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2017 - 2022 Toyota Prius Prime
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Complete CURT Class 1 1-1/4" trailer hitch and 5-flat wiring kit (with 4-way to 5-way adapter for surge brakes) engineered for the 2017 - 2022 Toyota Prius Prime. 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 Prime (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 |
|---|---|---|
| 2017 - 2022 | Toyota Prius Prime | — |
The 17 - 22 Toyota Prius Prime Curt 1-1/4" Class 1 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 11473 (Part #5W-CHW-2917) fits the following vehicles: 2017-2022 Toyota Prius Prime. Always verify your specific year, make, and model before ordering.
The 17 - 22 Toyota Prius Prime Curt 1-1/4" Class 1 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 11473 (Part #5W-CHW-2917) fits 2017-2022 Toyota Prius Prime models. The 2022 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the 17 - 22 Toyota Prius Prime Curt 1-1/4" Class 1 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 11473 (Part #5W-CHW-2917) is designed to fit the 2017-2022 Toyota Prius Prime.
The 17 - 22 Toyota Prius Prime Curt 1-1/4" Class 1 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 11473 (Part #5W-CHW-2917) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
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.
Yes, CURT part 56371 is designed for the Toyota Prius Prime. This is a custom wiring harness for passenger car applications. Verify your vehicle matches the application before purchasing.
The CURT 56371 is a custom wiring harness that connects your vehicle's taillight circuits to a 4-flat trailer connector. It allows you to tow a trailer with integrated lights on your Toyota Prius Prime.
You will need: ratchet, 10mm socket, flat blade screwdriver, panel trim removal tool, wire stripper, wire crimper, and cutting tool. A test light or properly wired trailer is also needed to test the harness after installation.
The harness includes: custom wiring harness with red, brown, yellow, green and black wires; a white ground wire with ring terminal; a provided screw for grounding; a converter box; double-sided tape; sealant; cable ties; and a 4-flat dust cover.
The manual provides step-by-step instructions for DIY installation. However, the installation involves accessing the vehicle's electrical system and taillight connectors. If you are not comfortable working with vehicle wiring or removing interior trim panels, professional installation is recommended.
Open the vehicle trunk and remove all trunk floor coverings. Then remove the push fasteners securing the center trunk flooring and remove both side storage trays to access the taillight wiring connectors.
Remove the rear scuff panel and side trunk liner on the driver side to locate the vehicle taillight wiring harness connectors. Separate the connectors from the taillight housing carefully, avoiding damage to the locking tabs. Insert the custom wiring harness end with red and brown wires between the separated connectors, ensuring they are fully inserted with locking tabs in place.
Locate the center trim panel on the outside of the vehicle under the rear bumper and remove its fasteners. Remove the trim panel to locate the vehicle taillight wiring harness connectors. Separate the connectors carefully, avoiding damage to the locking tabs. Insert the custom wiring harness end with yellow and green wires between the separated connectors, ensuring they are fully inserted with locking tabs in place.
You should first locate a suitable grounding point near the connector, such as an existing screw with nut in the vehicle frame. If no suitable point exists, you may drill a 3/32" pilot hole for the provided screw. The area must be free of rust, dirt and paint. Always check for hidden items behind or under surfaces before drilling to avoid damage and personal injury.
Yes. Locate the grommet behind the rear-center of the trunk pan where vehicle wiring passes through to the rear bumper rail connectors. Remove the grommet and cut a slit large enough to route the custom wiring harness through. After routing the harness, reseat the grommet and use the provided sealant to seal the cut and around all wires.
The harness has two ends: one with red and brown wires connects to the driver side taillight, one with yellow and green wires connects to the center rear bumper taillight, and a black power wire connects to the vehicle battery (routing details are on the included CME-PCL-INS sheet). A white ground wire with ring terminal grounds to the vehicle frame.
The battery connection must be fuse-protected with a 10-amp maximum fuse. Exceeding this rating can cause loss of warranty, overheating and potential fire. Do not exceed the product rating or 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.
Test the wiring harness for proper function using a test light or by connecting a properly wired trailer. All steps must be followed to ensure the harness functions properly. Reinstall all items removed during installation and install the provided 4-flat dust cover to help prevent corrosion.
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.
Locate a flat spot inside the vehicle near the taillight and adhere the black converter box using the provided double-sided tape.
After routing the custom wiring harness through the grommet opening and reseating the grommet, use the provided sealant to seal the cut in the grommet and around all the wires to prevent water intrusion.
Yes, the CURT 56371 is designed specifically for the Toyota Prius Prime passenger car configuration.
You need: ratchet, 10mm socket, flat blade screwdriver, panel trim removal tool, wire stripper, wire crimper, and cutting tool. A test light or properly wired trailer is needed to test after installation.
Drilling may be required only if no suitable existing grounding point is available on the vehicle frame. If drilling is needed, a 3/32" pilot hole is drilled for the provided ground screw. Cutting the grommet is required.
A 10-amp maximum fuse is required. Exceeding this rating can cause loss of warranty, overheating and potential fire.
Test for proper function using a test light or by connecting a properly wired trailer to the 4-flat connector.
Signal circuits: 3.0 amps per side. Tail/running circuits: 6.0 amps total. Do not exceed these ratings or the vehicle's lamp load rating, whichever is lower.
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