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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
Color: Black
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): 45
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 Volvo XC60 (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 888-634-9494Rediscover "Us" Time | Tested. Proven. Safe. Towing Products
4 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2025 - 2026 | Volvo EX40 | Installation Time: 30-60 minutes |
| 2021 - 2026 | Volvo XC40 | Installation Time: 30-60 minutes |
| 2021 - 2024 | Volvo XC40 Recharge | Installation Time: 30-60 minutes |
| 2010 - 2017 | Volvo XC60 | Installation Time: 30-60 minutes |
The CURT Custom Wiring Harness, 4-Way Flat Output, Select Volvo XC60 Trailer Connector Kit (Part #BKDK56355) fits 2025-2026 Volvo EX40 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 Custom Wiring Harness, 4-Way Flat Output, Select Volvo XC60 Trailer Connector Kit (Part #BKDK56355) is designed to fit the 2025-2026 Volvo EX40.
The CURT Custom Wiring Harness, 4-Way Flat Output, Select Volvo XC60 Trailer Connector Kit (Part #BKDK56355) fits the following vehicles: 2025-2026 Volvo EX40; 2021-2026 Volvo XC40; 2021-2024 Volvo XC40 Recharge; 2010-2017 Volvo XC60. Always verify your specific year, make, and model before ordering.
The CURT Custom Wiring Harness, 4-Way Flat Output, Select Volvo XC60 Trailer Connector Kit (Part #BKDK56355) Typical installation time is 30-60 minutes. Basic hand tools are typically all you need.
The Curt 56355 Custom Wiring Harness is designed for Volvo XC60 models, including the 3.0L 6-cylinder turbo, 2.0L 4-cylinder turbo, and standard XC60 variants. Consult your vehicle owner's manual or contact the vehicle manufacturer to confirm your specific model year and engine configuration are compatible.
The Curt 56355 is a custom wiring harness that integrates with your Volvo XC60's taillight wiring to enable trailer lighting functions. It includes a converter box and connects to a 4-flat connector for trailer use.
You will need: ratchet, 10mm socket, flat blade screwdriver, panel trim removal tool, wire stripper, wire crimper, and cutting tool. A test light or properly wired trailer is also required to test the harness after installation.
Yes. Step 1 of the installation requires you to locate the vehicle battery on the driver side under the hood and disconnect the negative battery terminal before proceeding with any other steps.
Drilling may be required. The installation calls for a suitable grounding point near the taillight connector, such as an existing screw with nut in the vehicle frame. If no suitable existing point is available, you must drill a 3/32" pilot hole for the provided screw. Before drilling, check for hidden items behind or under surfaces to avoid damage and personal injury.
Signal Circuits are rated at 3.0 amps per side. Tail/Running Circuits are rated at 6.0 amps total. Do not exceed these product ratings or your tow vehicle's lamp load rating, whichever is lower. Exceeding the rating can cause loss of warranty, overheating and potential fire.
The battery connection must be fuse-protected with a maximum 10-amp fuse. Exceeding this rating can cause loss of warranty, overheating and potential fire.
Follow all steps in order: (1) disconnect negative battery terminal, (2) remove trunk floor coverings, (3) remove rear scuff panel, (4) locate and separate driver side taillight connectors, (5) insert custom harness yellow wire end between connectors, (6) secure white ground wire to frame, (7) route green wire end to passenger side and repeat connector steps, (8) adhere converter box with double-sided tape, (9) route battery power wire per included CME-PCL-INS sheet, (10) route 4-flat connector and secure loose wires with cable ties, (11) reinstall removed items and reconnect battery. All steps must be followed to ensure proper function.
The harness connects to the vehicle's taillight wiring connectors located behind the side trim panels. The yellow wire end connects on the driver side and the green wire end connects on the passenger side. Both ends insert between the separated taillight connectors, with locking tabs fully engaged.
Locate a suitable grounding point near the taillight connector, such as an existing screw with nut in the vehicle frame. If no suitable point exists, drill a 3/32" pilot hole for the provided screw. The area must be free of rust, dirt and paint. Secure the white ground wire using the ring terminal and provided screw. Before drilling, check for hidden items behind or under surfaces to avoid damage.
Locate a flat spot inside the vehicle near the taillight and adhere the black converter box using the provided double-sided tape.
After installation, test for proper function by using a test light or connecting a properly wired trailer. All steps must be followed to ensure the wiring harness functions properly before relying on it.
The Curt 56355 includes a custom wiring harness with yellow and green wire ends, a black converter box, a white ground wire with ring terminal, a provided screw for grounding, double-sided tape for mounting the converter box, cable ties for securing loose wires, and a 4-flat dust cover to help prevent corrosion.
Do not exceed the product rating: Signal Circuits 3.0 amps per side, Tail/Running Circuits 6.0 amps total. Also do not exceed your tow vehicle's lamp load rating, whichever is lower. Exceeding these limits can cause loss of warranty, overheating and potential fire.
When not in use, roll up the 4-flat connector and store it in a convenient, out-of-the-way location. Secure any loose wires with the provided cable ties.
Yes, the Curt 56355 is designed for Volvo XC60 models including 3.0L 6-cylinder turbo, 2.0L 4-cylinder turbo, and standard variants. Confirm your specific model year with the vehicle manufacturer.
You need: ratchet, 10mm socket, flat blade screwdriver, panel trim removal tool, wire stripper, wire crimper, and cutting tool. A test light or properly wired trailer is required for post-installation testing.
The battery connection must use a 10-amp maximum fuse. Do not exceed this rating as it can cause overheating and fire.
Signal Circuits: 3.0 amps per side. Tail/Running Circuits: 6.0 amps total. Do not exceed these ratings or your vehicle's lamp load rating, whichever is lower.
Yes, disconnect the negative battery terminal before starting installation. Reconnect it only after all other steps are complete.
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