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Complete CURT Class 3 2" trailer hitch and 5-flat wiring kit (with 4-way to 5-way adapter for surge brakes) engineered for the 2010 - 2013 Subaru Outback Wagon. 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 Legacy and Outback (see application info to verify vehicle compatibility). It provides a weight carrying capacity of 4,000 lbs. GTW and 600 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 888-634-9494One-Year Limited Warranty
1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2010 - 2013 | Subaru Outback | Wagon |
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The 10 - 13 Subaru Outback Wagon Curt 2" Class 3 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 13390 (Part #5W-CHW-2803) fits the following vehicles: 2010-2013 Subaru Outback. Always verify your specific year, make, and model before ordering.
The 10 - 13 Subaru Outback Wagon Curt 2" Class 3 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 13390 (Part #5W-CHW-2803) fits 2010-2013 Subaru Outback models. The 2013 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the 10 - 13 Subaru Outback Wagon Curt 2" Class 3 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 13390 (Part #5W-CHW-2803) is designed to fit the 2010-2013 Subaru Outback.
The 10 - 13 Subaru Outback Wagon Curt 2" Class 3 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 13390 (Part #5W-CHW-2803) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
Yes, Curt part number 13390 is designed for the Subaru Outback Wagon. Confirm your vehicle year matches the manual application before purchase.
The manual specifies a gross load capacity when used as a weight-carrying hitch, but the exact trailer weight and tongue weight values are not filled in on the document provided. Contact Curt Manufacturing technical support at 1-877-287-8634 for the complete capacity specifications. Always verify that your towing does not exceed your vehicle manufacturer's recommended towing capacity.
You will need: 10 mm and 19 mm sockets, an 8-inch extension, a ratchet, a torque wrench, a drill with a 17/32-inch bit, a rotary tool with a carbide bit, and tin snips or a file. A torque wrench is essential because all fasteners must be torqued to 110 ft-lbs.
The kit includes: 4 carriage bolts (1/2-13 UNC, 1-1/2 inch, Grade 8, yellow zinc), 4 square hole spacers (0.250 x 1.00 x 3.00 inch), 4 serrated flange nuts (1/2-13 UNC, Grade 8, yellow zinc), and 2 pieces of 1/2-inch fishwire.
Yes. You must lower the exhaust by removing the three rearmost rubber exhaust isolators from the frame-mounted hangers. Support the exhaust during installation to prevent damage. The exhaust is reinstalled after the hitch is secured.
Yes. You must remove the muffler heat shield and trim it to clear the mounting plate. The trim diagram shows a 1.125-inch removal along the bend line. The heat shield is reinstalled after the hitch is secured.
Yes, drilling is required. You must enlarge the forwardmost hole on each frame rail using a 17/32-inch drill bit to allow the carriage bolt and spacer to be inserted. You will also drill two additional forwardmost holes in the frame rails using the hitch as a template. The manual notes that drilling is required in the install notes.
Use a 17/32-inch drill bit. This is used to enlarge the forwardmost hole on each frame rail to allow the carriage bolt and spacer to be inserted.
Fishwire is a flexible wire used to guide fasteners into frame rail holes that are not directly accessible. For the Curt 13390, you thread a carriage bolt and spacer through fishwire and feed them into the rearmost hole in each frame rail before raising the hitch into position. The manual includes a Fishwire Hardware Technique diagram. Two pieces of 1/2-inch fishwire are included in the kit.
1. Fishwire a carriage bolt and spacer into the rearmost hole in each frame rail. 2. Raise the hitch into position and loosely secure it with hex flange nuts. 3. Mark and drill the forwardmost holes in the frame rail using the hitch as a template. 4. Fishwire a carriage bolt and spacer into each newly drilled hole and secure with a hex flange nut. 5. Torque all hardware to 110 ft-lbs. Do not fully tighten fasteners until all four are in place.
All hardware must be torqued to 110 ft-lbs. This applies to all four carriage bolts and hex flange nuts. Use a torque wrench to ensure proper tightening.
Yes. After raising the hitch into position, center it on the vehicle before loosely securing it with hex flange nuts. This ensures proper alignment before the fasteners are fully torqued.
After installation, verify that all fasteners are tight and all structural components are sound. The manual recommends periodically checking the receiver hitch to ensure that all fasteners remain tight and that all structural components remain in good condition.
All non-trailer loads applied to this hitch must be supported by auxiliary stabilizing straps. Failure to properly support non-trailer loads will void the product warranty. This applies to any load that is not a trailer.
No. The manual explicitly states: "DO NOT EXCEED VEHICLE MANUFACTURER'S RECOMMENDED TOWING CAPACITY." Even if the hitch has a higher capacity rating, you must follow your vehicle manufacturer's limits.
The manual recommends periodically checking the receiver hitch to ensure that all fasteners are tight and that all structural components are sound. No specific interval is provided; perform checks regularly as part of vehicle maintenance.
The hitch weight specification is not filled in on the manual provided. Contact Curt Manufacturing technical support at 1-877-287-8634 for the hitch weight.
Yes, the Curt 13390 is designed for the Subaru Outback Wagon.
You need: 10 mm and 19 mm sockets, 8-inch extension, ratchet, torque wrench, drill with 17/32-inch bit, rotary tool with carbide bit, and tin snips or file.
Yes, drilling is required. You must enlarge existing frame rail holes and drill two new holes using a 17/32-inch bit.
Yes. You must lower the exhaust by removing three rubber isolators and trim the muffler heat shield by 1.125 inches. Both are reinstalled after the hitch is secured.
Torque all fasteners to 110 ft-lbs using a torque wrench.
Do not exceed your vehicle manufacturer's recommended towing capacity. All non-trailer loads must be supported by auxiliary stabilizing straps or warranty is voided.
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.
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