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| Tongue Weight (TW) | 200 LB |
| Warranty | Limited Lifetime Warranty (One-Year Finish, One-Year Parts) |
| Weight Carrying Capacity (WC) | 2,000 LB |
| Finish | GLOSS BLACK POWDER COAT |
| Main Body Shape | Square |
| Material | Carbon Steel |
| Mount Type Description | Not Applicable |
| Receiver Tube Size | 1-1/4 IN |
| Side Application Type Description | Not Applicable |
| 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 |
| Ball Diameter | 2 IN |
| 10282 | Yes |
| Color | Black |
| Drop | 2 IN |
| Gross Trailer Weight (GTW) | 7,500 LB |
| Material | Carbon Steel |
| Receiver Tube Size | 2 IN |
| Shank Diameter | 2 IN |
| Tongue Weight (TW) | 750 LB |
| Truckload Dom Pickup Location | Eau Claire, Wi |
| Warranty | Limited Lifetime Warranty (One-Year Finish, One-Year Parts) |
Notes:
Notes:
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 888-634-9494Lifetime
1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2007 - 2015 | Mazda CX-9 | — |
The 07-15 Mazda CX-9 2 CURT Trailer Hitch + Assure Proportional Brake Controller Kit HBCW1806 (Part #HBCW1806) fits the following vehicles: 2007-2015 Mazda CX-9. Always verify your specific year, make, and model before ordering.
Yes, the 07-15 Mazda CX-9 2 CURT Trailer Hitch + Assure Proportional Brake Controller Kit HBCW1806 (Part #HBCW1806) is designed to fit the 2007-2015 Mazda CX-9.
The 07-15 Mazda CX-9 2 CURT Trailer Hitch + Assure Proportional Brake Controller Kit HBCW1806 (Part #HBCW1806) fits 2007-2015 Mazda CX-9 models. The 2015 model year is the last year covered by this part number. For newer models, check for an updated version.
The 07-15 Mazda CX-9 2 CURT Trailer Hitch + Assure Proportional Brake Controller Kit HBCW1806 (Part #HBCW1806) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The kit includes: one 30 amp auto-resetting circuit breaker, two #10 ring terminals, two 3/8" ring terminals, two 1/2" ring terminals, three 12-10 gauge butt connectors, 10 feet of 10 ga black/white duplex wire, 20 feet of 10 ga blue cross-linked wire, and eight 8.5" cable ties.
Yes, but with a critical difference: these vehicles require the stop signal wire to be spliced to the light green wire on the turn signal harness connector under the dash, not to the brake pedal switch. Do NOT connect to the red wire with green stripe, as serious damage may occur. All other vehicles connect to the brake pedal switch instead.
You will need: a test light, wire stripper/cutter, crimp tool, and 3/8" box end wrench. The test light is used to identify the cold (switched) side of the brake pedal switch.
Yes. The manual cautions to disconnect the tow vehicle's negative battery cable before installation. Reconnect it only in the final step after all wiring is complete.
Mount the 30 amp circuit breaker near the tow vehicle's positive battery terminal. This keeps the power wire run as short as possible and protects the circuit.
Use 10 gauge (10 ga) black wire from the duplex wire included in the kit. Strip 3/8" of insulation from each end. Crimp a #10 ring terminal to the end that attaches to the circuit breaker stud labeled 'BAT', and a 3/8" or 1/2" ring terminal (sized to fit your battery terminal) to the end that attaches to the positive battery terminal.
Feed the 10 ga duplex wire from the brake controller in the cockpit through the firewall into the engine compartment toward the battery. Cut to length as needed. At the battery end, crimp a 3/8" or 1/2" ring terminal to the white wire and a #10 ring terminal to the black wire. Attach the black wire to the circuit breaker stud labeled 'AUX' and tighten the nut with a 3/8" box end wrench.
When passing the duplex wire through the firewall into the engine compartment, use an existing grommet, add a new grommet, or fill the hole with silicone rubber to insulate and protect the wire. The same protection applies when passing the blue cross-linked wire through any sheet metal at the rear of the vehicle.
In the cockpit, attach the black duplex wire to the brake controller's battery wire (typically black) and the white duplex wire to the brake controller's ground wire (typically white). Use either one of the supplied yellow butt connectors or solder the leads together and insulate with heat shrink tubing.
Locate the brake pedal switch on the back side of the vehicle's brake pedal. Use a test light or volt meter to identify the 'cold' or switched side—this terminal will only show power when the brake pedal is depressed. Attach the stop signal wire (typically red) from the brake controller to the cold side of the switch using a wire tap.
Locate the semi-circle turn signal harness connector on the steering column under the dash. It has two rows of wires: a row of four and a row of seven. Attach the stop signal wire (typically red) from the brake controller to the light green wire using a wire tap. Do NOT connect to the red wire with green stripe, as serious damage may occur.
Feed the 10 ga blue cross-linked wire from the brake controller to the trailer connector at the rear of the vehicle, taking up any slack in the wire. When passing through any sheet metal, use an existing grommet, add a new grommet, or fill the hole with silicone rubber to protect the wire.
Attach the blue cross-linked wire to the brake controller's electric brake wire (typically blue) using one of the supplied yellow butt connectors or by soldering and insulating with heat shrink tubing. At the rear of the vehicle, trim any loose blue wire and attach it to the trailer connector's electric brake terminal. Refer to the trailer connector's wiring diagram for the correct terminal location.
Secure any loose wires with the cable ties provided. Connect the black power wire from the circuit breaker to the positive side of the battery. Connect the white ground wire from the brake controller to the negative side of the battery. Finally, reconnect the tow vehicle's negative battery cable to the battery.
The circuit breaker is 30 amps and auto-resetting. It must be mounted near the positive battery terminal and connected directly to the positive battery terminal via the included black 10 gauge wire.
Use a 3/8" box end wrench to tighten the nuts on the circuit breaker studs labeled 'BAT' and 'AUX'.
The kit includes 10 feet of 10 gauge black/white duplex wire for the battery and brake controller connections, and 20 feet of 10 gauge blue cross-linked wire for the electric brake signal to the trailer connector.
Black wire connects to the positive battery and circuit breaker. White wire connects to the brake controller ground and negative battery. Red wire is the stop signal wire from the brake controller. Blue wire is the electric brake signal wire. The manual notes these are 'typically' these colours but recommends confirming with your brake controller documentation.
Yes. You can solder the leads together and insulate with heat shrink tubing as an alternative to using the supplied yellow butt connectors. This applies to connections between the duplex wire and the brake controller wires, and between the blue cross-linked wire and the brake controller.
The black power wire must connect directly to the positive battery terminal via the 30 amp circuit breaker. Connecting to the fuse panel or any other accessory wiring may damage vehicle wiring and cause trailer brake failure. The circuit breaker protects the circuit and must be the only protection between the battery and the brake control system.
Do NOT connect the stop signal wire to the red wire with green stripe on the turn signal harness. Serious damage may occur. Connect only to the light green wire. Also, do not connect to the brake pedal switch on these vehicles; use the turn signal harness instead.
The kit is universal but requires an existing trailer connector and brake controller. 1989-1991 Ford E & F-Series with ABS use a different stop signal connection (turn signal harness instead of brake pedal switch). Consult your brake controller documentation for compatibility.
No drilling is required. The kit connects to existing components: the battery, brake controller, brake pedal switch (or turn signal harness on 1989-1991 Ford E & F-Series with ABS), and trailer connector.
Do NOT connect the stop signal wire to the red wire with green stripe on the turn signal harness—serious damage may occur. Connect to the light green wire instead, and do not use the brake pedal switch.
Connecting to the fuse panel or accessory wiring may damage vehicle wiring and cause trailer brake failure. The 30 amp circuit breaker must be the only protection between the battery and the brake control system.
Yes, CURT part number 11599 is designed for 2020-present Mazda CX-30 Crossover models. Verify your vehicle year and model match before purchasing.
The CURT 11599 is rated for a maximum trailer weight of 2,000 lbs. and a tongue weight of 200 lbs. when used as a weight-carrying hitch. You must not exceed your vehicle manufacturer's recommended towing capacity.
The manual does not provide the hitch weight specification.
You will need: a die grinder, ratchet, 3/4" socket, 6" socket extension, torque wrench, utility knife, and safety glasses. The manual rates this as an easy to moderate difficulty installation.
The kit includes: (4) 1/2" fishwires, (4) .250 x 1.00 x 3.00" square hole spacers (part CM-SP6), (4) 1/2"-13 UNC grade 8 carriage bolts 1-1/2" long (part 10-10287), and (4) 1/2"-13 UNC grade 8 serrated flange nuts (part 20-00062).
The manual does not specify whether battery disconnection is required. Contact CURT technical support at 877-287-8634 for clarification.
Two people may be required to ease installation. The manual recommends reading all instructions thoroughly before beginning and using proper tools to improve installation quality.
No, drilling is not required. However, you must use a die grinder to enlarge the third hole from the back of the vehicle on both sides of the frame rail to accommodate the supplied spacers and carriage bolt heads. Excess sealer should be removed with a utility knife if present.
No, fascia trimming is not required for this installation.
Yes, you must temporarily lower the exhaust by unhooking the (4) rubber isolators from the muffler. Support the exhaust so it is not damaged. After the hitch is installed and fasteners are torqued, raise the exhaust back into position and reinstall the (4) rubber isolators.
Fishwiring is a technique using the supplied 1/2" fishwires to thread carriage bolts and spacers through the frame holes before raising the hitch into position. You must fishwire (2) 1/2" carriage bolts and (2) square hole spacers into the first and second holes on both sides of the frame rail. This allows the bolts to be in place when you raise the hitch over the exhaust.
Carefully raise the hitch into position over the exhaust and onto the carriage bolts. Loosely install the supplied hex flange nuts. Push the hitch as far rearward on the vehicle as possible to give maximum clearance to the muffler and exhaust components.
All 1/2" fasteners must be torqued to 110 lb.-ft. This includes the carriage bolts and hex flange nuts.
Safety glasses must be worn at all times while installing this product.
All non-trailer (wheel-less) loads applied to this hitch must be supported by CURT part number 18050 stabilizing straps. Failure to properly support non-trailer loads will void the product warranty. See the CURT catalog or visit www.curtmfg.com for further information.
You must never exceed your vehicle manufacturer's recommended towing capacity. The CURT 11599 is rated for 2,000 lbs. trailer weight and 200 lbs. tongue weight, but your vehicle's limits may be lower. Always follow your Mazda CX-30 owner's manual for towing specifications.
Periodically check the receiver hitch to ensure all fasteners are tight and all structural components are sound. This is an ongoing maintenance requirement, not a one-time check.
The manual states you should periodically check the receiver hitch to ensure all fasteners are tight and all structural components are sound, but does not specify an exact interval. Regular inspection before towing is recommended.
CURT Manufacturing warrants this product to be free of defects in material and workmanship at the time of retail purchase by the original purchaser. If defective, CURT may repair or replace the product at their option when returned prepaid with proof of purchase. Alteration, misuse, or improper installation voids the warranty. CURT's liability is limited to repair or replacement and excludes incidental or consequential loss or damage.
Yes, the CURT 11599 is designed for 2020-present Mazda CX-30 Crossover models.
Maximum trailer weight is 2,000 lbs. and tongue weight is 200 lbs. Do not exceed your vehicle manufacturer's recommended towing capacity.
No drilling is required, but you must use a die grinder to enlarge existing holes on both frame rails to fit the spacers and bolt heads.
You will need a die grinder, ratchet, 3/4" socket, 6" socket extension, torque wrench, utility knife, and safety glasses.
All 1/2" fasteners must be torqued to 110 lb.-ft.
All non-trailer (wheel-less) loads must be supported by CURT part number 18050 stabilizing straps, or the warranty is voided.
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.
The 4-way flat electrical adapter converts a vehicle's 4-way flat trailer connector to other trailer connector types (6-way round, 7-way RV blade, or dual 4-way flat). This allows you to tow trailers with different connector styles. Single-output models (57184, 57183, 57185, 57626, 57676) convert to one connector type; dual-output models (57604, 57624, 57672, 57674, 57102) provide two different connector outputs simultaneously.
Yes. Your vehicle must be equipped with a 4-way flat trailer connector. If your vehicle does not have one, you will need to install a custom wiring harness or other 4-way flat trailer connector before installing this adapter.
Both convert a 4-way flat connector to a 7-way RV blade. The difference is that 57185 includes a mounting bracket, while 57184 does not.
Both convert a 4-way flat connector to a 6-way round. The difference is that 57626 includes a mounting bracket, while 57183 does not.
Curt offers three dual-output models that provide both a 4-way flat and a 7-way RV blade output: part numbers 57672, 57674, and 57102. All three include a mounting bracket.
Curt offers two dual-output models that provide both a 4-way flat and a 6-way round output: part numbers 57604 and 57624. Both include a mounting bracket.
You will need: a 1/8" drill bit, drill, Phillips screwdriver, wire stripper, cutting tool, terminal crimpers, and a test light. The manual also lists three self-tapping screws (#10 - 1/2") as required, though these are not included with the product.
No. The three self-tapping screws (#10 - 1/2") used to attach the mounting bracket are not included and must be purchased separately.
Mount the combination harness in a location on the tow vehicle that is within reach of the trailer's wiring harness and near the center of the vehicle. The mounting bracket (if included) should be attached to the vehicle's bumper or other suitable surface.
Yes. You must drill two 1/8" holes: one for the grounding point and one (or more) for the mounting bracket. Before drilling, you must check for brake lines, fuel lines, wiring and other components that may be hidden behind or under the surface to avoid damage.
No. You must never attach the mounting bracket directly to the hitch by cutting, welding or drilling into the hitch. Mount it to the vehicle's bumper or other suitable surface instead.
The adapter uses four wires: Yellow (auxiliary or back-up lights), Blue (electric brakes), Black (positive power with appropriate inline fuse), and White (ground). All wires except black and white must be connected using 12 gauge (minimum) wire and butt connectors to the appropriate vehicle functions.
The white wire is the ground connection. It must be attached with a ring terminal to a 1/8" hole drilled in a suitable grounding point on the vehicle using a #10 - 1/2" self-tapping screw. This ground connection is required for the harness to work properly. The white wire on the vehicle's 4-way flat connector does not support the ground (-) functions of the combination harness.
Yes. The black wire (positive power) must be connected with an appropriate inline fuse. The manual does not specify the fuse amperage rating.
Use 12 gauge (minimum) wire for all connections. The manual specifies this minimum gauge for the remaining wires (yellow, blue, and black) when connecting to appropriate vehicle functions.
Failing to properly ground the product can cause loss of warranty, overheating and potential fire. The white wire must be securely attached to a clean grounding point using a #10 - 1/2" self-tapping screw in a 1/8" hole. The area must be clean of dirt, debris or undercoating.
Before drilling, you must check for brake lines, fuel lines, wiring and any other components that may be hidden behind or under the surface. Drilling into these components can cause damage and personal injury.
Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower. Exceeding either rating can cause damage or unsafe operation.
Confirm proper function with a test light or by using a properly functioning trailer. This verifies that all connections are working correctly before towing.
Secure any loose wires using cable ties or equivalent product to prevent them from moving, catching on components, or becoming damaged.
Your vehicle must have a 4-way flat trailer connector. If it does not, you will need to install a custom wiring harness or other 4-way flat connector first. Check the part number table to confirm the adapter converts to the connector type you need.
You must purchase three #10 - 1/2" self-tapping screws for the mounting bracket. You will also need an appropriate inline fuse for the black (positive power) wire; the manual does not specify the amperage.
Yes, you must drill two 1/8" holes: one for grounding and one for the mounting bracket. Before drilling, check for brake lines, fuel lines and wiring behind the surface. Never drill into the hitch.
Yellow = auxiliary/back-up lights; Blue = electric brakes; Black = positive power (needs inline fuse); White = ground (must be properly grounded or warranty is void and fire risk exists). Use 12 gauge minimum wire and butt connectors.
Proper grounding of the white wire is critical. Failing to ground it properly can cause loss of warranty, overheating and fire. The grounding point must be clean of dirt, debris and undercoating.
Test with a test light or by using a properly functioning trailer to confirm all connections work. Secure loose wires with cable ties.
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