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| Receiver Tube Size | 1-1/4 IN |
| Side Application Type Description | Blank |
| 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 | Blank |
| Battery-Powered | Yes |
| Converter Type | Circuit Protected and Powered |
| Electrical System Type | 3W |
| Finish | N/A |
| Material | Blank |
| Mount Type Description | Blank |
| Output Type | 4-Way Flat |
| Side Application Type Description | Blank |
| T-Connector Location | S1,S2 |
| Tail Light Circuits | 6.0 Amps |
| Turn and Brake Circuits | 3.0 Amps |
| Warranty | One-Year Limited Warranty |
| Side Application Type Description | Blank |
| Tongue Weight (TW) | 350 LB |
| Warranty | Limited Lifetime Warranty (One-Year Finish, One-Year Parts) |
| Drop | 3-1/4 IN |
| Finish | GLOSS BLACK POWDER COAT |
| Gross Trailer Weight (GTW) | 3,500 LB |
| Material | Blank |
| Mount Type Description | Blank |
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®.'
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Call 888-634-9494The 15-21 Subaru WRX STI 1.25 CURT Trailer Hitch + Assure Proportional Brake Controller Kit HBCW2323 (Part #HBCW2323) fits the following vehicles: 2015-2021 Subaru WRX STI. Always verify your specific year, make, and model before ordering.
The 15-21 Subaru WRX STI 1.25 CURT Trailer Hitch + Assure Proportional Brake Controller Kit HBCW2323 (Part #HBCW2323) fits 2015-2021 Subaru WRX STI models. The 2021 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the 15-21 Subaru WRX STI 1.25 CURT Trailer Hitch + Assure Proportional Brake Controller Kit HBCW2323 (Part #HBCW2323) is designed to fit the 2015-2021 Subaru WRX STI.
The 15-21 Subaru WRX STI 1.25 CURT Trailer Hitch + Assure Proportional Brake Controller Kit HBCW2323 (Part #HBCW2323) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
Yes, the Curt 11286 receiver hitch is designed for Subaru Impreza 5-door and (XV) Crosstrek models from 2012 to current. It is designed for single exhaust systems. If your vehicle has dual exhaust, you should verify fitment with Curt technical support at 877.287.8634 before purchasing.
The Curt 11286 is designed for use with ballmount #D-55001 or #45501. A Euro mount option is also available with either a 1 7/8" ball (#45571) or 2" ball (#45572). These ballmounts are sold separately.
The Curt 11286 has a gross load capacity of 2,000 lbs trailer weight and 200 lbs tongue weight when used as a weight-carrying hitch. However, you must not exceed your vehicle manufacturer's recommended towing capacity, which may be lower.
The hitch weight is not specified in the installation manual. Contact Curt Manufacturing at 877.287.8634 or visit www.curtmfg.com for this specification.
Required tools are: 3/8" drive ratchet, 11/16" and 3/4" sockets (3/8" drive), 3/8" drive torque wrench, and a die grinder with rasp bit for hole enlargement. Safety glasses must be worn at all times during installation.
Two people may be required to ease installation. The manual notes that using proper tools will greatly improve the quality of the install and reduce the time required. If you are hesitant to undertake this task on your own, contact an authorized Curt installer for assistance at 877.287.8634.
The installation manual does not specify whether the battery must be disconnected. Contact Curt technical support at 877.287.8634 for guidance on this step.
Yes, hole enlargement is required. The manual states "hole enlargement required" and instructs you to "enlarge access hole as necessary" when fishwiring the carriage bolts and spacers into position. A die grinder with rasp bit is required for this work. The exact amount of enlargement needed is not specified and will depend on your vehicle's frame configuration.
The installation sequence is: (1) Remove the 4 plugs in the frame rails and discard (leave center plugs in). (2) Fishwire the 7/16" carriage bolts and spacers into position first, then reverse fishwire the 1/2" carriage bolts and spacers into position afterward, enlarging the access hole as necessary. (3) Raise the hitch to the frame, aligning the holes in the hitch with the bolts. Use 1.50" x 2.00" spacers to level the hitch as necessary. Be careful not to push the bolts in the frame. (4) Install remaining supplied hardware. (5) Torque all 7/16" fasteners to 70 lb-ft and all 1/2" fasteners to 110 lb-ft.
Fishwire fasteners are included in the kit (7/16" fishwire and 1/2" fishwire) and are used to guide carriage bolts and spacers into position through the frame rails before the hitch is raised into place. The installation sequence requires you to fishwire the 7/16" carriage bolts and spacers into position first, then reverse fishwire the 1/2" carriage bolts and spacers into position afterward. You may need to enlarge the access hole as necessary to fit the fasteners through.
Three types of spacers are included: (1) .250 x 1.00 x 3.00" square hole spacers (CM-SP6, qty 2), (2) .250 x 1.00 x 2.50" square hole spacers (CM-SP11, qty 2), and (3) .250 x 1.50 x 2.00" round hole spacers (CM-SP16, qty 2). The 1.50" x 2.00" round hole spacers are used to level the hitch on the vehicle during installation. The square hole spacers are fishwired into position along with the carriage bolts before the hitch is raised.
Torque all 7/16" fasteners to 70 lb-ft and all 1/2" fasteners to 110 lb-ft. Use a 3/8" drive torque wrench to achieve these specifications.
The kit includes: (1) Two 1/2-13 UNC carriage bolts, 1-1/2" long, grade 8, zinc-plated (part 10-10287), (2) Two 7/16-14 UNC carriage bolts, 1-1/2" long, grade 8, zinc-plated (part 10-10282), (3) Two 1/2-13 UNC serrated flange nuts, grade 8, zinc-plated (part 20-00062), and (4) Two 7/16-14 UNC serrated flange nuts, grade 8, zinc-plated (part 20-00103). All fasteners are included in the kit.
After installation, periodically check that all fasteners are tight and that all structural components are sound. The manual recommends checking the hitch regularly to ensure it remains in safe working condition. If any fasteners are loose or components are damaged, tighten or repair them before using the hitch.
The manual states to "periodically check this receiver hitch to ensure that all fasteners are tight and that all structural components are sound." It does not specify an exact interval. For safety, inspect the hitch before each towing trip and at regular intervals during the towing season.
You must never exceed your vehicle manufacturer's recommended towing capacity. Although the Curt 11286 has a gross load capacity of 2,000 lbs trailer weight and 200 lbs tongue weight, your Subaru Impreza or Crosstrek may have a lower manufacturer-recommended limit. Check your vehicle's owner's manual or contact your Subaru dealer to confirm the maximum towing capacity for your specific model year and configuration.
Yes. Curt recommends the use of 18050 stabilizing straps for all non-trailer (wheel-less) loads. For further information about these straps, see the Curt catalog or visit www.curtmfg.com.
Yes, the Curt 11286 is designed for Subaru Impreza 5-door and (XV) Crosstrek models from 2012 to current with single exhaust systems.
The hitch supports 2,000 lbs trailer weight and 200 lbs tongue weight, but you must not exceed your vehicle manufacturer's recommended towing capacity.
You need a 3/8" drive ratchet, 11/16" and 3/4" sockets, 3/8" drive torque wrench, and a die grinder with rasp bit for hole enlargement. Safety glasses are required.
Yes, hole enlargement is required. A die grinder with rasp bit is needed to enlarge the frame rail access holes as necessary to fit the carriage bolts and spacers.
Two people may be required to ease installation. If you are hesitant, contact an authorized Curt installer at 877.287.8634.
Never exceed your vehicle manufacturer's recommended towing capacity. The hitch supports 2,000 lbs trailer weight and 200 lbs tongue weight, but your Subaru's limit may be lower.
Periodically check that all fasteners are tight and all structural components are sound before and during use.
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 56243 is designed for all Subaru Crosstrek models, including the XV Crosstrek, XV Crosstrek Hybrid, and Crosstrek Hybrid. Check the manual's applications list to confirm your specific model year and variant are included.
The CURT 56243 is a custom wiring harness that connects your Subaru Crosstrek's taillights to a 4-flat trailer connector. It includes a converter box, ground wire, power wire, and harness ends with yellow and green wires for driver and passenger side taillights respectively.
You will need: a ratchet, 10mm socket, panel trim removal tool, Phillips screwdriver, side cutter, and a cutting tool. A drill may be needed if you choose to drill a pilot hole for the grounding screw, though an existing screw with nut in the vehicle frame can be used instead.
Yes. Step 1 requires you to locate the vehicle battery on the driver side under the hood and disconnect the negative battery terminal before beginning any installation work.
Open the tailgate and remove all trunk floor coverings and storage trays. Remove fasteners securing the rear storage tray, then remove fasteners securing the rear scuff panel. Pull the scuff panel out at the bottom and then up. On the driver side, remove two Phillips screws securing the taillight housing, then gently pull the taillight rearward and out. The taillight wiring connectors will be visible behind the housing.
The grommet is the rubber seal where factory wires run from inside the trunk to the taillight. You make a small slit in it to route the CURT wiring harness end with the yellow wire out from the trunk, through the slit, and to the taillights. This allows the new harness to follow the same path as the factory wiring.
Insert the CURT wiring harness end with the yellow wire between the separated factory taillight connectors. Make sure the connectors are fully inserted with locking tabs in place. Repeat this process on the passenger side using the harness end with the green wire.
Not necessarily. Step 7 instructs you to locate a suitable grounding point near the connector, such as an existing screw with nut in the vehicle frame. If no suitable existing screw is available, you may drill a 3/32" pilot hole for the provided screw. The area must be free of rust, dirt and paint.
The battery connection must be fuse-protected with a maximum 10-amp fuse. Exceeding this rating can cause loss of warranty, overheating and potential fire. Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower.
Signal circuits are rated at 3.0 amps per side. Tail and running circuits are rated at 6.0 amps total. Do not exceed these ratings or the tow vehicle lamp load rating, whichever is lower.
Locate a flat spot inside the vehicle near the taillight and adhere the black converter box using the provided double-sided tape. The manual does not specify exact dimensions or clearance requirements, so choose a location that is accessible and protected from moisture.
When in use, route the 4-flat to the center of the vehicle. When not in use, roll it up and store in a convenient, out-of-the-way location. Secure any loose wires with the provided cable ties.
After installation, test for proper function by using a test light or connecting a properly wired trailer. All steps must be followed to ensure the wiring harness functions properly. Reconnect the negative battery terminal and install the provided 4-flat dust cover to help prevent corrosion.
Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. This is especially important when drilling the 3/32" pilot hole for the ground wire screw.
The CURT 56243 uses yellow wire for the driver side taillight connection, green wire for the passenger side taillight connection, white wire for the ground connection, and black wire for the power connection to the converter box.
Yes, CURT 56243 fits all Subaru Crosstrek models including XV Crosstrek, XV Crosstrek Hybrid, and Crosstrek Hybrid.
Ratchet, 10mm socket, panel trim removal tool, Phillips screwdriver, side cutter, and cutting tool. A drill may be needed for the ground wire pilot hole.
Yes, disconnect the negative battery terminal before starting installation.
No, not if an existing screw with nut is available in the vehicle frame. If not, drill a 3/32" pilot hole for the provided screw.
10-amp maximum. Exceeding this can cause loss of warranty, overheating and potential fire.
Converter box, ground wire with ring terminal and screw, power wire, wiring harness ends with yellow and green wires, cable ties, and 4-flat dust cover.
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.
1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2015 - 2021 | Subaru WRX STI | — |
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