Includes Everything Pictured:
Replacement OE 4-Way Flat Socket (T's into USCAR)
4-Way to 5-Way Flat Install Kit for Boat Trailer Surge Brakes
Connector Mounting Bracket for 5-Way Flat
Installation Hardware (if required)
Installation Instructions (if required)
Installation Schematics & Diagrams (if required)
This Trailer Wiring Harness Fits The Following Vehicles:
- 2020 - 2026 Chevrolet Silverado 2500 HD All Models
- 2020 - 2026 Chevrolet Silverado 3500 HD All Models
- 2020 - 2026 GMC Sierra 2500 HD All Models
- 2020 - 2026 GMC Sierra 3500 HD All Models
CURT 55384 Replacement Vehicle-Side Custom USCAR 4-Pin Trailer Wiring Harness (QTY 1)
Manufactured by: Curt
Stress is the last thing you should feel when towing a trailer -- whether you're hauling your RV to that favorite camping destination, your ATVs up to the hunting grounds or your fishing boat to the new hidden hotspot At CURT, we think your towing equipment should add to the enjoyment of your experience, not detract from it CURT custom wiring connectors are the easiest way to outfit your vehicle with a CURT trailer wiring connection.
They are built with some of the most advanced technology in the industry, and each one is custom-fitted to work with a specific make and model Some automotive manufacturers install a special socket on the vehicle to be used for vehicle-to-trailer wiring Though this special socket is not equipped on every vehicle, a CURT custom wiring connector (also called a T-connector) utilizes the socket for simple, stress-free installation.
Rather than requiring you to cut, splice and solder into your vehicle's wiring system, the custom wiring connector uses a single OEM-compatible plug and instantly provides a standard vehicle-to-trailer wiring connection, typically in the form a 4-way flat All CURT custom wiring connectors are made vehicle-specific for the easiest possible installation and the best fit This particular connector provides a 4-way flat socket while retaining use of the existing OEM socket.
It is designed to be a custom wiring option for a variety of vehicles (see application info to verify fitment with your vehicle) It comes with a dust cover to keep the connector socket clean when not in use..
Features:
- Replacement OE 4-Way Flat Socket (T's into USCAR)
- Plugs into USCAR connection to add 4-way flat and retain use of existing socket
- Simple plug-and-play design eliminates the need for cutting or splicing
- 4-way flat output connects tail lights, brake lights and turn signals
- Dust cover included to keep connector clean when not in use
- Slit loom keeps wires contained and well protected
- Backed by a limited one-year warranty
CURT 57187 4-Way to 5-Way Flat Adapter for Boat Trailer Surge Brakes (QTY 1)
Manufactured by: Curt
This electrical adapter is designed to adapt a 4-way flat vehicle socket to fit a 5-way flat trailer plug It is specifically intended for boat trailers with surge brakes, adding in a fifth wire for the reverse lights and allowing your vehicle's 4-way flat to easily plug into your boat trailer 5-way flat This boat trailer wiring adapter features durable molded plastic construction and requires some splicing.
All CURT wiring and electrical products come with a one-year limited warranty to give you the assurance you need to tow with confidence..
Features:
- Adapts vehicle 4-way flat to plug into boat trailer 5-way flat
- Intended for boat trailers with surge brakes
- Fifth wire splices in to connect reverse lights
- Adapts 4-way flat vehicle socket to fit 5-way flat trailer plugs
- Durable molded plastic housing resists corrosion
CURT 58303 Vehicle-Side Trailer Wiring Harness Mounting Bracket for 5-Way Flat (QTY 1)
Manufactured by: Curt
CURT electrical connector brackets provide a simple solution for mounting wiring to your trailer hitch on the rear of your vehicle Connector wires can be a nuisance when they are just lying around They can get tangled up with cargo and even damaged.
An electrical connector left to hang off the back end of your vehicle is an even greater hazard Secure, protect and optimize the use of your electrical connector by mounting it with a CURT connector bracket This trailer wire connector bracket is designed to hold a 5-way flat socket.
It features sturdy steel construction with a black finish and can be mounted on your vehicle or trailer hitch, using the included hardware..
Features:
- Securely mounts a 5-way flat connector socket
- Allows for attachment to the vehicle or trailer hitch
- Constructed from high-strength steel
- Protected by a durable black powder coat finish
List of Fitment Years:
2026, 2025, 2024, 2023, 2022, 2021, 2020
Hitches Near Me: We operate out of several warehouses across the country, ensuring faster delivery to your location.
Order today or message us for more information
