---
product_id: 4596129
title: "CURT 55580 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota Sienna"
brand: "curt"
price: "€ 65.75"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/4596129-curt-55580-vehicle-side-custom-4-pin-trailer-wiring-harness
store_origin: IE
region: Ireland
---

# Surface mount tech for reliable power Plug-and-play 4-pin connector Weatherproof dust cover CURT 55580 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota Sienna

**Brand:** curt
**Price:** € 65.75
**Availability:** ✅ In Stock

## Summary

> 🚗🔗 Tow Smart, Tow Stylish: The Sienna’s Perfect Wiring Match!

## Quick Answers

- **What is this?** CURT 55580 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota Sienna by curt
- **How much does it cost?** € 65.75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/4596129-curt-55580-vehicle-side-custom-4-pin-trailer-wiring-harness)

## Best For

- curt enthusiasts

## Why This Product

- Trusted curt brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Plug & Play:** No cutting or splicing—installs in minutes for instant towing readiness.
- • **Reliable Power Delivery:** Advanced surface mount technology guarantees optimal light intensity and durability.
- • **Universal 4-Way Connector:** Supports tail, brake, and turn signals for versatile trailer compatibility.
- • **Tailored for Toyota Sienna:** Custom-fit design ensures perfect compatibility and seamless integration.
- • **Weather-Resistant Protection:** Includes a rubber dust cover to shield your connection from the elements.

## Overview

The CURT 55580 Vehicle-Side Custom 4-Pin Trailer Wiring Harness is a vehicle-specific, plug-and-play solution designed for select Toyota Sienna models. It provides a standard 4-flat trailer connector for tail, brake, and turn signals without any cutting or splicing. Built with surface mount technology for reliable power and durability, it includes a weatherproof dust cover to protect the connection, making towing easier, safer, and more efficient.

## Description

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.

## Features

- EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer
- STANDARD CONNECTOR. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. 4-way trailer light wiring is popular on a variety of trailers, adding versatile towing options for your vehicle
- VEHICLE-SPECIFIC. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Toyota Sienna
- RELIABLE POWER. This 4-way trailer wiring harness is built with surface mount technology. This type of circuitry generates less heat, optimal light intensity and durable performance
- DUST COVER. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Curt Manufacturing |
| Brand | CURT |
| Model | Custom Wiring |
| Item Weight | 14.7 ounces |
| Product Dimensions | 9 x 4 x 3 inches |
| Item model number | 55580 |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | 55580 |
| OEM Part Number | 55580 |

## Images

![CURT 55580 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota Sienna - Image 1](https://m.media-amazon.com/images/I/714bU534gVL.jpg)
![CURT 55580 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota Sienna - Image 2](https://m.media-amazon.com/images/I/71ChtlvBFaL.jpg)
![CURT 55580 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota Sienna - Image 3](https://m.media-amazon.com/images/I/916XkJA+qPL.jpg)
![CURT 55580 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota Sienna - Image 4](https://m.media-amazon.com/images/I/817svR0-j1L.jpg)
![CURT 55580 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Toyota Sienna - Image 5](https://m.media-amazon.com/images/I/61RGb+D5P0L.jpg)

## Frequently Bought Together

- Curt Manufacturing 55580 Vehicle-Side Custom 4-Pin Trailer Wiring Harness,Fits Select Toyota Sienna
- CURT 13105 Class 3 Trailer Hitch, 2-Inch Receiver, Exposed Main Body, Fits Select Toyota Sienna, GLOSS BLACK POWDER COAT

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**Shop now:** [https://www.desertcart.ie/products/4596129-curt-55580-vehicle-side-custom-4-pin-trailer-wiring-harness](https://www.desertcart.ie/products/4596129-curt-55580-vehicle-side-custom-4-pin-trailer-wiring-harness)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-04*