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2019 - 2022 Toyota Prius
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Complete CURT Class 1 1-1/4" trailer hitch and 4-flat custom wiring kit engineered for the 2019 - 2022 Toyota Prius. 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!
However you define adventure -- whether it's climbing onto the back of a mountain bike, hunting from the top of a tree stand or camping with the family a long way from nowhere -- CURT class 1 hitches provide a light-duty towing receiver to help you Bring It. Each is made to fit a specific vehicle, providing easier installation, a better fit and optimal towing capacity. Custom class 1 trailer hitches are available for a variety of smaller vehicle types, including the compact car, crossover, minivan and small SUV. This particular class 1 hitch is designed to be a custom hitch for certain years of the Toyota Prius and Prius Prime (to verify vehicle compatibility, see the CURT application guide at curtmfg.com). Tested in accordance with SAE J684, it offers a weight carrying capacity of 2,000 lbs. GTW and 200 lbs. TW. It is equipped with 1-1/4" receiver tube opening to accept a ball mount shank or other hitch mount. This class 1 hitch also comes with all necessary mounting hardware. With its lightweight design and smaller receiver tube size, a class 1 hitch is especially useful for adding cargo space with a hitch-mounted bike rack or cargo carrier. They can also typically be used to tow small trailers such as a utility trailer, kayak trailer or teardrop camper (never exceed the lowest weight capacity of any towing component; i.e. the vehicle, hitch, trailer, etc). Though CURT class 1 trailer hitches are only intended for light-duty towing, we apply the same principles of quality as we do to the rest of our rear mount hitches. Each class 1 hitch is made with hands-on engineering, high-strength steel and precise welding. We use a co-cured finish of liquid A-coat, inside and out, and durable black powder coat to provide a lasting defense against rust, chips and UV rays.
If your vehicle is not equipped with wiring for towing a trailer, CURT custom wiring is the ideal solution. A custom wiring harness -- also called a T-connector -- is a simple, plug-and-play electrical device that plugs into your automotive electric system and provides a standard, universal trailer wiring connection. This is done using two or more vehicle-specific, OEM-compatible connectors to plug into the taillight assembly, eliminating the need for cutting, splicing and soldering during installation. Custom wiring harnesses are made vehicle-specific, and while they are not available for all vehicles, they do offer one of the fastest, easiest and most secure ways to wire a vehicle for towing. This particular plug-in harness provides a 4-way flat connector socket and is designed to be a custom wiring harness to fit certain years of the Toyota Prius AWD-e (to verify your vehicle compatibility, see application info). It comes with all necessary wiring components to establish a reliable trailer wiring connection, as well as a dust cover to keep the connector clean when not in use. You have a picture in mind of your next destination -- maybe it's the boat landing at your favorite fishing spot, maybe it's a campsite that overlooks one of nature's masterpieces, or maybe it's the next big jobsite. However, turning that picture into a reality takes more than just daydreaming. It takes a solid connection and the right amount of power. CURT custom wiring is made with some of the most sophisticated technology in the industry and is designed to install with ease, giving you a long-lasting electrical connection for your towing hitch setup.

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 |
|---|---|---|
| 2019 - 2022 | Toyota Prius | — |
Yes, CURT 11473 is designed for 2016-Present Toyota Prius Hatchback models. Confirm your vehicle matches this specification before purchase.
Maximum 2,000 lbs trailer weight and 200 lbs tongue weight. Never exceed your vehicle manufacturer's recommended towing capacity.
No, drilling is not required. The hitch uses existing holes and weldnuts on the vehicle frame.
Ratchet, 12mm and 13mm sockets, torque wrench, Phillips screwdriver, small flat blade screwdriver, hammer, masking tape, tape measure, aviation shears, and safety glasses.
Yes. You must remove the bumper beam and lower rear fascia. The hitch installs using the existing vehicle frame holes and weldnuts.
All M8 fasteners (part 10-10268) must be torqued to 23 lb-ft.
All non-trailer (wheel-less) loads must be supported by CURT 18050 stabilizing straps. Failure to use them voids the warranty.
Periodically check that all fasteners are tight and all structural components are sound.
CURT 11473 is a Euro Mount receiver hitch designed for 2016-Present Toyota Prius Hatchback models. It is a weight-carrying hitch with a maximum capacity of 2,000 lbs trailer weight and 200 lbs tongue weight. It is designed for use with ball mounts 45521, 45571 (1 7/8" ball), or 45572 (2" ball).
CURT 11473 is designed for use with ball mount 45521. Euro mount options are available: 45571 (1 7/8" ball) or 45572 (2" ball).
No. CURT 11473 is designed for 2016-Present Toyota Prius Hatchback models only. It is not compatible with 2015 or earlier models.
No. CURT 11473 is specifically designed for the Prius Hatchback body style. Compatibility with other Prius variants is not stated in the manual.
Eight M8x1.25x25 fasteners (part 10-10268, grade CL10.9, zinc-plated) are included. These are the only fasteners listed in the parts list. The hitch uses existing holes and weldnuts on the vehicle frame.
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.
You must remove: (3) underbody panels (held by 14 push pin fasteners and 3 twist-type fasteners), the lower rear fascia (held by 2 screws and possibly 2 white plastic clips), and the bumper beam (held by 8 bolts). The bumper beam and flange bolts are returned to the vehicle owner.
Some Prius models have 2 white plastic clips located by the lower rear fascia screws. These must be removed if present. Check during step 2 of the installation.
Yes. After the hitch is installed, you must trim the underbody panels as needed for reinstallation using the diagrams provided in the manual. Aviation shears are included in the required tools for this purpose.
Use aviation shears to trim the underbody panels as needed for reinstallation. The manual provides diagrams showing where trimming is required.
1. Remove underbody panels, lower rear fascia, and bumper beam. 2. Flatten the bumper beam tabs with a hammer. 3. Unclip wiring and fascia. 4. Raise the hitch and bumper beam assembly into position and loosely install fasteners with a 13mm socket. 5. Torque all M8 fasteners to 23 lb-ft. 6. Reinstall the lower bumper fascia. 7. Trim underbody panels as needed. 8. Reinstall underbody panels.
No. In step 5, loosely install fasteners with a 13mm socket. Only in step 6 do you torque all M8 fasteners to their final specification of 23 lb-ft.
The bumper beam assembly has tabs on the ends that must be flattened with a hammer so they are flush. This is done in step 3 before raising the hitch into position.
The fasteners are M8x1.25x25, grade CL10.9, zinc-plated (part 10-10268). Eight fasteners are included. They must be torqued to 23 lb-ft.
Safety glasses must be worn at all times while installing this product. If you are hesitant to undertake this task on your own, contact an authorized CURT installer for additional assistance. Call technical support at 877-287-8634 if you have questions.
Never exceed your vehicle manufacturer's recommended towing capacity. CURT 11473 is rated for a maximum of 2,000 lbs trailer weight and 200 lbs tongue weight, but your vehicle's manufacturer may specify a lower limit. Always follow the vehicle manufacturer's recommendation.
After installation, periodically check that all fasteners are tight and that all structural components are sound. This ongoing maintenance is essential to ensure safe operation.
The manual states to periodically check the receiver hitch to ensure all fasteners are tight and all structural components are sound. No specific interval is provided; regular visual 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.
CURT 11473 complies with safety specifications and requirements for connecting devices and towing systems of the state of New York, V.E.S.C. Regulation V-5 and SAE J684.
Periodically check that all fasteners are tight. If any fasteners are found to be loose, retighten them. The manual recommends regular inspection to ensure all fasteners remain tight and all structural components are sound.
The CURT 56439 is a powered converter wiring harness designed to convert a vehicle's taillight signals into trailer lighting signals. It includes a converter box that processes the vehicle's electrical signals and outputs them through a 4-flat connector for trailer use. The system is rated for 3.0 amps per side on signal circuits and 6.0 amps total on tail/running circuits.
The CURT 56439 is designed for passenger cars with 12-volt negative ground electrical systems. The manual states it is for use only on 12-volt negative ground systems. The wiring locations shown are for passenger cars (P3, P5, P6). For specific vehicle compatibility, consult the vehicle owner's manual or contact the vehicle manufacturer.
Required tools are: ratchet, cutting tool, 10mm socket, wire crimper, socket extension, wire stripper, small flathead screwdriver, electrical tape, and panel trim removal tool. These tools are needed for removing fasteners, cutting the grommet, stripping and crimping wires, and removing interior trim panels.
The kit includes a custom wiring harness with yellow and green wire ends, a black converter box, a white ground wire with ring terminal, a ground screw, double-sided tape for mounting the converter, cable ties, sealant for the grommet, a 4-flat dust cover, and a 10-amp fuse holder with fuse.
Yes. Step 1 requires you to locate the vehicle battery and disconnect the negative battery terminal. Fasten this wire down and away from the battery during installation. The negative battery must remain disconnected until Step 13, after all other wiring is complete and before connecting the 12-volt power wire.
You must remove: all trunk floor coverings and filler panels, the plastic filler in the center of the trunk (behind rear seats), two 10mm cargo hold-down bolts, push fasteners in the vehicle threshold, sidewall fastener covers on both sides of the trunk hatch, side trunk liners, and the access panel to the underside of the vehicle.
On the driver side, use a panel trim removal tool to loosen the sidewall panel and felt liner. Pull back the felt liner to locate the vehicle taillight wiring connectors. Separate the connectors from the taillight housing carefully without damaging the locking tabs. Insert the custom wiring harness end with the yellow wire between the separated connectors, ensuring they are fully inserted with locking tabs in place. Repeat on the passenger side with the green wire harness end, routing it along the rear of the vehicle and securing with zip ties under the threshold.
Drilling may be required. Step 7 requires cutting the grommet to allow wiring to pass through. Step 11 requires locating a grounding point near the converter box; if an existing screw or bolt is not available, you must drill a 3/32-inch pilot hole. Before drilling, check for hidden items behind or under any surface to avoid damage and personal injury.
Locate the grommet just to the driver side of the center of the vehicle in the rear body. Remove the grommet from the body. Using a wire cutter, make a cut into the grommet big enough to allow the wiring to be placed inside the mounting groove. Be careful not to cut any wires. Reseat the grommet and use the provided sealant to seal the cut and around all wires. Apply additional sealant as needed to ensure a tight seal and keep the trunk dry.
Signal circuits are rated for 3.0 amps per side. Tail/running circuits are rated for 6.0 amps total. Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower. Exceeding the product rating can cause loss of warranty, overheating, and potential fire.
The wiring harness includes: yellow wire for left turn signal, green wire for right turn signal, red wire for brake signal, and brown wire for taillight. The converter box has a black power wire that connects to the vehicle battery positive terminal and a white ground wire with ring terminal that connects to the vehicle body.
The battery connection must be fuse-protected with a 10-amp maximum fuse. The kit includes a fuse holder with a 10-amp fuse. Install the fuse after all other steps are complete, as the final step before reconnecting the negative battery terminal.
Route the 12-gauge black power wire from the vehicle battery to the converter, taking care to avoid pinch points and hot or rotating components. When passing the power wire through sheet metal, use an existing grommet, add a grommet, or use silicone to protect the wire from sharp edges. Secure the power wire to the vehicle chassis using the provided cable ties.
Mount the black converter box on the driver side, in a flat spot inside the vehicle near the taillight, using the provided double-sided tape. The box must be mounted in a protected area. Failure to mount it in a protected area can cause loss of warranty, product failure, overheating, and potential fire.
Locate a grounding point near the converter box, such as an existing screw or bolt in the vehicle frame. The area should be free from rust, dirt, and paint; use an abrasive pad or paper to clean it if necessary. Secure the white ground wire with its ring terminal to the existing fastener, or drill a 3/32-inch pilot hole and use the provided ground screw.
Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. Disconnect the negative battery terminal before wiring the power wire. Route the power wire to avoid pinch points and hot or rotating components. Use a ring terminal for the battery connection. Do not exceed the product rating or tow vehicle lamp load rating. Ensure the converter box is mounted in a protected area.
After connecting the 12-volt power wire to the harness, verify that the harness is functioning by attaching the battery and testing with a test light, 4-flat tester, or a functioning trailer. The manual states that once installed, you should test for proper function using one of these methods.
Reinstall all items removed during installation. If the negative battery terminal was disconnected at the beginning, reconnect it. Install the provided 4-flat dust cover to help prevent corrosion. When not in use, roll up and store the 4-flat connector in a convenient, out-of-the-way location inside the trunk. Secure any loose wires with the provided cable ties.
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 prevent electrical issues.
CURT Group stands behind its products with industry-leading warranties. To register your purchase and access warranty information, visit warranty.curtgroup.com/surveys. Loss of warranty can occur if the product rating is exceeded, the converter box is not mounted in a protected area, or the 10-amp fuse protection is exceeded.
The CURT 56439 is designed for passenger cars with 12-volt negative ground electrical systems. Consult your vehicle owner's manual or contact the vehicle manufacturer to confirm compatibility.
Yes. Disconnect the negative battery terminal before beginning installation and keep it disconnected until all wiring is complete.
The battery connection must be fuse-protected with a 10-amp maximum fuse. The kit includes a fuse holder and 10-amp fuse; install it after all other steps are complete.
Periodically inspect all wires and connections to ensure there is no visible damage or loose connections.
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