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2025 - 2026 Ram 1500
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Always the correct part
We know our products
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Integrated block diodes isolate sensitive vehicle electronics from RV signals
Simple plug-and-play design eliminates the need for cutting or splicing
Connects a towed vehicle to an RV using a standard 4-way flat trailer plug
Warranty: One-Year Limited Warranty
Finish: Blank
Material: THERMOPLASTIC RUBBER
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 Ram 1500. 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®.'
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Call 888-634-9494One-year Limited
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1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2025 - 2026 | Ram 1500 | — |
The CURT 52112 Custom Towed-Vehicle RV Wiring Harness for Dinghy Towing, Fits Select Ram 1500 (Part #BKDK52112) fits 2025-2026 Ram 1500 models. The 2026 model year is the last year covered by this part number. For newer models, check for an updated version.
The CURT 52112 Custom Towed-Vehicle RV Wiring Harness for Dinghy Towing, Fits Select Ram 1500 (Part #BKDK52112) fits the following vehicles: 2025-2026 Ram 1500. Always verify your specific year, make, and model before ordering.
Yes, the CURT 52112 Custom Towed-Vehicle RV Wiring Harness for Dinghy Towing, Fits Select Ram 1500 (Part #BKDK52112) is designed to fit the 2025-2026 Ram 1500.
The CURT 52112 Custom Towed-Vehicle RV Wiring Harness for Dinghy Towing, Fits Select Ram 1500 (Part #BKDK52112) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
Part 52112 is a Curt Manufacturing RV harness with powered converter lead. It provides trailer lighting connections for trucks by routing power from the vehicle battery and taillight signals to a 4-way flat connector for towing. The system includes a powered converter module that converts the vehicle's 12-volt electrical signals to trailer-compatible outputs.
The manual states the product is for trucks and specifies it is designed for 12-volt negative ground electrical systems. However, the manual does not list specific vehicle makes, models, years, cab styles, or bed lengths. Contact Curt Manufacturing or consult a fitment database to confirm compatibility with your specific truck.
No. The powered converter lead is designed only for 12-volt negative ground systems. It cannot be used on 24-volt systems or positive ground systems.
Required tools are: ratchet, Phillips screwdriver, 6-inch extension, flat head screwdriver, Torx T-25 bit, fish wire, drill, wire cutters, test light, trim panel tool, 3/32-inch drill bit, and wire crimpers. The manual notes that proper tools will improve installation quality and reduce time required.
The manual confirms that new plastic taillight mounting pins are provided in the hardware kit (to replace OEM pins removed during installation), cable ties for securing the harness, a ground screw for the white ground wire, double-sided tape for mounting the converter, and a fuse holder with 10-amp fuse. The manual does not provide a complete itemized parts list.
Yes. Step 1 requires you to open the hood, locate the vehicle negative battery post, and disconnect it. The negative battery cable must be isolated to protect against creating an electrical system ground. This is a mandatory first step before any other work.
No, but you must open the tailgate and temporarily unhook the tailgate support cable on the driver's side to access the plastic OEM retaining pins for the taillight assembly. The manual notes that one pin is located behind the tailgate support cable. You must reconnect the tailgate support cable before removing the passenger's side taillight to prevent tailgate damage.
1. Disconnect the negative battery. 2. Open the tailgate and temporarily unhook the driver's side tailgate support cable. 3. Use a trim panel tool to carefully remove the two plastic OEM retaining pins from the driver's side taillight. 4. Use a T-25 Torx bit to remove the two taillight retaining screws. 5. Pull the taillight straight rearward and disconnect the wiring connector. 6. Repeat the process for the passenger's side, but reconnect the tailgate support cable before removing the passenger's side taillight.
On the passenger's side, route the connector with the green wire along the bumper to the taillight pocket. Take care not to route the green wire in an area that might pinch or break it. Use a fish wire to pull the connector up into the taillight pocket. Then connect the lighting harness connector with the green wire to the vehicle connector.
Repeat the same process used for the green wire installation on the passenger's side. Route the connector with the yellow wire along the bumper to the taillight pocket, taking care not to route it in an area that might pinch or break the wire. Use a fish wire to pull the connector up into the taillight pocket, then connect it to the vehicle connector.
On the driver's side, route the 4-way flat forward following the frame to the front of the vehicle. Ensure the harness is not routed to areas that might pinch, break, or cut the wire. Route it along the driver-side inner fender between the fuse box and the headlight. Remove the driver's side headlight/radiator plastic cover using a trim panel tool, then route the 4-way harness through an opening behind the headlight and down behind the inner grill area. Locate an exit point close to the grill or bumper area. Secure the harness using supplied cable ties.
Drilling may be required for the ground wire installation. Step 8 instructs you to locate an existing screw or bolt in the vehicle frame as a grounding point, or drill a 3/32-inch pilot hole if no suitable existing fastener is available. The area must be free from 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.
A 3/32-inch drill bit is required if you need to drill a pilot hole for the ground wire. This is only necessary if no existing screw or bolt is available in the vehicle frame as a grounding point.
Yes. You must remove the driver's side headlight/radiator plastic cover using a trim panel tool to route the 4-way harness through an opening behind the headlight. The manual also requires careful removal of plastic OEM retaining pins from both taillight assemblies using a trim panel tool. All removed items must be reinstalled after harness installation is complete.
The manual does not provide a torque specification. It specifies only that a T-25 Torx socket is used to remove and reinstall the two taillight mounting screws. Consult your vehicle's service manual or the taillight assembly manufacturer for the correct torque value.
The powered converter lead uses the following wire colors: green for right turn signal, red for brake, yellow for left turn signal, and brown for taillight. The white ground wire connects to the vehicle body. The black wire connects to the positive battery terminal, and the 12-gauge wire routes to the vehicle battery location.
12-gauge wire or larger is used to route power from the vehicle battery to the converter. The manual specifies 12 GA wire minimum when passing the power wire to the vehicle battery location.
A 10-amp fuse is the maximum rating. The fuse holder with 10-amp fuse is included in the kit and must be installed after all other installation steps are complete. The battery connection must be fuse-protected.
When passing the power wire through sheet metal, use an existing grommet, add a new grommet, or use silicone to protect the power wire from sharp edges. This prevents damage to the wire insulation and potential electrical failures.
T1 is located behind the driver's side taillight housing. T2 is located behind the passenger's side taillight housing. These are the primary locations where the lighting harness connectors are connected during installation.
The manual states: do not exceed the product rating or tow vehicle lamp load rating, whichever is lower. The specific product rating is not provided in the manual. Contact Curt Manufacturing or consult the product specification sheet for the exact amperage or wattage rating.
Do not lay tools across the positive battery terminal (typically marked with red covers or a red '+' symbol), as this can cause a ground short leading to sparks and/or electrical shocks. The battery connection must be fuse-protected. Disconnect the negative battery cable before wiring the power wire. Ensure the negative battery cable is isolated to protect against creating an electrical system ground. Grounding the negative cable to a metal item could damage the vehicle's electrical system.
Avoid routing wires to areas that might pinch, break, or cut the wire, as this could cause harness failure. When routing the power wire to the battery, take care to avoid pinch points and hot or rotating components. Secure the power wire to the vehicle chassis using supplied cable ties. Check for miscellaneous items that may be hidden behind or under any surface before drilling to avoid damage and personal injury.
Once the RV harness has been installed, verify it is functioning by using a test light, multimeter, or by attaching the 4-way flat to a properly wired tow vehicle. The manual requires testing to ensure the product functions properly before use.
After installation, reinstall any items removed during harness installation (such as the headlight/radiator plastic cover and taillight mounting pins). Verify the harness is functioning using a test light, multimeter, or by connecting a properly wired trailer. Ensure all wires are routed securely and not in areas that could pinch or break them.
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 prevent electrical failures.
The 52112 is designed for trucks with 12-volt negative ground electrical systems. The manual does not list specific vehicle makes, models, or years. Verify compatibility with Curt Manufacturing or a fitment database before purchasing.
You will need: ratchet, Phillips and flat head screwdrivers, 6-inch extension, Torx T-25 bit, fish wire, drill with 3/32-inch bit, wire cutters, test light, trim panel tool, and wire crimpers.
Yes. Step 1 requires disconnecting the negative battery post before any other work. The negative cable must be isolated to protect the electrical system.
12-gauge wire or larger is used for the battery connection. A 10-amp fuse is the maximum rating and must be installed after all other steps are complete.
First, verify the harness is functioning using a test light, multimeter, or by connecting a properly wired tow vehicle. Check that all wire connections are secure and not loose. Inspect all wires and connections for visible damage. Ensure the fuse is installed and rated at 10 amps maximum. Verify the negative battery cable is properly reconnected and isolated. Check that the ground wire ring terminal is securely attached to the vehicle body.
Wires can be damaged if routed to areas that might pinch, break, or cut them. The manual specifically warns against routing wires in such areas, as the resulting damage could cause harness failure. Reroute the affected wires along the frame and inner fender, securing them with supplied cable ties. Ensure wires avoid pinch points, hot components, and rotating parts. Use existing grommets or add new ones when passing wires through sheet metal.
When pushing the taillight forward into the taillight pocket, be careful not to damage any pins or mounting tabs on the taillight assembly. Ensure the lighting harness connector is fully seated before pushing the taillight in. Verify that the new plastic retaining pins (from the hardware kit) are properly installed. Check that the taillight mounting screws are not over-tightened, which could prevent proper seating.
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