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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 2015 Ford Mustang Convertible, excluding Shelby. 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 Ford Mustang (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 Ford Mustang (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 |
|---|---|---|
| 2015 | Ford Mustang | Convertible, excluding Shelby |
Yes, the 2015 Ford Mustang Convertible, excluding Shelby Curt 1-1/4" Class 1 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 11405 (Part #5W-CHW-1254) is designed to fit the 2015 Ford Mustang.
The 2015 Ford Mustang Convertible, excluding Shelby Curt 1-1/4" Class 1 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 11405 (Part #5W-CHW-1254) fits 2015 Ford Mustang models. The 2015 model year is the last year covered by this part number. For newer models, check for an updated version.
The 2015 Ford Mustang Convertible, excluding Shelby Curt 1-1/4" Class 1 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 11405 (Part #5W-CHW-1254) fits the following vehicles: 2015 Ford Mustang. Always verify your specific year, make, and model before ordering.
The 2015 Ford Mustang Convertible, excluding Shelby Curt 1-1/4" Class 1 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 11405 (Part #5W-CHW-1254) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
Yes, the CURT 11405 Class II receiver hitch is designed for 2015-Present Ford Mustang Coupe and Convertible models. It fits both body styles. Verify your vehicle year and model match before purchasing.
Yes, the CURT 11405 is designed for both Mustang Coupe and Convertible models. Convertible installation requires additional steps: you must temporarily remove the lower support braces (a V-shaped structure under the spare tire well and in front of the rear wheels) before installing the hitch, then reinstall them afterward.
The CURT 11405 has a maximum trailer weight capacity of 2,000 lbs and a tongue weight capacity of 200 lbs minimum. Never exceed your vehicle manufacturer's recommended towing capacity.
The CURT 11405 is designed for use with ball mount #45521. Euro ball mounts #45571 (1 7/8" ball) and #45572 (2" ball) are also available as options.
Required tools are: 13mm socket (for exhaust bolts), 11/16" socket (for hitch fasteners), socket extension (6"), ratchet, torque wrench, and pry bar. A 15mm socket is also needed for Convertible models to remove support braces. Safety glasses must be worn at all times during installation.
No, drilling is not required. The CURT 11405 uses existing holes in the frame rails and access holes in the vehicle for mounting.
The manual does not specify whether the battery must be disconnected. Contact CURT Technical Support at 877.287.8634 for clarification on this step.
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 installation quality and reduce time required.
Installation time varies by experience level. Novice installers should allow approximately 60 minutes, while professional installers typically complete the installation in 30 minutes.
Yes. The first installation step is to lower the exhaust by removing 6 M8 bolts from the hanger brackets using a 13mm socket. After the hitch is installed and secured, the exhaust is raised back into position and the hanger brackets are reinstalled.
The CURT 11405 uses existing holes in both the driver side and passenger side frame rails, plus access holes on both sides. The installation diagram on page 2 shows the location of these holes. The fishwire technique is used to feed the mounting bolts through these holes.
The fishwire technique uses 7/16" fishwire to pull the mounting bolts through the frame rail holes. In step 3, you thread 8 carriage bolts and 8 spacers through the access holes. In step 4, you raise the hitch into position and feed the fishwire ends through the hitch frame bracket mounting holes, then use the fishwires to pull the bolts through the frame rail holes. The bolts are then secured with flange nuts.
All 7/16" hardware (carriage bolts and flange nuts) must be torqued to 59 lb-ft. Use a torque wrench to achieve this specification.
The hitch uses eight 7/16-14 UNC carriage bolts, 1-1/4" long, Grade 8, zinc-plated (part number 10-10281). These are secured with eight 7/16-14 UNC serrated flange nuts, Grade 8, zinc-plated (part number 20-00103).
Eight square hole spacers (part number CM-SP2), measuring 0.250" x 0.88" x 2.25", are included. These spacers are threaded onto the carriage bolts during the fishwire step of installation.
All non-trailer (wheel-less) loads applied to this hitch must be supported by CURT 18050 stabilizing straps. Refer to the CURT catalog or visit www.curtmfg.com for further information on these straps.
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.
Periodically check the receiver hitch to ensure all fasteners are tight and all structural components are sound. This maintenance is important for safe operation.
The manual states that if you are hesitant to undertake this task on your own, you should contact an authorized CURT installer for additional assistance. The installation is rated as moderate difficulty for coupes and moderate to challenging for convertibles.
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. Warranty is voided by alteration, misuse, or improper installation.
Yes, the CURT 11405 is designed for 2015-Present Ford Mustang Coupe and Convertible models. Convertible installation requires temporarily removing and reinstalling lower support braces.
You need a 13mm socket, 11/16" socket, 6" socket extension, ratchet, torque wrench, pry bar, and safety glasses. Convertible models also require a 15mm socket.
All 7/16" hardware must be torqued to 59 lb-ft using a torque wrench.
Wear safety glasses at all times. If hesitant, contact an authorized CURT installer. Non-trailer loads must be supported by CURT 18050 stabilizing straps.
Periodically check all fasteners to ensure they are tight and all structural components are sound.
Part 56088 is a Curt Manufacturing T-connector trailer wiring harness system designed for Ford Mustang vehicles. It provides a connection point for trailer lighting by tapping into the vehicle's existing taillight wiring. The system includes a T-connector with colour-coded wires (yellow and green for each side), a black converter box, and a white ground wire.
Yes, part 56088 is designed specifically for Ford Mustang vehicles. The manual does not specify model years or generations, so contact Curt Manufacturing or your retailer to confirm fitment for your specific Mustang year and generation.
The kit includes a T-connector with yellow and green wire ends, a black converter box, a white ground wire with eyelet and screw, double-sided tape, and cable ties. You will need a screwdriver and a 3/32" drill bit (if drilling a ground hole). A separate CME-PCL-INS instruction sheet is included for battery power routing.
The manual does not explicitly state whether the battery must be disconnected. However, because the installation involves working with the vehicle's taillight wiring and routing a power wire from the battery, it is strongly recommended to disconnect the negative battery terminal before beginning work. Refer to your vehicle's owner manual or consult a professional installer if you are unsure.
Open the trunk and remove the rear scuff panel by removing two plastic fasteners and two plastic wing nuts holding it in place. This will expose the taillight wiring harness on the driver's side.
On the driver's side, locate the vehicle's taillight wiring harness. Carefully separate the connectors without damaging the locking tabs. Insert the T-connector end with the yellow wire between the separated connectors, ensuring the connectors are fully inserted with locking tabs in place. Repeat this process on the passenger side using the green wire end of the T-connector.
After connecting the yellow wire end to the driver's side taillight connector, route the green wire end to the passenger side behind the removed scuff panel and connect it to the passenger-side taillight connector using the same method. Secure any loose parts of the T-connector with the cable ties provided.
Drilling is optional. The installation requires a ground wire connection. You may locate an existing screw with nut in the vehicle's frame to use as a grounding point, or you may drill a 3/32" hole and secure the white ground wire using the eyelet and screw provided in the kit. Before drilling, verify that no miscellaneous items are hidden behind or under the surface to avoid damage and personal injury.
If you choose to drill a ground hole, drill a 3/32" hole. Secure the white ground wire using the eyelet and screw provided in the kit. Before drilling, verify that no miscellaneous items are hidden behind or under the surface to avoid damage and personal injury.
Adhere the black converter box to the frame of the car using the double-sided tape provided in the kit. Ensure it is positioned securely and in a location where it will not be damaged or interfere with vehicle operation.
Route the black power wire from the battery to the black converter box as shown on the CME-PCL-INS sheet included with the kit. Route the black wire through any rubber grommet in the trunk area if applicable. The CME-PCL-INS sheet provides detailed instructions for this connection.
Before drilling, verify that miscellaneous items are not hidden behind or under any surface where you plan to drill. This is critical to avoid damage to vehicle components and personal injury.
The T-connector has a yellow wire and a green wire. The yellow wire connects to the driver's side taillight wiring, and the green wire connects to the passenger side taillight wiring. The connector also includes a white ground wire.
Part 56088 is designed for Ford Mustang vehicles. Confirm your specific model year with Curt Manufacturing or your retailer.
You need a screwdriver and optionally a 3/32" drill bit (if drilling a ground hole). The kit includes all necessary fasteners, tape, cable ties, and wiring.
No. You must open the trunk and remove the rear scuff panel (held by two plastic fasteners and two plastic wing nuts) to access the taillight wiring harness.
Yes. A separate CME-PCL-INS instruction sheet is included with the kit and shows how to route the black power wire from the battery to the converter box.
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