24-24 Mazda CX-90 CURT 4-flat Plug and Play Trailer WiringCURTOriginal price was $123.90. Current price is $114.75.Out of Stock
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2020 - 2024 Mazda CX-30
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| Side Application Type Description | Blank |
| T-Connector Location | P3,P4 |
| Tail Light Circuits | 7.5 Amps |
| Turn and Brake Circuits | 5.0 Amps |
| Warranty | One-Year Limited Warranty |
| Battery-Powered | Yes |
| Converter Type | Circuit Protected, Powered, Potted |
| Electrical System Type | 3W |
| Finish | N/A |
| Material | THERMOPLASTIC RUBBER |
| Mount Type Description | Blank |
| Output Type | 4-Way Flat |
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 888-634-94941 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2020 - 2024 | Mazda CX-30 | — |
The 20-24 Mazda CX-30 CURT 4-flat Plug and Play Trailer Wiring (Part #CTW1807) fits 2020-2024 Mazda CX-30 models. The 2024 model year is the last year covered by this part number. For newer models, check for an updated version.
The 20-24 Mazda CX-30 CURT 4-flat Plug and Play Trailer Wiring (Part #CTW1807) fits the following vehicles: 2020-2024 Mazda CX-30. Always verify your specific year, make, and model before ordering.
Yes, the 20-24 Mazda CX-30 CURT 4-flat Plug and Play Trailer Wiring (Part #CTW1807) is designed to fit the 2020-2024 Mazda CX-30.
The 20-24 Mazda CX-30 CURT 4-flat Plug and Play Trailer Wiring (Part #CTW1807) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
Yes, the Curt 56450 powered converter is designed for Mazda 3 Sedan, Mazda 3 Hatchback, and Mazda CX-30. Installation procedures differ slightly between the Sedan and Hatchback versions, so follow the steps specific to your vehicle model. The manual provides separate instructions for each variant.
The Curt 56450 has the following electrical ratings: Signal circuits are rated at 5.0 amps per side, and Tail/Running circuits are rated at 7.5 amps total. The battery connection must be fuse-protected with a 15-amp maximum fuse. Do not exceed the product rating or your tow vehicle's lamp load rating, whichever is lower, as exceeding this can cause loss of warranty, overheating and potential fire.
The following tools are required: ratchet, cutting tool, 10mm socket, wire crimper, socket extension, wire stripper, flathead screwdriver, trim panel removal tool, and electrical tape. Proper tools will improve the quality of installation and reduce the time required.
Yes, you must disconnect the negative battery terminal before beginning installation. Locate the vehicle battery (refer to your vehicle owner's manual if needed), disconnect the negative terminal, and fasten this wire down and away from the battery. Reconnect it only after all other installation steps are complete and the 12-volt power wire has been connected to the harness.
Pull back the felt side-wall of the hatch/trunk to locate the vehicle taillight wiring connectors. The connectors will be similar to those on the custom wiring product. For Mazda 3 Hatchback and CX-30, you may need to remove cover panels first. Separate the connectors from the taillight housing carefully, taking care not to damage the locking tabs.
Separate the vehicle's taillight connectors from the taillight housing, taking care not to damage the locking tabs. Insert the custom wiring end with the yellow wire between the separated connectors. Make sure the connectors are fully inserted with locking tabs in place. This procedure is performed on both the driver side and passenger side of the vehicle.
The black converter box is the powered converter module that processes the trailer signals. Locate a flat spot inside the vehicle near the taillight and adhere the converter box using the provided double-sided tape. Ensure it is mounted securely in a location where it will not be disturbed.
The harness uses the following wire colors: Green for right turn signal, Red for brake, Yellow for left turn signal, and Brown for taillight. The custom wiring ends with yellow wire connect to the vehicle taillight connectors on both sides. The green wire is routed to the passenger side. The black power wire connects to the vehicle battery positive terminal, and the white ground wire connects to the vehicle body.
Route a 12 GA wire or larger from the vehicle battery to the converter, taking care to avoid pinch points and hot or rotating components. Use an existing grommet, add a grommet, or use silicone to protect the power wire from sharp edges when passing through sheet metal. Connect the black power wire to the positive battery terminal using a ring terminal (provided). Secure the power wire to the vehicle chassis using the provided cable ties. Install the 15-amp fuse holder after all other steps are complete. Refer to the Power Converter Lead Instruction Sheet on page 6 for detailed routing guidance.
Attach the ring terminal of the white ground wire to the vehicle body using the screw provided. If necessary, drill a 3/32" hole to secure the ground connection. This ensures proper grounding of the converter system.
Use a 15-amp maximum fuse. The battery connection must be fuse-protected with a 15-amp fuse holder. Install the fuse after all other installation steps are complete. Exceeding this fuse rating can cause loss of warranty, overheating and potential fire.
When in use, route the 4-flat to the center of the vehicle and out of the trunk. When not in use, roll it up and store in a convenient, out-of-the-way location inside the trunk. Secure any loose wires with the provided cable ties. Install the provided 4-flat dust cover to help prevent corrosion.
After the 12-volt power wire is connected to the harness, verify the harness is functioning by attaching the battery and testing with a test light, 4-flat tester, or a functioning trailer. This confirms that all connections are correct and the converter is operating properly before regular use.
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 prevents electrical issues over time.
Do not exceed the product rating or your tow vehicle's lamp load rating, whichever is lower. For specific lamp load ratings, check your vehicle owner's manual or contact the vehicle manufacturer. Exceeding the product rating can cause loss of warranty, overheating and potential fire.
Yes, for all Mazda 3 and CX-30 models, you must open the vehicle's hatch/trunk and remove the floor coverings from the spare tire and security cover (hatchback vehicles only) before beginning installation. This provides access to the taillight wiring connectors and interior trim components.
For Mazda 3 only, you must remove the skid plate. Using the trim panel removal tool, release the two push fasteners in the skid plate, then loosen and remove the skid plate itself. This provides access to the side panel fasteners and taillight wiring connectors. The Mazda CX-30 does not require skid plate removal.
On the driver side, use the trim panel removal tool to loosen the plastic trim at the top of the felt side-wall. Remove the single push fastener located right beneath the loosened trim piece. Under the skid plate, remove the two push fasteners securing the side panel to the vehicle. Repeat this process on the passenger side. For the passenger side, you may also need to remove a cover panel and pull back sound dampening material to expose the taillight harness.
On both the driver and passenger sides, under the skid plate, remove the push fastener securing the side panel to the vehicle. This is a simpler process than the Hatchback version. Once the side panels are removed, pull back the felt side-wall to locate the taillight wiring connectors.
On the driver side, use the trim panel removal tool to loosen the plastic trim at the top of the felt side-wall. Remove the two push fasteners located right beneath the loosened trim piece. Under the skid plate, remove the two push fasteners securing the side panel to the vehicle. Using a flathead screwdriver, open the cargo tie-down fastener cover. Using a 10mm socket, remove the tie-down on the side-wall and any in the rear trunk area. Repeat this entire process on the passenger side. For the passenger side, you will also need to remove three push fasteners (one on the floor and two at the top) securing a cover panel to access the taillight connectors.
The installation is rated as 'Easy' in difficulty level, based on time and effort involved. However, difficulty may vary depending on the installer's level of expertise, the condition of the vehicle, and having proper tools and equipment. The manual provides detailed step-by-step instructions for all three vehicle models (Mazda 3 Sedan, Mazda 3 Hatchback, and Mazda CX-30).
Drilling may be required only for the ground wire connection. You may need to drill a 3/32" hole to attach the white ground wire ring terminal to the vehicle body using the provided screw. However, if a suitable existing hole is available, drilling is not necessary. No other drilling is required for the main harness installation.
No permanent modifications are required. The converter box is mounted using provided double-sided tape, which is removable. The wiring is routed through existing interior spaces and connected to factory taillight connectors without cutting or permanently altering vehicle components. The only potential permanent modification is drilling a 3/32" hole for the ground wire if no existing hole is suitable, but this is a small, non-structural hole.
The Curt 56450 is designed for use only on 12-volt negative ground systems. Verify that your Mazda 3 or CX-30 has a 12-volt negative ground electrical system before installation. If you are unsure, consult your vehicle owner's manual.
Yes, the Curt 56450 is designed for Mazda 3 (Sedan and Hatchback) and Mazda CX-30. Installation procedures differ slightly by model, so follow the steps specific to your vehicle.
Use a 15-amp maximum fuse for the battery connection. Install the fuse after all other steps are complete.
Signal circuits: 5.0 amps per side. Tail/Running circuits: 7.5 amps total. Do not exceed the product rating or your vehicle's lamp load rating, whichever is lower.
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