2021 - 2022 Mercedes-Benz GLC300 Excluding factory receiver Curt 2", Class 3 Trailer Tow Hitch + 4-flat Wiring Kit 13477CURT$419.98In Stock
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Complete CURT Class 3 2" trailer hitch and 5-flat wiring kit (with 4-way to 5-way adapter for surge brakes) engineered for the 2021 - 2022 Mercedes-Benz GLC300 Excluding factory receiver. 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 Mercedes-Benz GLC 300 (see application info to verify vehicle compatibility). It provides a weight carrying capacity of 6,000 lbs. GTW and 900 lbs. TW. 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 Mercedes-Benz GLC Series (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 |
|---|---|---|
| 2021 - 2022 | Mercedes-Benz GLC300 | Excluding factory receiver |
Yes, the 21 - 22 Mercedes-Benz GLC300 Excluding factory receiver Curt 2" Class 3 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 13477 (Part #5W-CHW-2363) is designed to fit the 2021-2022 Mercedes-Benz GLC300.
The 21 - 22 Mercedes-Benz GLC300 Excluding factory receiver Curt 2" Class 3 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 13477 (Part #5W-CHW-2363) fits 2021-2022 Mercedes-Benz GLC300 models. The 2022 model year is the last year covered by this part number. For newer models, check for an updated version.
The 21 - 22 Mercedes-Benz GLC300 Excluding factory receiver Curt 2" Class 3 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 13477 (Part #5W-CHW-2363) fits the following vehicles: 2021-2022 Mercedes-Benz GLC300. Always verify your specific year, make, and model before ordering.
The 21 - 22 Mercedes-Benz GLC300 Excluding factory receiver Curt 2" Class 3 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 13477 (Part #5W-CHW-2363) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
Part 56560 is designed for SUVs and Vans (S-series vehicles). The manual does not list specific vehicle makes, models, or years. Contact CURT or consult a fitment database to confirm compatibility with your vehicle before purchasing.
Part 56560 is a wiring converter system that integrates trailer lighting functions with your vehicle's electrical system. It routes power and signal wires from your vehicle's taillight circuits to a 4-flat connector for trailer use. The system includes a powered converter module that manages signal circuits (5.0 amps per side) and tail/running circuits (7.0 amps total).
Yes. The manual explicitly states: 'This converter system is to be used only on 12 volt negative ground systems.' If your vehicle uses a different electrical system, this product is not compatible.
Required tools are: ratchet, test light, 6-inch extension, wire crimper, 10mm socket, wire stripper, 10mm wrench, drill, Phillips screwdriver, 3/32-inch drill bit, crimp tool, and trim panel tool. Proper tools will improve installation quality and reduce time required.
Yes. Step 1 requires you to open the hood, remove the battery cover, locate the vehicle negative battery post, and disconnect the negative battery cable. The cable must be isolated to protect it from creating an electrical system ground, which could cause damage to the vehicle's electrical system.
The installation difficulty is rated as 'Difficult'. This rating is based on time and effort involved and may vary depending on installer expertise, vehicle condition, and proper tools and equipment.
Drilling may be required. Step 7 instructs you to locate a grounding point such as an existing screw or bolt in the vehicle frame, or drill a 3/32-inch pilot hole if no existing fastener is available. The area must be free from rust, dirt, and paint. Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury.
The system uses five wire colors: Green (right turn signal), Red (brake), Yellow (left turn signal), Brown (taillight), and White (ground). The black power wire connects to the vehicle battery positive terminal. These colors are used to route signals from the vehicle's taillight circuits to the converter module and 4-flat connector.
Signal circuits are rated at 5.0 amps per side. Tail and running circuits are rated at 7.0 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 battery connection must be fuse-protected with a maximum 15-amp fuse. The powered converter lead instruction sheet shows a fuse holder with a 10-amp fuse maximum. Install the fuse after all other installation steps are complete. Exceeding the product rating can cause loss of warranty, overheating, and potential fire.
Step 6 instructs you to locate a flat surface behind the passenger-side trim panel in an out-of-the-way area and mount the lighting modules box using double-sided tape provided.
Step 8 provides two routing options: (1) Route the black power wire through the vehicle interior following the existing vehicle wire harness along trim panels, up to the firewall area, then exit through a grommet in the firewall to the battery compartment; or (2) Locate a vent or grommet in the rear cargo area, route the wire through to exit the vehicle, then route along the vehicle frame to the battery compartment. Avoid any areas or moving components that might pinch or break the wire. Step 9 references the 'Powered Converter Lead Instruction Sheet' on the last page for detailed battery connection instructions.
Step 7 instructs you to locate a grounding point such as an existing screw or bolt in the vehicle frame, or drill a 3/32-inch pilot hole if necessary. The area must be free from rust, dirt, and paint—use an abrasive pad or paper to remove rust and paint. Secure the white ground wire with the ring terminal on the existing fastener or with the provided ground screw. Before drilling, check for miscellaneous items hidden behind or under any surface to avoid damage and personal injury.
Step 3 requires you to open the rear hatch, remove the threshold plate and floor covering, then locate and remove the trim panels to access the taillight wiring connectors. Step 4 instructs you to route the connector with the green wire along the threshold, under, up, and behind the passenger-side trim panel, then insert the mating connectors with the green wire into the taillight and vehicle wiring harness. Step 5 repeats this process for the yellow wire on the driver's side. The wiring locations are S3 (driver side rear access panel) and S4 (passenger side rear access panel).
Step 10 instructs you to route the 4-flat to the center of the cargo area. When not in use, store the 4-way flat in a convenient, out-of-the-way location. Secure any loose wires with the provided cable ties.
Once the 12-volt power wire is connected to the harness, verify that the harness is functioning by attaching the battery and testing with a test light, multimeter, 4-flat tester, or a functioning trailer. The manual also recommends testing for proper function after all installation steps are complete.
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 safety.
Follow these safety precautions: (1) Do not lay tools across the positive battery terminal (typically red) as this can cause a ground short leading to sparks and electrical shocks. (2) Ensure the negative battery cable is isolated after disconnection to prevent grounding to a metal item, which could damage the vehicle's electrical system. (3) Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. (4) When routing the power wire, avoid pinch points and hot or rotating components. (5) 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.
Step 11 instructs you to reconnect the negative battery terminal, install the provided 4-flat dust cover to help prevent corrosion, and reinstall all removed items in the reverse order of disassembly to complete the installation.
The red brake wire carries the brake signal from the vehicle's taillight circuit. If using the converter as a powered module for a two-wire system, the red brake wire must be grounded according to the Powered Converter Lead Instruction Sheet.
The power wire is 12 GA (12 gauge) or larger. This wire routes from the vehicle battery to the converter module and must be protected by a fuse holder with a maximum 10-amp fuse.
Step 1 instructs you to open the hood on the passenger's side of the engine compartment and remove the battery cover and set it aside. You will reinstall it in Step 11 when you reinstall all removed items in the reverse order of disassembly.
Part 56560 is designed for SUVs and Vans (S-series). Verify compatibility with your specific vehicle model and year before purchasing.
Yes, if your vehicle has a 12-volt negative ground electrical system. This product is not compatible with other electrical system types.
You need: ratchet, test light, 6-inch extension, wire crimper, 10mm socket, wire stripper, 10mm wrench, drill, Phillips screwdriver, 3/32-inch drill bit, crimp tool, and trim panel tool.
Yes. You must disconnect the negative battery cable before beginning installation and reconnect it after all wiring is complete.
Drilling may be required. You may need to drill a 3/32-inch pilot hole for the ground wire connection if no existing fastener is available. Check for hidden items before drilling.
The battery connection must be fuse-protected with a maximum 15-amp fuse. The converter uses a 10-amp fuse maximum. Install the fuse after all other steps are complete.
After connecting the battery, test the harness with a test light, multimeter, 4-flat tester, or a functioning trailer to verify proper function.
Periodically inspect all wires and connections to ensure there is no visible damage or loose connections.
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