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Vehicle battery connection required
Includes fuse holder and other necessary wiring components
Includes fuse holder and other necessary wiring components
Warranty: One-Year Limited Warranty
Electrical System Type: 3W
Output Type: 7-Way Round
Tail Light Circuits: 6.0 Amps
Turn and Brake Circuits: 3.0 Amps
Installation Difficulty: Professional
Installation Time Exact (Minutes): 45
CURT custom wiring connectors and harnesses are the easiest way to outfit your vehicle with a trailer wiring connection for towing. Each one is custom-fitted to work with a specific make and model. This particular 7-way RV blade socket is designed to be a custom wiring option for certain years of the Honda Pilot and Passport (see application info to verify fitment). It provides a universal trailer connection for the tail lights, brake lights, reverse lights, turn signals, electronic trailer brakes and auxiliary power. 7prong taillight wiring can be used as a replacement or new wiring and is typically used for towing fifth wheel and gooseneck trailers. This 7 way female outlet comes with all necessary hardware to establish a solid connection, as well as a dust cover to keep the connector socket clean when not in use. All CURT custom wiring connectors are made vehicle-specific for the easiest possible installation and the best fit. Some automotive manufacturers install a special socket on the vehicle to be used for vehicle-to-trailer wiring. Although this factory tow package 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. Instead of cutting, splicing and soldering into your vehicle's wiring system, the custom wiring connector uses a single OEM compatible plug and instantly provides a standard vehicle-to-trailer hitch wiring connection. To ensure long-lasting reliability, all CURT custom tconnector wiring is thoroughly tested for optimal functionality.
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
2 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2019 - 2025 | Honda Passport | Installation Time: 30-60 minutes |
| 2016 - 2022 | Honda Pilot | Installation Time: 30-60 minutes |
Yes, the CURT Custom 7-Way RV Blade, Select Honda Pilot, Passport, OEM Tow Package Required Trailer Connector Kit (Part #BKDK56421) is designed to fit the 2019-2025 Honda Passport.
The CURT Custom 7-Way RV Blade, Select Honda Pilot, Passport, OEM Tow Package Required Trailer Connector Kit (Part #BKDK56421) fits 2019-2025 Honda Passport models. The 2025 model year is the last year covered by this part number. For newer models, check for an updated version.
The CURT Custom 7-Way RV Blade, Select Honda Pilot, Passport, OEM Tow Package Required Trailer Connector Kit (Part #BKDK56421) fits the following vehicles: 2019-2025 Honda Passport; 2016-2022 Honda Pilot. Always verify your specific year, make, and model before ordering.
The CURT Custom 7-Way RV Blade, Select Honda Pilot, Passport, OEM Tow Package Required Trailer Connector Kit (Part #BKDK56421) Typical installation time is 30-60 minutes. Basic hand tools are typically all you need.
Yes, CURT part 56421 is designed for both Honda Pilot and Honda Passport SUVs. However, the installation procedure differs between the two vehicles. Honda Pilot installation follows steps 2A through 10A, while Honda Passport installation follows steps 2B through 7B. Both vehicles then proceed to the common steps 11 onwards.
The product has the following electrical ratings: signal circuits are rated at 3.0-amps per side, and tail/running circuits are rated at 6.0-amps total. 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.
Required tools are: 8mm socket, ratchet, socket extension, cutting tool, panel trim removal tool, large Phillips screwdriver, small flat head screwdriver, and impact screwdriver with large Phillips head. Proper tools will improve the quality of installation and reduce the time required.
Yes. Step 1 requires you to locate the vehicle battery using the owner's manual, then disconnect the negative battery terminal. Fasten this wire down and away from the battery when completing the installation. The powered converter lead instruction sheet also specifies: disconnect the negative battery cable before wiring the power wire.
The installation difficulty level is rated as Moderate. The manual recommends reading all instructions thoroughly before beginning and following all steps to ensure the product functions properly.
Drilling may be required for the ground connection. Step 13 instructs you to locate a suitable grounding point near the connector, such as an existing screw with nut in the vehicle frame, or drill a 3/32" pilot hole for the provided screw if no existing point is available. The area should be free of rust, dirt, and paint. A caution warns to check for miscellaneous items hidden behind or under any surface before drilling to avoid damage and personal injury.
Three fuses are required: one 10-amp (red) inline fuse installed in the fuse holder on the factory harness during the initial wiring steps, and two additional fuses installed in the engine compartment fuse panel. In Step 14, install two 20-amp (yellow) fuses in locations three and eleven, and one 30-amp (pink) fuse in location two of the fuse panel next to the brake fluid reservoir. The battery connection must be fuse-protected with a 10-amp max.
The power wire is 12 GA (12 gauge) or larger. This wire routes from the vehicle battery to the converter system. The powered converter lead instruction sheet specifies that the 12 GA wire should be routed to the vehicle battery location, taking care to avoid pinch points and hot or rotating components.
The converter output wires are: Green for right turn, Red for brake, Yellow for left turn, and Brown for taillight. These wires connect to the trailer lighting system.
The black converter box is mounted using the provided double-sided tape. Step 13 instructs you to locate a flat spot on the floor board of the vehicle and adhere the converter box using this tape. The converter should be positioned near the grounding point.
Step 12 instructs you to use a cutting tool to carefully cut the grommet, creating a large enough opening for the custom wiring harness to pass through while allowing the grommet to be pushed back into place in the vehicle body. After routing the harness, use the provided tube of silicone to seal around the custom wiring harness.
If the backup sensor housing is already connected to a harness, you will need to disconnect it. After installing the custom wiring harness to the vehicle wiring harness, reconnect the backup sensor to the single wire connector on the custom wiring harness. This allows the backup sensor to continue functioning. Make sure all connectors are fully inserted with locking tabs in place.
Routing varies by vehicle. For Honda Pilot: the white connector end routes between the vehicle floor pan and the driver-side wall, in front of the jack mount and behind the access panel (Step 8A). The round housing feeds down through the grommet under the third row seat, with the USCAR plug fitting through the oval opening sideways (Step 10A). For Honda Passport: the harness runs under the carpet and through the grommet hole, with the USCAR plug fitting through the oval opening sideways (Step 7B). For both vehicles, the wiring routes in the center of the vehicle (above the spare tire on the Pilot) and is secured with zip ties as needed before plugging into the 7-way socket connector (Step 11).
The converter system is designed for use only on 12-volt negative ground systems. The powered converter lead instruction sheet explicitly states: "This converter system is to be used only on 12 volt negative ground systems."
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. The powered converter lead instruction sheet warns: "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."
Do not lay tools across the positive terminal (typically labeled with red covers or a red "+" symbol). This can cause a ground to short, causing sparks and/or electrical shocks. Additionally, disconnect the negative battery cable before wiring the power wire to avoid accidental short circuits.
After completing all installation steps and reconnecting the negative battery terminal, verify that the harness is functioning by attaching the battery and testing with a test light, 4-flat tester, or a functioning trailer. The manual states: "Once the 12 volt power wire is connected 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."
Periodic inspection of all wires and connections should be performed to ensure there is no visible damage or loose connections. This helps maintain proper function and safety of the wiring harness.
If lights do not function, perform the following checks: (1) Verify the inline fuse is good. (2) Check the grounding location using a test light by attaching the clip end to the ground location and using the probe end on the power wire from the battery. (3) Make sure the surface around the ring terminal is raw or bare metal, free of rust, dirt, and paint. Poor grounding is a common cause of non-functioning lights.
Yes, CURT 56421 is designed for both Honda Pilot and Honda Passport. Installation procedures differ between the two vehicles, but both are fully supported.
You need: 8mm socket, ratchet, socket extension, cutting tool, panel trim removal tool, large Phillips screwdriver, small flat head screwdriver, and impact screwdriver with large Phillips head.
Yes, disconnect the negative battery terminal before beginning installation. Fasten the wire down and away from the battery.
Drilling may be required for the ground connection. You may need to drill a 3/32" pilot hole for the ground screw if no existing mounting point is available. Check for hidden items before drilling.
Install one 10-amp (red) inline fuse in the factory harness, then install two 20-amp (yellow) fuses and one 30-amp (pink) fuse in the engine compartment fuse panel locations 3, 11, and 2 respectively.
Signal circuits: 3.0-amps per side. Tail/running circuits: 6.0-amps total. Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower.
CURT 56421 is designed for 12-volt negative ground systems only.
Test with a test light, 4-flat tester, or a functioning trailer after reconnecting the battery and completing all installation steps.
Possible causes include: (1) a faulty inline fuse, (2) poor grounding connection, or (3) corroded or painted surface around the ring terminal. Check the inline fuse first. Then use a test light to verify the grounding location by attaching the clip end to the ground location and the probe end to the power wire from the battery. Ensure the surface around the ring terminal is raw or bare metal, free of rust, dirt, and paint.
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