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Includes harness, 4-flat extension, mounting bracket and hardware
Includes harness, 4-flat extension, mounting bracket and hardware
Warranty: One-Year Limited Warranty
Installation Difficulty: Novice
Installation Time Exact (Minutes): 60
Towing your vehicle behind your RV is a great way to experience more of the adventure on your cross-country excursions. Whether you're towing a compact car or a full-size truck, CURT has the perfect solution to help you Bring It! CURT towed-vehicle RV harnesses are a vehicle-specific, plug-and-play solution to wiring your vehicle for dinghy towing. They use original-equipment-compatible connectors to plug into your vehicle's wiring system without any cutting, splicing or soldering required. They provide a standard 4-way flat connector to plug into the RV socket and synchronize the vehicle's tail lights, turn signals and brake lights with the RV's. Because each towed-vehicle RV harness has a vehicle-specific design, installation is fast and easy. This particular RV dinghy towing wiring harness is designed for specific years of the Jeep Wrangler JK. CURT RV harnesses are also built to provide long-lasting operation. They feature integrated block diodes that protect the vehicle's circuits from the RV signals. They isolate the sensitive vehicle electronics, keeping them from overheating and short circuiting. Every CURT towed-vehicle RV harness comes ready to install with all necessary hardware included. They also come with a 4-way flat extension to provide plenty of length to plug into the RV socket, as well as a connector mounting bracket to mount the connector on the vehicle.
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 |
|---|---|---|
| 2007 - 2017 | Jeep Wrangler | Excluding right hand drive |
| 2018 | Jeep Wrangler JK | Excluding right hand drive |
The CURT Custom Towed-Vehicle RV Wiring Harness, Select Jeep Wrangler JK Trailer Connector Kit (Part #BKDK58903) fits the following vehicles: 2007-2017 Jeep Wrangler; 2018 Jeep Wrangler JK. Always verify your specific year, make, and model before ordering.
The CURT Custom Towed-Vehicle RV Wiring Harness, Select Jeep Wrangler JK Trailer Connector Kit (Part #BKDK58903) fits 2007-2017 Jeep Wrangler models. The 2018 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the CURT Custom Towed-Vehicle RV Wiring Harness, Select Jeep Wrangler JK Trailer Connector Kit (Part #BKDK58903) is designed to fit the 2007-2017 Jeep Wrangler.
The CURT Custom Towed-Vehicle RV Wiring Harness, Select Jeep Wrangler JK Trailer Connector Kit (Part #BKDK58903) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
Part 58903 is a CURT RV harness wiring kit designed for SUVs and vans. It provides electrical connections for towing, with signal circuits rated at 7.5 amps per side and tail/running circuits rated at 7.5 amps total. The kit includes a 4-flat connector, wiring harness with color-coded ends (yellow for driver side, green for passenger side), grounding wire, mounting bracket, cable ties, cable tie pad, and a 4-flat dust cover.
The CURT 58903 is designed for SUVs and vans. The manual does not specify individual vehicle makes, models, or years. Consult the product listing, fitment database, or contact CURT directly to confirm compatibility with your specific vehicle.
You will need a Phillips screwdriver, fishwire, and a utility knife. These are the only tools listed as required. The installation is rated as moderate difficulty.
The manual confirms that included parts are provided but does not itemize them in detail. Based on the installation steps, the kit includes: RV harness with color-coded ends (yellow and green wires), white ground wire with ring terminal, 4-flat connector, mounting bracket, screws for the bracket and grounding point, cable ties, cable tie pad, and a 4-flat dust cover.
The manual does not explicitly require battery disconnection before starting installation. However, Step 11 states 'If it was disconnected at the beginning of the installation, reconnect the negative battery terminal,' implying disconnection is optional but recommended. For safety when working with vehicle electrical systems, consider disconnecting the negative battery terminal before beginning.
Yes. Step 1 requires you to remove the screws securing the taillight assembly to the vehicle on the driver side. Step 2 requires you to gently pull the taillight away and locate the factory wiring harness connectors. This process is repeated on the passenger side in Step 7.
Yes, drilling is required in multiple locations. Step 4 requires drilling a 3/32" pilot hole for the grounding screw. Step 7 requires either removing the plastic taillight cover or drilling a 2" hole through it to route the RV harness behind the passenger taillight. Step 10 requires drilling two 3/32" holes in the front frame rail to mount the 4-flat bracket. Before drilling, check for hidden items behind or under surfaces to avoid damage.
Two different hole sizes are required: 3/32" pilot holes (for the grounding screw in Step 4 and for the bracket mounting screws in Step 10), and a 2" hole through the plastic taillight cover to route the RV harness behind the passenger taillight (Step 7). The manual warns not to drill through the vehicle body or any exposed surface.
Yes. Step 3 requires removing the foam shield from the taillight cavity on the driver side to insert the RV harness. Step 7 states that the insulating foam in the taillight cavity will need to be partially removed on the passenger side as well.
On the driver side (Step 3), insert the RV harness end with the yellow wire between the separated factory connectors. Make sure the connectors are fully inserted with locking tabs in place. Repeat this process on the passenger side (Step 7) using the harness end with the green wire. The connectors should be similar to those on the RV harness.
Step 8 requires inserting a fishwire through the frame rail from an opening near the driver-side front tire back towards the rear tire. Secure the 4-flat connector to the fishwire and pull it through the frame rail and out of the opening. Step 9 routes the 4-flat into the engine compartment following the brake lines and secures it to the eyelet. Alternatively, Step 9 notes you can route the 4-flat along the outside of the frame rail, which skips Step 10. Avoid areas with moving parts, sharp edges, or heat sources.
The cable tie pad is a mounting component used to secure the RV harness conduit to the rear frame rail. Step 6 requires mounting the cable tie pad halfway across the frame rail and using the provided cable ties to secure the conduit to both the frame rail and the cable tie pad. The manual recommends using five cable ties total: two on either side and one on the cable tie pad.
If routing through the frame rail (Step 9), secure the 4-flat to the eyelet in the engine compartment. If using the alternate outside route, skip Step 10. If routing through the frame rail, Step 10 requires locating the front frame rail that crosses the front of the vehicle, marking two holes using the bracket as a template, drilling two 3/32" holes, and attaching the bracket using the two remaining screws. Then secure the 4-flat to the frame rail with a cable tie.
Step 4 requires locating a suitable grounding point near the 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 the provided screw.
Step 5 requires cutting the cable ties on the 4-flat portion of the RV harness and routing the RV harness end with the green wire to the passenger side along the rear frame rail. Step 6 requires mounting the cable tie pad halfway across the frame rail and securing the conduit to the frame rail and cable tie pad using the provided cable ties. The manual recommends using five cable ties total along the rear frame rail: two on either side and one on the cable tie pad.
Step 11 states to secure any excess wire so that it is not drooping or dangling, but not so tight that it causes unnecessary strain to the wire, which could lead to breakage over time. After removing slack from the 4-flat wire, tighten any cable ties and add as needed.
Step 11 requires securing any excess wire so that it is not drooping or dangling. Use a cable tie to fasten any excess wire to a solid spot along the driver-side inner fender. Do not secure the wire so tightly that it causes unnecessary strain, which could lead to breakage over time.
Signal circuits are rated at 7.5 amps per side. Tail and running circuits are rated at 7.5 amps total. Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower. For more information, check your vehicle owner's manual or contact the vehicle manufacturer.
Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. When drilling the front frame rail, take care not to drill through the vehicle body or any exposed surface. When routing the 4-flat harness to the front of the vehicle, avoid areas that contain moving parts or could cut, pinch, or burn the wires, as failure to follow these warnings may cause property damage, personal injury, or loss of life.
Step 11 requires reinstalling all items removed during installation. If the negative battery terminal was disconnected at the beginning, reconnect it. Install the provided 4-flat dust cover to help prevent corrosion. Test the installation for proper function by using a test light or connecting a properly equipped tow vehicle.
Periodic inspection of all wires and connections should be performed to ensure there is no visible damage or loose connections. The manual does not specify an inspection interval. Register your purchase at warranty.curtgroup.com/surveys to provide feedback and access warranty information.
The CURT 58903 is designed for SUVs and vans. Confirm compatibility with your specific vehicle make, model, and year using the product listing, fitment database, or by contacting CURT directly.
Yes, you must remove the taillight assembly on both the driver and passenger sides to access the factory wiring connectors.
Test for proper function by using a test light or connecting a properly equipped tow vehicle. Reinstall all removed items and the 4-flat dust cover before testing.
Perform periodic inspection of all wires and connections to ensure there is no visible damage or loose connections. The manual does not specify an inspection interval.
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