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Warranty: One-Year Limited Warranty
Electrical System Type: 2W
Output Type: 4-Way Flat
Installation Difficulty: Advanced
Installation Time Exact (Minutes): 30
CURT custom wiring connectors are the easiest way to outfit your vehicle with a CURT trailer wiring connection. They are built with some of the most advanced technology in the industry, and each one is custom-fitted to work with a specific make and model. Some automotive manufacturers install a special socket on the vehicle to be used for vehicle-to-trailer wiring. Although this special socket is not equipped on every vehicle, a CURT custom wiring connector -- also called a T-connector -- utilizes the socket for simple, stress-free installation. Rather than requiring you to cut, splice and solder into your vehicle's wiring system, the custom wiring connector uses a single OEM-compatible plug and instantly provides a standard, universal vehicle-to-trailer wiring connection, typically in the form a 4-way flat. All CURT custom wiring connectors are made vehicle-specific for the easiest possible installation and the best fit. This particular plug-in connector provides a 4-way flat socket and is designed to be a custom wiring option for certain years of the Nissan Frontier, Nissan Pathfinder, Nissan Xterra and Suzuki Equator (to verify your vehicle compatibility, see application info). It comes with all necessary hardware to establish a solid connection. It also comes with a dust cover to keep the connector socket clean when not in use. To ensure long-lasting reliability, all CURT custom wiring connectors are thoroughly tested for optimal functionality. Stress is the last thing you should feel when towing a trailer -- whether you're hauling your RV to that favorite camping destination, your ATVs up to the hunting grounds or your fishing boat to the new hidden hotspot. At CURT, we think your towing equipment should add to the enjoyment of your experience, not detract from it.
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®.'
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Call 888-634-9494Rediscover "Us" Time | Tested. Proven. Safe. Towing Products
4 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2005 - 2026 | Nissan Frontier | Installation Time: 30-60 minutes |
| 2005 - 2012 | Nissan Pathfinder | Installation Time: 30-60 minutes |
| 2005 - 2015 | Nissan Xterra | Installation Time: 30-60 minutes |
| 2009 - 2012 | Suzuki Equator | Installation Time: 30-60 minutes |
The CURT Custom 4-Flat, Select Nissan and Suzuki Vehicles, OEM Tow Package Required Trailer Connector Kit (Part #BKDK56225) fits 2005-2026 Nissan Frontier models. The 2026 model year is the last year covered by this part number. For newer models, check for an updated version.
The CURT Custom 4-Flat, Select Nissan and Suzuki Vehicles, OEM Tow Package Required Trailer Connector Kit (Part #BKDK56225) fits the following vehicles: 2005-2026 Nissan Frontier; 2005-2012 Nissan Pathfinder; 2005-2015 Nissan Xterra; 2009-2012 Suzuki Equator. Always verify your specific year, make, and model before ordering.
Yes, the CURT Custom 4-Flat, Select Nissan and Suzuki Vehicles, OEM Tow Package Required Trailer Connector Kit (Part #BKDK56225) is designed to fit the 2005-2026 Nissan Frontier.
The CURT Custom 4-Flat, Select Nissan and Suzuki Vehicles, OEM Tow Package Required Trailer Connector Kit (Part #BKDK56225) Typical installation time is 30-60 minutes. Basic hand tools are typically all you need.
Yes, the Curt 56225 custom wiring connector is designed for Nissan Frontier, Pathfinder, and Xterra, as well as Suzuki Equator. The connector is available in two configurations: S5 for SUVs, mini and full-sized vans, and T3 for pickup trucks. Confirm which configuration matches your vehicle type before installation.
Yes, the Curt 56225 custom wiring connector is compatible with Suzuki Equator. The installation procedure is the same as for Nissan vehicles listed in the applications table.
You will need a 10mm socket. The installation kit includes cable ties and a 4-flat dust cover. No other specialized tools are required.
Yes, you must disconnect the negative battery terminal on the driver side under the hood before beginning installation. This is the first step in the installation process.
The vehicle wiring harness is located on the passenger side behind the kick panel. You will need to remove the sill plate by pulling upwards to access it. The harness connects to a 12-pin vehicle wiring connector.
Insert the custom wiring harness with relays into the vehicle 12-pin connector located behind the passenger side kick panel. Make sure the connectors are fully inserted with the locking tabs in place. Secure any loose wires with the provided cable ties.
The factory tow plug is located on the driver side along the frame rail behind the rear bumper. It will have a protective cap with locking tabs. Remove the cap carefully to avoid damaging the locking tabs.
Insert the 4-flat harness connector into the vehicle tow harness connector, making sure the locking tab is in place. The connectors should be fully seated.
Route the 4-flat harness to the center of the vehicle and secure it in a convenient out-of-the-way location using the provided cable ties. Avoid routing near sharp edges and hot exhaust areas.
Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower. Exceeding the product rating can cause loss of warranty, overheating, and potential fire. Refer to your vehicle owner's manual or contact the vehicle manufacturer for the specific lamp load rating of your vehicle.
Test for proper function by using a test light or by connecting a properly wired trailer. All steps must be followed to ensure the wiring connector functions properly.
Yes, install the provided 4-flat dust cover after reconnecting the negative battery terminal. The dust cover helps prevent corrosion of the connector.
Yes, the Curt 56225 is designed for these vehicles. Two configurations are available: S5 for SUVs and vans, T3 for pickup trucks.
A 10mm socket is needed. The kit includes cable ties and a 4-flat dust cover. No other specialized tools are required.
Yes, disconnect the negative battery terminal before starting installation.
Do not exceed the product rating or tow vehicle lamp load rating, whichever is lower. Exceeding the rating can cause overheating and potential fire.
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