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2021 - 2025 Toyota Sienna
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Complete CURT Class 3 2" trailer hitch and 4-flat custom wiring kit engineered for the 2021 - 2025 Toyota Sienna. 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 Toyota Sienna (see application info to verify vehicle compatibility). It provides a weight carrying capacity of 3,500 lbs. GTW and 350 lbs. TW. It is also compatible with a weight distribution hitch for level towing and a rating of 5,000 lbs. WD and 500 lbs. WDTW. 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.
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 Sienna (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®.'
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Call 888-634-9494One-Year Limited
1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2021 - 2025 | Toyota Sienna | — |
The 21 - 24 Toyota Sienna Curt 2", Class 3 Trailer Tow Hitch + 4-flat Wiring Kit 13470 (Part #CHW-2935) fits the following vehicles: 2021-2024 Toyota Sienna. Always verify your specific year, make, and model before ordering.
The 21 - 24 Toyota Sienna Curt 2", Class 3 Trailer Tow Hitch + 4-flat Wiring Kit 13470 (Part #CHW-2935) fits 2021-2024 Toyota Sienna models. The 2024 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the 21 - 24 Toyota Sienna Curt 2", Class 3 Trailer Tow Hitch + 4-flat Wiring Kit 13470 (Part #CHW-2935) is designed to fit the 2021-2024 Toyota Sienna.
The 21 - 24 Toyota Sienna Curt 2", Class 3 Trailer Tow Hitch + 4-flat Wiring Kit 13470 (Part #CHW-2935) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The CURT 13470 has a gross trailer weight (GTW) capacity of 3,500 lbs and a tongue weight (TW) capacity of 350 lbs. If using weight distribution, the weight distribution (WD) capacity is 5,000 lbs with a weight distribution tongue weight (WDTW) capacity of 500 lbs.
No, the CURT 13470 requires no drilling. Installation uses existing weldnuts on the vehicle frame rails. The installation does require trimming of the underbody panel.
Required tools are: ratchet, torque wrench, 19mm socket, 10mm socket, flathead screwdriver, aviation shears, and 6" socket extension. A tools reference guide is available at curtmfg.com/trailer-hitch-installation.
The kit includes 6 hex bolts (M12-1.25 x 40mm, Class 10.9) and 6 conical-toothed washers (1/2"). These fasteners attach the hitch to the existing weldnuts on both frame rails (three bolts and washers per side).
Remove the three hole plugs from the frame rails. To clean debris from the weldnuts, spray lubricant or compressed air into each hole. For heavy debris, use a wire brush, taking care not to damage the threads.
The conical-toothed washers should be oriented with the teeth facing the hitch side plate, as shown in the assembly diagram on page 2. The washer sits between the hex bolt head and the hitch mounting surface.
1. Remove the underbody panel from the passenger side by removing three push fasteners and three screws using a 10mm socket. 2. Remove the three hole plugs and clean the weldnuts in each frame rail. 3. Raise the trailer hitch into position and secure with three M12 hex bolts and conical-toothed washers on each side. 4. Torque all M12 bolts to 86 lb-ft. 5. Trim the underbody panel using the grooves as guides, then reinstall using factory hardware.
The underbody panel must be trimmed using the grooves on the panel as guides. The trim diagram shows cuts of 7-1/4" and 3". The grooves on the panel serve as the primary reference for the trim line. After trimming, the panel is reinstalled using the factory hardware.
All M12-1.25 x 40mm hex bolts must be torqued to 86 lb-ft. Use a torque wrench to ensure proper tightness and prevent damage to the product or vehicle.
Safety glasses must be worn at all times during installation. Never exceed the vehicle manufacturer's recommended towing capacity when using the hitch. After installation, perform periodic inspection to ensure all mounting hardware remains tight and structural components are secure.
Periodic inspection of the trailer hitch should be performed to ensure all mounting hardware remains tight and structural components are secure. This helps prevent damage and ensures safe towing.
No drilling required. The hitch uses existing weldnuts on the vehicle frame rails. Trimming of the underbody panel is required.
Ratchet, torque wrench, 19mm and 10mm sockets, flathead screwdriver, aviation shears, and 6" socket extension.
Torque all M12 hex bolts to 86 lb-ft using a torque wrench.
Tongue weight capacity is 350 lbs (or 500 lbs with weight distribution). Gross trailer weight capacity is 3,500 lbs (or 5,000 lbs with weight distribution).
Yes, the passenger-side underbody panel must be removed to access the frame rail weldnuts. It is reinstalled after the hitch is secured and the panel is trimmed.
Yes. The 56489 is designed for SUVs and vans with an interior spare tire. The installation process for vehicles with an interior spare tire is covered in Step 2A and Step 5A of the manual. You will remove the spare tire panel and locate the white connector at the bottom rear of the spare tire opening to connect the custom wiring harness.
Yes. The 56489 is designed for SUVs and vans with a fix-a-flat kit. For these vehicles, you will locate the cargo hooks in the skid plate of the rear hatch opening, remove the two cargo hook fasteners using a 10mm socket (Step 2B), and then locate the white connector in the back corner near the floor to connect the custom wiring harness (Step 5B).
Yes. Step 1 of the installation requires you to open the rear hatch, locate the vehicle battery in the passenger-side compartment, and remove the ground wire before proceeding with any other steps.
Three tools are required: a ratchet, a panel trim removal tool, and a 10mm socket. The trim removal tool is used to loosen push fasteners in the skid plate and interior side panel. The 10mm socket is used to remove the two cargo hook fasteners if your vehicle has a fix-a-flat kit.
The white connector is the factory connector in your vehicle where the custom wiring harness connects. For vehicles with an interior spare tire, it is located at the bottom rear of the spare tire opening (Step 5A). For vehicles with a fix-a-flat kit, it is located in the back corner near the floor (Step 5B). The connector may be taped to another harness; if so, remove the tape carefully without damaging any wires before connecting the custom harness.
Locate a mounting spot for the module and use the supplied double-sided tape and/or zip ties to secure it to the vehicle. The module should be mounted in the same area where you connected the white connector (either the spare tire opening for Step 5A vehicles, or the back corner near the floor for Step 5B vehicles).
Yes. After connecting the custom wiring harness and securing the module, you must add the fuse to the fuse holder on the custom harness. The fuse is supplied with the product.
After adding the fuse to the fuse holder, verify that the harness is functioning by attaching the 4-flat connector to any trailer with functioning lights. Once testing is complete, roll up the 4-flat and store it in the spare tire opening.
Route the 4-flat along the lower rear hatch area and secure it in place with zip ties as needed. After routing, reinstall the driver-side interior panel and skid plate.
Do not lay tools across the positive battery terminal (typically noted with red covers or a red '+' symbol). This can cause a ground short, resulting in sparks and/or electrical shocks. Additionally, do not exceed the product rating or tow vehicle lamp load rating, whichever is lower.
Periodic inspection of all wires and connections should be performed to ensure there is no visible damage or loose connections.
The installation difficulty is rated as Easy. However, the actual difficulty may vary depending on the installer's level of expertise, the condition of the vehicle, and whether proper tools and equipment are available.
If your vehicle has an interior spare tire located on the driver side, remove the panel by pulling it to the center of the vehicle and lifting it out (Step 2A). Set it aside during installation. You will reinstall it after the wiring harness is connected and routed.
For vehicles with a fix-a-flat kit, locate the cargo hooks in the skid plate of the rear hatch opening and use a 10mm socket to remove the two cargo hook fasteners (Step 2B). Additionally, you will need to loosen the push fasteners in the skid plate and the cargo net tie point on the driver side (Step 3), and loosen the push fasteners on the interior side panel on the driver side (Step 4).
The cargo net tie point is located on the driver side of the skid plate. It has threads on it and must be loosened during installation (Step 3). Use a ratchet to loosen it.
The 56489 is designed for SUVs and vans with either an interior spare tire or a fix-a-flat kit. Confirm your vehicle has one of these features before purchasing.
You need a ratchet, a panel trim removal tool, and a 10mm socket. These are the only tools required for installation.
Yes. You must disconnect the ground wire from the vehicle battery in the passenger-side compartment before beginning installation.
After adding the fuse, attach the 4-flat connector to a trailer with functioning lights to verify the harness is working properly.
Do not lay tools across the positive battery terminal, as this can cause a short circuit, sparks, and electrical shocks. Do not exceed the product rating or tow vehicle lamp load rating.
Periodically inspect all wires and connections to ensure there is no visible damage or loose connections.
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