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Complete CURT Class 3 2" trailer hitch and 4-flat custom wiring kit engineered for the 2024 - 2026 Subaru Crosstrek Excluding Wilderness. Vehicle-specific fit, plug-and-play installation, all hardware and instructions included.
This custom kit fits the following vehicles:
All Hardware and Installation Instructions Included!
Whatever your task at hand -- whether it's launching that boat before daybreak, setting up your camper before the rush or getting a final load to the dump before close -- CURT class 3 trailer hitches offer the strength needed for serious towing. They make it easy to hitch up and Bring It, offering a vehicle-specific fit and the weight capacity to handle a variety of trailers. Custom class 3 hitches are the most common type of receiver hitch for pickup trucks and SUVs. Because of their weight range, they are also found on full-size cars, crossovers and minivans. Each custom-fit class 3 hitch package is made for vehicle-specific mounting. This particular kit fits certain years of the Subaru Crosstrek (see application info to verify vehicle compatibility). It provides a weight carrying capacity of 3,500 lbs. GTW and 525 lbs. TW. CURT class 3 trailer hitches are typically used to attach and haul utility trailers, boat trailers, campers, snowmobile or ATV haulers and more (NOTE: Never exceed the lowest-rated towing component). Each class 3 hitch has a 2" receiver tube and is tested in accordance with SAE J684 for safety. To ensure that CURT class 3 receiver hitches have what it takes for serious trailering, they are designed using a hands-on approach and are constructed with rugged, high-strength steel and precise welding. We also protect our class 3 hitches in a co-cured finish of liquid A-coat and black powder coat for superior resistance to rust, chipping and UV damage.
CURT custom wiring connectors are the easiest way to outfit your vehicle with a CURT trailer wiring connection. They are built with some of the most advanced technology in the industry, and each one is custom-fitted to work with a specific make and model. Some automotive manufacturers install a special socket on the vehicle to be used for vehicle-to-trailer wiring. Although this special socket is not equipped on every vehicle, a CURT custom wiring connector -- also called a T-connector -- utilizes the socket for simple, stress-free installation. Rather than requiring you to cut, splice and solder into your vehicle's wiring system, the custom wiring connector uses a single OEM-compatible plug and instantly provides a standard, universal vehicle-to-trailer wiring connection, typically in the form a 4-way flat. All CURT custom wiring connectors are made vehicle-specific for the easiest possible installation and the best fit. This particular plug-in connector provides a 4-way flat socket and is designed to be a custom wiring option for certain years of the Subaru Ascent, Forester, Outback, Crosstrek and XV Crosstrek (to verify your vehicle compatibility, see application info). It comes with all necessary hardware to establish a solid connection. It also comes with a dust cover to keep the connector socket clean when not in use. To ensure long-lasting reliability, all CURT custom wiring connectors are thoroughly tested for optimal functionality. Stress is the last thing you should feel when towing a trailer -- whether you're hauling your RV to that favorite camping destination, your ATVs up to the hunting grounds or your fishing boat to the new hidden hotspot. At CURT, we think your towing equipment should add to the enjoyment of your experience, not detract from it.

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 |
|---|---|---|
| 2024 - 2026 | Subaru Crosstrek | Excluding Wilderness |
Yes, the Curt 56040 vehicle-to-trailer connector fits Subaru Forester models from 2009 onwards, including 2009–2013 and 2014+ versions. However, the wiring harness location differs between these model years, so follow the instructions specific to your year. The connector does not fit Subaru Crosstrek or XV Crosstrek Hybrid models.
No. The Curt 56040 is designed for Subaru Crosstrek and XV Crosstrek models, but explicitly excludes Hybrid versions. If you have a Hybrid model, contact Curt Manufacturing or your vehicle manufacturer to confirm compatibility.
The Curt 56040 is rated for Signal Circuits at 3.0 amps per side and Tail/Running Circuits at 6.0 amps total. The battery connection must be fuse-protected with a 10-amp maximum fuse. Do not exceed the product rating or your tow vehicle's lamp load rating, whichever is lower, as exceeding it can cause loss of warranty, overheating and potential fire.
You will need a 10mm socket, a ratchet, and a panel trim removal tool. These are the only tools specified in the manual. Additional tools such as a drill may be needed if you must drill a pilot hole for the ground screw, depending on whether a suitable existing screw is available in your vehicle.
Yes. The first step of installation is to locate the vehicle battery on the driver side under the hood and disconnect the negative battery terminal. This must be done before proceeding with any other installation steps.
On 2009–2013 Forester models, the vehicle wiring harness connectors are located on the driver side under the trays in the trunk. You must first remove all trunk floor coverings and the plastic fasteners securing the trays in the center and on the driver side to access them.
On Subaru Outback models, the vehicle wiring harness connectors are tucked up behind the driver side inner fender trim, visible near the rubber grommet in the floor and the cargo anchor. You must first remove trunk floor coverings and trays to access this area.
On 2014+ Forester and XV Crosstrek models, the vehicle taillight wiring harness connectors are located on the driver side behind the rear trim panel. Pull back on the rear trim panel to locate them.
Insert the custom connector end into the vehicle connector. Make sure the connectors are fully inserted with locking tabs in place. Do not proceed until the connection is secure and the locking tabs are engaged.
Not necessarily. First, 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. Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury.
Locate a suitable grounding point near the connector, such as an existing screw with nut in the vehicle frame, or drill a 3/32" pilot hole for the provided screw if needed. The area should be free of rust, dirt and paint. Secure the white ground wire using the ring terminal and provided screw.
Locate a flat spot inside the vehicle, near the taillight, and adhere the black converter box using the provided double-sided tape. Ensure the surface is clean and flat to allow the tape to bond securely.
Install a red 10-amp fuse into the in-line fuse holder. This is the maximum fuse rating allowed; do not use a fuse with a higher amperage rating.
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 to prevent tangling and damage.
After installation, reinstall all items removed during the install and reconnect the negative battery terminal. Install the provided 4-flat dust cover to help prevent corrosion. Test the connector for proper function by using a test light or connecting a properly wired trailer.
Test the connector for proper function by using a test light or connecting a properly wired trailer. All steps must be followed to ensure the wiring connector will function properly.
Yes, the Curt 56040 fits Subaru Ascent, Forester (all years), Outback, Crosstrek, and XV Crosstrek—but excludes Hybrid models. Confirm your model year and drivetrain before purchasing.
You need a 10mm socket, ratchet, and panel trim removal tool. A drill may be needed if no existing ground screw is available.
Yes, disconnect the negative battery terminal before starting installation.
Drilling is not required if an existing screw with nut is available in the vehicle frame for the ground connection. If not, drill a 3/32" pilot hole for the provided screw.
The maximum fuse rating is 10 amps. Do not exceed this rating or the tow vehicle's lamp load rating, whichever is lower.
Gross trailer weight (GTW) is 3,500 lbs. Tongue weight (TW) is 525 lbs. Never exceed your vehicle manufacturer's recommended towing capacity.
The kit includes: 1 trailer hitch, 4 carriage bolts (1/2" - 13 x 1-1/2"), 4 serrated-flange nuts (1/2" - 13), 4 square-hole spacers (.250" x 1.00" x 3.00"), and 2 round-hole spacers (.250" x 1.50" x 2.00").
Required tools: ratchet, torque wrench, 3/4" socket, 1/2" fishwire (qty 4), and die grinder. A tools reference guide is available at curtmfg.com/trailer-hitch-installation.
Yes. Remove two rubber plugs from each frame rail in Step 1. Return these plugs to the vehicle owner. Leave the center plugs installed in the frame.
Yes. The installation requires drilling and hole enlargement. In Step 2, enlarge access holes as necessary to accommodate the fishwire technique used to install the carriage bolts and spacers.
The fishwire technique uses 1/2" fishwire to guide bolts and spacers through the vehicle frame. Attach fishwire to the carriage bolt, slide the spacer onto the fishwire, push the bolt through the mounting hole followed by the spacer, then pull the bolt back into position protruding from the frame. For the reverse pull technique, insert the coiled end of fishwire through the hitch mounting hole and out the access hole, pass it through the spacer, thread the bolt into the coil, kink the wire to keep the spacer separate from the bolt, then pull the fishwire, spacer and bolt through the frame and out the mounting hole. Use fishwire to guide the hitch during mounting and prevent loss of bolts or spacers inside the frame rail.
In Step 2, first fishwire the 1/2" carriage bolts (#2) and square-hole spacers (#4) into the rearmost position. Then reverse fishwire the remaining 1/2" carriage bolts and square-hole spacers into the access hole. Leave fishwires attached until Step 3.
In Step 3, raise the hitch to the frame by feeding the fishwire through the hitch mounting holes and align the mounting holes with the bolts. Use the round-hole spacers (#5) to level the hitch as necessary. Be careful not to push the bolts into the frame.
Remove the fishwires in Step 3, after raising the hitch to the frame and aligning the mounting holes with the bolts. After removing the fishwires, loosely install the 1/2" flange nuts (#3).
Torque all 1/2" fasteners to 110 ft-lb in Step 4. Use a torque wrench to ensure proper tightness and prevent damage to the product or vehicle.
A 3/4" socket is required, used with a ratchet to tighten the 1/2" - 13 serrated-flange nuts.
Safety glasses must be worn at all times while installing this product. Never exceed your vehicle manufacturer's recommended towing capacity. Be careful not to push the bolts into the frame during installation.
Periodic inspection of the trailer hitch should be performed to ensure all mounting hardware remains tight and structural components are secure.





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