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Vehicle battery connection required
Includes fuse holder, battery connection wiring and other necessary wiring components
Includes fuse holder, battery connection wiring and other necessary wiring components
Warranty: One-Year Limited Warranty
Electrical System Type: 3W
Output Type: 4-Way Flat
Tail Light Circuits: 6.0 Amps
Turn and Brake Circuits: 3.0 Amps
Installation Difficulty: Professional
Installation Time Exact (Minutes): 60
If your vehicle is not equipped with wiring for towing a trailer, CURT custom wiring is the ideal solution. A custom wiring harness -- also called a T-connector -- is a simple, plug-and-play electrical device that plugs into your automotive electric system and provides a standard, universal trailer wiring connection. This is done using two or more vehicle-specific, OEM-compatible connectors to plug into the taillight assembly, eliminating the need for cutting, splicing and soldering during installation. Custom wiring harnesses are made vehicle-specific, and while they are not available for all vehicles, they do offer one of the fastest, easiest and most secure ways to wire a vehicle for towing. This particular plug-in harness provides a 4-way flat connector socket and is designed to be a custom wiring harness to fit certain years of the Toyota RAV4 (to verify your vehicle compatibility, see application info). It comes with all necessary wiring components to establish a reliable trailer wiring connection, as well as a dust cover to keep the connector clean when not in use. You have a picture in mind of your next destination -- maybe it's the boat landing at your favorite fishing spot, maybe it's a campsite that overlooks one of nature's masterpieces, or maybe it's the next big jobsite. However, turning that picture into a reality takes more than just daydreaming. It takes a solid connection and the right amount of power. CURT custom wiring is made with some of the most sophisticated technology in the industry and is designed to install with ease, giving you a long-lasting electrical connection for your towing hitch setup.
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 888-634-94943 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2023 - 2026 | Mitsubishi Outlander PHEV | Installation Time: 60-90 minutes |
| 2019 - 2025 | Toyota RAV4 | Installation Time: 60-90 minutes |
| 2021 - 2024 | Toyota RAV4 Prime | Installation Time: 60-90 minutes |
The CURT 56434 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota RAV4 (Part #BKDK56434) fits the following vehicles: 2023-2026 Mitsubishi Outlander PHEV; 2019-2025 Toyota RAV4; 2021-2024 Toyota RAV4 Prime. Always verify your specific year, make, and model before ordering.
The CURT 56434 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota RAV4 (Part #BKDK56434) fits 2023-2026 Mitsubishi Outlander PHEV models. The 2026 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the CURT 56434 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota RAV4 (Part #BKDK56434) is designed to fit the 2023-2026 Mitsubishi Outlander PHEV.
The CURT 56434 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota RAV4 (Part #BKDK56434) Typical installation time is 60-90 minutes. Basic hand tools are typically all you need.
The CURT 56434 is a powered converter lead and custom wiring harness system designed for SUVs and vans. It converts your vehicle's taillight signals into a 4-flat trailer connector, allowing you to tow a trailer with integrated lighting. The system includes a converter box, wiring harnesses with color-coded leads (yellow for left turn, green for right turn, red for brake, brown for taillight), a power wire, ground wire, fuse holder, and a 4-flat dust cover.
The CURT 56434 is designed for SUVs and vans with 12-volt negative ground electrical systems. The manual does not specify particular vehicle models or years. Consult your vehicle's owner's manual to confirm it has a 12-volt negative ground system before purchasing.
No. The CURT 56434 is designed only for 12-volt negative ground systems. Do not attempt to use it on 24-volt systems or vehicles with positive ground electrical systems.
You will need: ratchet, wire cutter, 10 mm socket, wire crimper, socket extension, wire stripper, small flathead screwdriver, panel trim removal tool, and electrical tape. These tools are required to disconnect the battery, remove interior trim panels, work with wiring connectors, and secure the converter box and ground wire.
The kit includes: a black converter box, custom wiring harnesses with color-coded leads (yellow, green, red, brown), a black 12-gauge power wire, a white ground wire with ring terminal, a fuse holder with 10-amp fuse, double-sided tape for mounting the converter box, a provided screw for the ground wire, cable ties for securing loose wires, and a 4-flat dust cover.
Yes. You must disconnect the negative battery terminal before beginning installation. Locate the battery using your vehicle's owner's manual, disconnect the negative terminal, and fasten this wire down and away from the battery. Reconnect it only after all other installation steps are complete and you have tested the harness for proper function.
You must remove: the trunk floor covering and rear cargo area cover, both side covers, the scuff panel (by pulling out at the bottom then up), push fasteners on the top of the lower sidewall trim (using a small flathead screwdriver), the cargo hook and bolt inside the mounting hole for the hatch security visor (using a 10 mm socket) on both driver and passenger sides, and the lower side wall trim panels (using a panel trim removal tool).
S3 is located behind the driver side rear access panel. S4 is located behind the passenger side rear access panel. These are the primary wiring locations where you will connect the custom harness to your vehicle's taillight wiring.
On the driver side, locate the taillight wiring harness connectors (which will be similar to those on your new custom wiring product). Separate the connectors from the taillight housing, taking care not to damage the locking tabs. Insert the custom wiring end with the yellow wire between the separated connectors. Make sure the connectors are fully inserted with locking tabs in place. Repeat this process on the passenger side using the wiring end with the green wire.
Locate a flat spot inside the vehicle near the taillight. Adhere the black converter box using the provided double-sided tape. The area should be clean and flat to ensure the tape adheres properly.
Locate a suitable grounding point near the converter box connector, such as an existing screw with nut in the vehicle frame. If no suitable point exists, drill a 3/32" pilot hole. The area should be free of rust, dirt, and paint. Secure the white ground wire using the ring terminal and the provided screw. Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury.
Route the black 12-gauge power wire from the vehicle battery to the converter, taking care to avoid any 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 power wire from sharp edges. Secure the power wire to the vehicle chassis using the provided cable ties. The power wire should be routed to the positive battery terminal with a ring terminal connection.
Install the 10-amp fuse in the fuse holder only after all other installation steps are complete. Do not install the fuse until you have routed all wiring, connected the ground wire, and are ready to test the system.
Drilling may be required only if no suitable existing grounding point is available near the converter box connector. If you must drill, create a 3/32" pilot hole in the vehicle frame. The area should be free of rust, dirt, and paint. Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury.
The maximum fuse rating is 10 amps. The battery connection must be fuse-protected with a 10-amp max fuse. Exceeding this rating can cause loss of warranty, overheating, and potential fire.
Signal circuits (left and right turn): 3.0 amps per side. Tail/Running circuits: 6.0 amps total. Do not exceed the product rating or your tow vehicle's lamp load rating, whichever is lower.
The power wire is 12-gauge (12 GA) or larger. This wire connects from the vehicle battery to the converter system.
Yellow wire: left turn signal. Green wire: right turn signal. Red wire: brake signal. Brown wire: taillight (running lights). These wires connect to your vehicle's taillight wiring harness to transmit the appropriate signals to a trailer.
The white ground wire provides a ground connection from the converter box to the vehicle frame. It has a ring terminal on one end and must be secured to the vehicle body using the provided screw, either at an existing screw with nut in the vehicle frame or in a 3/32" pilot hole drilled in a clean, rust-free area.
After connecting the 12-volt power wire to the harness, verify that the harness is functioning by attaching the battery and testing with a test light, 4-flat tester, or a functioning trailer. This test should be performed before fully reassembling all interior panels and components.
When in use, route the 4-flat connector to the center of the vehicle and out of the trunk. When not in use, roll it up and store it in a convenient, out-of-the-way location inside the trunk. Secure any loose wires with the provided cable ties.
The manual does not specify a maximum product rating in terms of trailer weight or towing capacity. However, you must not exceed the product rating or your tow vehicle's lamp load rating, whichever is lower. Consult your vehicle's owner's manual or contact the vehicle manufacturer for specific lamp load rating information.
If you are using the converter as a powered module for a two-wire system, the red brake wire must be grounded. Consult the specific wiring diagram for your vehicle configuration or contact CURT for guidance on two-wire system installations.
After installation, test the harness for proper function using a test light, 4-flat tester, or a functioning trailer before fully reassembling all interior panels. Verify that all wiring connections are secure and that the converter box is firmly adhered. Ensure the ground wire is securely fastened and that all cable ties are properly securing loose wires. Reinstall all items removed during installation.
Periodic inspection of all wires and connections should be performed to ensure there is no visible damage or loose connections. Check the system regularly, especially before towing, to maintain safe operation.
Yes. Install the provided 4-flat dust cover to help prevent corrosion of the connector when it is not in use.
The CURT 56434 is designed for SUVs and vans with 12-volt negative ground electrical systems. Check your vehicle's owner's manual to confirm it has a 12-volt negative ground system. The manual does not list specific vehicle models or years.
Yes. Disconnect the negative battery terminal before beginning installation and reconnect it only after all other steps are complete and the system has been tested.
First, verify that the harness is functioning by testing with a test light, 4-flat tester, or a functioning trailer. Check that the 10-amp fuse is installed in the fuse holder and is not blown. Verify that the negative battery terminal is properly connected. Inspect all wiring connections, especially where the custom wiring harness connects to the taillight connectors, to ensure they are fully inserted with locking tabs in place. Check that the white ground wire is securely fastened to the vehicle frame and that the connection point is free of rust and corrosion. Verify that the black power wire is properly connected to the positive battery terminal with a ring terminal. If the issue persists, consult the vehicle's owner's manual or contact CURT for additional support.
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