Car carrier trailer wiring Harness

Price 1300.0 INR/ Piece

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MOQ : 10000 Pieces

Car carrier trailer wiring Harness Specification

Product Type
Car carrier trailer wiring Harness

Material
PVC

Usage
Industrial

Size
Different Available

Color
Black

Car carrier trailer wiring Harness Trade Information

Minimum Order Quantity
10000 Pieces

Supply Ability
5000 Pieces Per Month

Delivery Time
7 Days

About Car carrier trailer wiring Harness

A car carrier trailer wiring harness is an assembly of color-coded wires, plugs, and connectors that link a tow vehicle's electrical system to the trailer's lights, brakes, and auxiliary functions, ensuring safe and legal towing.

Key Components & Functionality

The specific components and functions vary depending on the connector type (commonly 4-pin flat, 5-pin flat, or 7-pin blade), with car carrier trailers often using 7-pin systems to accommodate electric brakes and auxiliary power.

Wires: The harness consists of multiple insulated copper wires, each color-coded according to industry standards (like SAE J2863) to signify specific functions. Common functions and colors include:
- White: Ground connection, essential for completing all electrical circuits.
- Brown: Powers tail lights, running lights, and side marker lights.
- Yellow: Controls the left turn signal and left brake light.
- Green: Controls the right turn signal and right brake light.
- Blue: Activates the electric trailer brakes, connected to a brake controller in the tow vehicle.
- Black (or Red): Provides 12V auxiliary power for onboard accessories, such as interior lights or charging trailer batteries.
- Purple (or Red/Yellow): Powers reverse lights, and can also be used to disengage surge brakes when backing up.
Connectors/Plugs: These are the physical interface, typically weatherproof and designed for a secure, plug-and-play connection to the vehicle's socket.
Circuit Protection: Many harnesses include a circuit-protected ModuLite module or converter to safeguard the tow vehicle's electrical system from short circuits or overloads by drawing power directly from the battery.
Housing: The entire assembly is encased in durable, weather-resistant materials like PVC insulation and protective convoluted tubing (slit loom) to withstand harsh road conditions, moisture, dust, and debris.

Design Features

Vehicle Specific Fit: Many high-quality harnesses, such as the

Tekonsha Tow Harness Wiring Package

or the

CURT Custom Vehicle-Trailer Wiring Harness

, are custom-made for specific vehicle makes and models, allowing for easy installation without cutting or splicing the vehicle's existing wiring.
Durability: They are built with robust, high-quality materials to ensure a long-lasting and reliable electrical connection.
Safety: The primary function is to synchronize the trailer's lighting and braking with the tow vehicle's, which is critical for road safety and legal compliance. Some systems also integrate with a trailer breakaway system, which applies the trailer's brakes automatically if it becomes disconnected.