 10 amp fuse, which is the maximum rating.
Verify that all taillight wires are correctly identified and connected to the corresponding input terminals on the converter. Use a test light to confirm the vehicle's left turn, right turn, tail, and stop lights are functioning at the source. Check that the negative battery cable is reconnected and the fuse is installed. Verify the ground wire is securely mounted to clean metal on the vehicle frame.
Disconnect the trailer and test the vehicle 4-flat connector with a test light. Activate each light function (left turn, right turn, tail, stop) one at a time and probe the three receptacles. If the vehicle 4-flat operates properly, the problem is with the trailer or its wiring. If the vehicle 4-flat does not show all lights, verify that all taillight wires are correctly connected to the converter input terminals.
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Authorized Dealer| Kit # | Pkg # | Bulk # | 30-Pack# | Powered | Circuit-Protected | Signal Circuit | Taillight Circuit | SMT |
|---|---|---|---|---|---|---|---|---|
| 59496 | 56496 | -- | 56497 | Yes | Yes | 3.0 amps | 6.0 amps | Yes |
| -- | 56130 | -- | -- | -- | -- | 3.0 amps | 5.0 amps | Yes |
| -- | 56175 | -- | -- | Yes | Yes | 3.0 amps | 5.0 amps | Yes |
| 59187 | 56187 | -- | -- | -- | Yes | 3.0 amps | 5.0 amps | Yes |
| 59190 | 56190 | -- | -- | Yes | -- | 7.5 amps | 7.5 amps | Yes |
| -- | -- | 58240 | -- | -- | -- | 2.1 amps | 5.0 amps | Yes |
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