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| Finish | GLOSS BLACK POWDER COAT |
| Main Body Shape | Square |
| Material | Carbon Steel |
| Mount Type Description | Blank |
| Receiver Tube Size | 2 IN |
| Side Application Type Description | Blank |
| Tongue Weight (TW) | 600 LB |
| Warranty | Limited Lifetime Warranty (One-Year Finish, One-Year Parts) |
| Weight Carrying Capacity (WC) | 4,000 LB |
| Weight Distribution (WD) | 5,000 LB |
| Weight Distribution Tongue Weight (WDTW) | 600 LB |
| Electrical System Type | 2W |
| Finish | N/A |
| Material | Blank |
| Mount Type Description | Blank |
| Output Type | 4-Way Flat |
| Side Application Type Description | Blank |
| T-Connector Location | S5 |
| Warranty | One-Year Limited Warranty |
| Ball Diameter | 2 IN |
| 10282 | Yes |
| Color | Black |
| Drop | 2 IN |
| Gross Trailer Weight (GTW) | 7,500 LB |
| Material | Carbon Steel |
| Receiver Tube Size | 2 IN |
| Shank Diameter | 2 IN |
| Tongue Weight (TW) | 750 LB |
| Truckload Dom Pickup Location | Eau Claire, Wi |
| Warranty | Limited Lifetime Warranty (One-Year Finish, One-Year Parts) |
Notes:
Notes:
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 888-634-9494Lifetime
1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2016 - 2020 | Lexus RX450h | Excluding F Sport |
The 16-20 Lexus RX450h Excluding F Sport 2 CURT Trailer Hitch + Assure Proportional Brake Controller Kit HBCW1710 (Part #HBCW1710) fits the following vehicles: 2016-2020 Lexus RX450h. Always verify your specific year, make, and model before ordering.
Yes, the 16-20 Lexus RX450h Excluding F Sport 2 CURT Trailer Hitch + Assure Proportional Brake Controller Kit HBCW1710 (Part #HBCW1710) is designed to fit the 2016-2020 Lexus RX450h.
The 16-20 Lexus RX450h Excluding F Sport 2 CURT Trailer Hitch + Assure Proportional Brake Controller Kit HBCW1710 (Part #HBCW1710) fits 2016-2020 Lexus RX450h models. The 2020 model year is the last year covered by this part number. For newer models, check for an updated version.
The 16-20 Lexus RX450h Excluding F Sport 2 CURT Trailer Hitch + Assure Proportional Brake Controller Kit HBCW1710 (Part #HBCW1710) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The part number is 13143. This hitch is designed for Lexus RX 350 (including F Sport) and RX 450H models from 2010–2015.
Yes, part number 13143 fits Lexus RX 350 F Sport models from 2010–2015. F Sport models require additional installation steps including placement of a support plate under the passenger side plate and relocation of the support bar, which will be rotated upside down from its original position.
Yes, part number 13143 is designed for Lexus RX 450H models from 2010–2015.
When used as a weight-carrying hitch, the gross load capacity is 4,000 lbs. trailer weight and 600 lbs. tongue weight. When used as a weight-distribution hitch, the gross load capacity is 5,000 lbs. trailer weight and 600 lbs. tongue weight. Do not exceed your vehicle manufacturer's recommended towing capacity.
The hitch weight is 35 lbs.
The hitch includes 6 M12 – 1.25 x 40 hex bolts and 6 conical toothed washers (1/2"). The hitch uses existing weldnuts in the frame rails (3 each side) and existing hole plugs. For F Sport models, the support bar is reattached using existing nuts removed from the tow loops.
Required tools are: ratchet, torque wrench, 9-inch socket extension, 10mm socket, 17mm socket, 19mm socket, screwdriver (flat head), and aviation shears. A rotary tool may be used as an alternative to aviation shears for trimming the fascia. Safety glasses must be worn at all times during installation.
No, drilling is not required. The hitch uses existing weldnuts in the frame rails and existing hole plugs.
Yes, trimming is required. The underbody panel and lower fascia must be trimmed to accommodate the hitch and support bar (on F Sport models). Use masking tape to layout the trim area, then use a rotary tool or aviation shears to trim. The fascia trim area is 4.50 inches wide by 6.00 inches tall. Consult the vehicle owner prior to trimming.
Two people may be required to ease installation. The manual recommends reading all instructions thoroughly before beginning and notes that using proper tools will greatly improve the quality of the install and reduce the time required.
Professional installation time is approximately 70 minutes. Novice (DIY) installation time is approximately 38 minutes. Actual time may vary depending on experience and familiarity with the vehicle.
All 12mm fasteners must be torqued to 86 ft-lbs. This applies to the M12 – 1.25 x 40 hex bolts that secure the hitch to the frame rail weldnuts.
Tow loop reattachment is optional on non-F Sport models. However, tow loops cannot be reattached on F Sport models. The existing tow loop fasteners are removed during installation and should be returned to the vehicle owner.
On F Sport models, the support plate is placed under the passenger side plate. The hitch is clamped between the frame and the support plate. The support bar is then attached to the hitch and support plate using existing nuts removed from the tow loops.
The support bar is rotated upside down (180 degrees) from how it was originally attached to the tow loops. It is then attached to the hitch and support plate using the existing nuts that were removed from the tow loops.
The exhaust may need to be temporarily lowered to ease installation. If lowered, the exhaust must be supported as needed to prevent damage. The exhaust should be reinstalled after the hitch is secured in position.
The installation sequence is: (1) remove lower fascia by removing 13 fasteners; (2) temporarily lower exhaust if needed; (3) remove existing hole plugs from frame rails; (4) on F Sport models, remove support bar by removing four nuts; (5) remove existing tow loop fasteners and tow loops; (6) raise hitch into position, aligning with existing weldnuts; (7) secure hitch with 12mm bolts and 1/2" conical toothed washers; (8) on F Sport models, attach support bar using existing nuts; (9) torque all 12mm fasteners to 86 ft-lbs; (10) reinstall exhaust if lowered; (11) trim fascia as needed and reattach.
After installation, verify that the fascia fits properly and has adequate clearance. Periodically check that all fasteners are tight and that all structural components are sound. Do not exceed your vehicle manufacturer's recommended towing capacity.
Periodically check the receiver hitch to ensure that all fasteners are tight and that all structural components are sound. The manual does not specify an exact inspection interval, but regular checks are recommended to maintain safe operation.
Never exceed your vehicle manufacturer's recommended towing capacity. The hitch itself supports up to 4,000 lbs. trailer weight and 600 lbs. tongue weight as a weight-carrying hitch, or 5,000 lbs. trailer weight and 600 lbs. tongue weight as a weight-distribution hitch, but your vehicle's manufacturer specifications take precedence.
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. Read all instructions thoroughly before beginning installation.
Yes, part number 13143 is designed for Lexus RX 350 (including F Sport) and RX 450H models from 2010–2015.
No, drilling is not required. The hitch uses existing weldnuts in the frame rails.
Professional installation takes approximately 70 minutes. Novice DIY installation takes approximately 38 minutes.
Safety glasses must be worn at all times during installation. If hesitant, contact an authorized Curt installer. Read all instructions thoroughly before beginning.
If the fascia does not fit properly after trimming, trim further as needed and try again. The fascia trim area should be approximately 4.50 inches wide by 6.00 inches tall. Check for proper fit and clearance before reattaching the fascia using the existing hardware.
Ensure the hitch plates are properly aligned with the existing weldnuts in the frame rails. Start with the passenger side plate and pull down on the exhaust to create clearance. If weldnuts require cleaning, use a rotary tool to clean them. Verify that the holes in the frame rails align with the holes in the hitch before inserting the bolts.
The kit includes: one 30 amp auto-resetting circuit breaker, two #10 ring terminals, two 3/8" ring terminals, two 1/2" ring terminals, three 12-10 gauge butt connectors, 10 feet of 10 ga black/white duplex wire, 20 feet of 10 ga blue cross-linked wire, and eight 8.5" cable ties.
Yes, but with a critical difference: these vehicles require the stop signal wire to be spliced to the light green wire on the turn signal harness connector under the dash, not to the brake pedal switch. Do NOT connect to the red wire with green stripe, as serious damage may occur. All other vehicles connect to the brake pedal switch instead.
You will need: a test light, wire stripper/cutter, crimp tool, and 3/8" box end wrench. The test light is used to identify the cold (switched) side of the brake pedal switch.
Yes. The manual cautions to disconnect the tow vehicle's negative battery cable before installation. Reconnect it only in the final step after all wiring is complete.
Mount the 30 amp circuit breaker near the tow vehicle's positive battery terminal. This keeps the power wire run as short as possible and protects the circuit.
Use 10 gauge (10 ga) black wire from the duplex wire included in the kit. Strip 3/8" of insulation from each end. Crimp a #10 ring terminal to the end that attaches to the circuit breaker stud labeled 'BAT', and a 3/8" or 1/2" ring terminal (sized to fit your battery terminal) to the end that attaches to the positive battery terminal.
Feed the 10 ga duplex wire from the brake controller in the cockpit through the firewall into the engine compartment toward the battery. Cut to length as needed. At the battery end, crimp a 3/8" or 1/2" ring terminal to the white wire and a #10 ring terminal to the black wire. Attach the black wire to the circuit breaker stud labeled 'AUX' and tighten the nut with a 3/8" box end wrench.
When passing the duplex wire through the firewall into the engine compartment, use an existing grommet, add a new grommet, or fill the hole with silicone rubber to insulate and protect the wire. The same protection applies when passing the blue cross-linked wire through any sheet metal at the rear of the vehicle.
In the cockpit, attach the black duplex wire to the brake controller's battery wire (typically black) and the white duplex wire to the brake controller's ground wire (typically white). Use either one of the supplied yellow butt connectors or solder the leads together and insulate with heat shrink tubing.
Locate the brake pedal switch on the back side of the vehicle's brake pedal. Use a test light or volt meter to identify the 'cold' or switched side—this terminal will only show power when the brake pedal is depressed. Attach the stop signal wire (typically red) from the brake controller to the cold side of the switch using a wire tap.
Locate the semi-circle turn signal harness connector on the steering column under the dash. It has two rows of wires: a row of four and a row of seven. Attach the stop signal wire (typically red) from the brake controller to the light green wire using a wire tap. Do NOT connect to the red wire with green stripe, as serious damage may occur.
Feed the 10 ga blue cross-linked wire from the brake controller to the trailer connector at the rear of the vehicle, taking up any slack in the wire. When passing through any sheet metal, use an existing grommet, add a new grommet, or fill the hole with silicone rubber to protect the wire.
Attach the blue cross-linked wire to the brake controller's electric brake wire (typically blue) using one of the supplied yellow butt connectors or by soldering and insulating with heat shrink tubing. At the rear of the vehicle, trim any loose blue wire and attach it to the trailer connector's electric brake terminal. Refer to the trailer connector's wiring diagram for the correct terminal location.
Secure any loose wires with the cable ties provided. Connect the black power wire from the circuit breaker to the positive side of the battery. Connect the white ground wire from the brake controller to the negative side of the battery. Finally, reconnect the tow vehicle's negative battery cable to the battery.
The circuit breaker is 30 amps and auto-resetting. It must be mounted near the positive battery terminal and connected directly to the positive battery terminal via the included black 10 gauge wire.
Use a 3/8" box end wrench to tighten the nuts on the circuit breaker studs labeled 'BAT' and 'AUX'.
The kit includes 10 feet of 10 gauge black/white duplex wire for the battery and brake controller connections, and 20 feet of 10 gauge blue cross-linked wire for the electric brake signal to the trailer connector.
Black wire connects to the positive battery and circuit breaker. White wire connects to the brake controller ground and negative battery. Red wire is the stop signal wire from the brake controller. Blue wire is the electric brake signal wire. The manual notes these are 'typically' these colours but recommends confirming with your brake controller documentation.
Yes. You can solder the leads together and insulate with heat shrink tubing as an alternative to using the supplied yellow butt connectors. This applies to connections between the duplex wire and the brake controller wires, and between the blue cross-linked wire and the brake controller.
The black power wire must connect directly to the positive battery terminal via the 30 amp circuit breaker. Connecting to the fuse panel or any other accessory wiring may damage vehicle wiring and cause trailer brake failure. The circuit breaker protects the circuit and must be the only protection between the battery and the brake control system.
Do NOT connect the stop signal wire to the red wire with green stripe on the turn signal harness. Serious damage may occur. Connect only to the light green wire. Also, do not connect to the brake pedal switch on these vehicles; use the turn signal harness instead.
The kit is universal but requires an existing trailer connector and brake controller. 1989-1991 Ford E & F-Series with ABS use a different stop signal connection (turn signal harness instead of brake pedal switch). Consult your brake controller documentation for compatibility.
No drilling is required. The kit connects to existing components: the battery, brake controller, brake pedal switch (or turn signal harness on 1989-1991 Ford E & F-Series with ABS), and trailer connector.
Do NOT connect the stop signal wire to the red wire with green stripe on the turn signal harness—serious damage may occur. Connect to the light green wire instead, and do not use the brake pedal switch.
Connecting to the fuse panel or accessory wiring may damage vehicle wiring and cause trailer brake failure. The 30 amp circuit breaker must be the only protection between the battery and the brake control system.
The Curt 56083 custom wiring connector is designed for Lexus RX 350 models equipped with a tow package. If your RX 350 has the tow package, the connector will fit. If you are unsure whether your vehicle has the tow package, check your vehicle owner's manual or contact the vehicle manufacturer.
Yes, the Curt 56083 custom wiring connector is compatible with the Lexus RX 450h.
Some RX 350 models may need to be programmed to accept the custom wiring connector. This programming must be done by a Lexus dealer. Check with your dealer to determine whether your specific vehicle requires programming.
The Curt 56083 includes the custom wiring connector, a protective cap for the vehicle plug, cable ties for securing loose wires, and a 4-flat dust cover to help prevent corrosion.
1. Locate the vehicle taillight wiring connector and remove the protective cap. 2. Insert the custom wiring connector end into the vehicle connector, ensuring the connectors are fully inserted with locking tabs in place. 3. Route the 4-flat connector to the center of the vehicle and out of the trunk when in use; roll up and store inside the trunk when not in use. Secure loose wires with the provided cable ties. 4. Some models may require dealer programming. 5. Reinstall all removed items and install the provided 4-flat dust cover.
The vehicle taillight wiring connector is located behind the driver side rear bumper. The manual refers to this location as 'S5' and shows a representative vehicle diagram, but for specific location details on your model, check your vehicle owner's manual or contact the vehicle manufacturer.
When not in use, roll up the 4-flat connector and store it in a convenient, out-of-the-way location inside the trunk. When in use, route the 4-flat to the center of the vehicle and out of the trunk. Secure any loose wires with the provided cable ties.
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. For the specific product rating, refer to the product documentation or contact Curt Manufacturing.
Test 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.
The provided 4-flat dust cover helps prevent corrosion of the connector. Install it after completing the wiring connector installation.
Yes, the Curt 56083 is designed for Lexus RX 350 with tow package and RX 450h. Some models may require dealer programming.
The manual lists no tools as needed for installation. The connector plugs directly into the vehicle taillight wiring connector.
The manual does not specify whether bumper removal is required. The connector is located behind the driver side rear bumper. Check your vehicle owner's manual or contact the vehicle manufacturer for access instructions.
Do not exceed the product rating or tow vehicle lamp load rating, whichever is lower. Exceeding the rating can cause loss of warranty, overheating and potential fire. Refer to product documentation for the specific rating.
Test for proper function using a test light or by connecting a properly wired trailer.
The 4-way flat electrical adapter converts a vehicle's 4-way flat trailer connector to other trailer connector types (6-way round, 7-way RV blade, or dual 4-way flat). This allows you to tow trailers with different connector styles. Single-output models (57184, 57183, 57185, 57626, 57676) convert to one connector type; dual-output models (57604, 57624, 57672, 57674, 57102) provide two different connector outputs simultaneously.
Yes. Your vehicle must be equipped with a 4-way flat trailer connector. If your vehicle does not have one, you will need to install a custom wiring harness or other 4-way flat trailer connector before installing this adapter.
Both convert a 4-way flat connector to a 7-way RV blade. The difference is that 57185 includes a mounting bracket, while 57184 does not.
Both convert a 4-way flat connector to a 6-way round. The difference is that 57626 includes a mounting bracket, while 57183 does not.
Curt offers three dual-output models that provide both a 4-way flat and a 7-way RV blade output: part numbers 57672, 57674, and 57102. All three include a mounting bracket.
Curt offers two dual-output models that provide both a 4-way flat and a 6-way round output: part numbers 57604 and 57624. Both include a mounting bracket.
You will need: a 1/8" drill bit, drill, Phillips screwdriver, wire stripper, cutting tool, terminal crimpers, and a test light. The manual also lists three self-tapping screws (#10 - 1/2") as required, though these are not included with the product.
No. The three self-tapping screws (#10 - 1/2") used to attach the mounting bracket are not included and must be purchased separately.
Mount the combination harness in a location on the tow vehicle that is within reach of the trailer's wiring harness and near the center of the vehicle. The mounting bracket (if included) should be attached to the vehicle's bumper or other suitable surface.
Yes. You must drill two 1/8" holes: one for the grounding point and one (or more) for the mounting bracket. Before drilling, you must check for brake lines, fuel lines, wiring and other components that may be hidden behind or under the surface to avoid damage.
No. You must never attach the mounting bracket directly to the hitch by cutting, welding or drilling into the hitch. Mount it to the vehicle's bumper or other suitable surface instead.
The adapter uses four wires: Yellow (auxiliary or back-up lights), Blue (electric brakes), Black (positive power with appropriate inline fuse), and White (ground). All wires except black and white must be connected using 12 gauge (minimum) wire and butt connectors to the appropriate vehicle functions.
The white wire is the ground connection. It must be attached with a ring terminal to a 1/8" hole drilled in a suitable grounding point on the vehicle using a #10 - 1/2" self-tapping screw. This ground connection is required for the harness to work properly. The white wire on the vehicle's 4-way flat connector does not support the ground (-) functions of the combination harness.
Yes. The black wire (positive power) must be connected with an appropriate inline fuse. The manual does not specify the fuse amperage rating.
Use 12 gauge (minimum) wire for all connections. The manual specifies this minimum gauge for the remaining wires (yellow, blue, and black) when connecting to appropriate vehicle functions.
Failing to properly ground the product can cause loss of warranty, overheating and potential fire. The white wire must be securely attached to a clean grounding point using a #10 - 1/2" self-tapping screw in a 1/8" hole. The area must be clean of dirt, debris or undercoating.
Before drilling, you must check for brake lines, fuel lines, wiring and any other components that may be hidden behind or under the surface. Drilling into these components can cause damage and personal injury.
Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower. Exceeding either rating can cause damage or unsafe operation.
Confirm proper function with a test light or by using a properly functioning trailer. This verifies that all connections are working correctly before towing.
Secure any loose wires using cable ties or equivalent product to prevent them from moving, catching on components, or becoming damaged.
Your vehicle must have a 4-way flat trailer connector. If it does not, you will need to install a custom wiring harness or other 4-way flat connector first. Check the part number table to confirm the adapter converts to the connector type you need.
You must purchase three #10 - 1/2" self-tapping screws for the mounting bracket. You will also need an appropriate inline fuse for the black (positive power) wire; the manual does not specify the amperage.
Yes, you must drill two 1/8" holes: one for grounding and one for the mounting bracket. Before drilling, check for brake lines, fuel lines and wiring behind the surface. Never drill into the hitch.
Yellow = auxiliary/back-up lights; Blue = electric brakes; Black = positive power (needs inline fuse); White = ground (must be properly grounded or warranty is void and fire risk exists). Use 12 gauge minimum wire and butt connectors.
Proper grounding of the white wire is critical. Failing to ground it properly can cause loss of warranty, overheating and fire. The grounding point must be clean of dirt, debris and undercoating.
Test with a test light or by using a properly functioning trailer to confirm all connections work. Secure loose wires with cable ties.
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