---
product_id: 248487185
title: "Auto-Ex Automotive Horn Relay Set 4-Pin 12V SPST With Interlocking Socket/Wiring Harnesses"
brand: "auto-ex"
price: "R119"
currency: ZAR
in_stock: true
url: https://www.desertcart.co.za/products/248487185-auto-ex-automotive-horn-relay-set-4-pin-12v-spst
store_origin: ZA
region: South Africa
---

# 87A max switching current Plug-in quick connect socket Durable chassis mount design Auto-Ex Automotive Horn Relay Set 4-Pin 12V SPST With Interlocking Socket/Wiring Harnesses

**Brand:** auto-ex
**Price:** R119
**Availability:** ✅ In Stock

## Summary

> 🚗⚡ Command your ride’s power with precision and style!

## Quick Answers

- **What is this?** Auto-Ex Automotive Horn Relay Set 4-Pin 12V SPST With Interlocking Socket/Wiring Harnesses by auto-ex
- **How much does it cost?** R119 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/248487185-auto-ex-automotive-horn-relay-set-4-pin-12v-spst)

## Best For

- auto-ex enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Heavy-duty chassis mount with silver tin oxide contacts for superior durability
- • **Safety Meets Smart:** Automatic overload protection and polarity change for enhanced vehicle security
- • **Versatile Control Hub:** Supports horn, alarms, door locks, trunk release, and more with automatic operation
- • **Plug & Play Efficiency:** Quick-connect socket for seamless installation and maintenance
- • **Power Through Precision:** Handles up to 87 Amps for reliable high-current control

## Overview

The Auto-Ex 4-Pin 12V SPST Automotive Horn Relay Set combines high-grade materials and advanced design to deliver up to 87 Amps switching capacity. Featuring a plug-in quick connect socket and durable chassis mount, it ensures easy installation and long-lasting performance. Ideal for controlling vehicle horns, alarms, door locks, and other electronics, this relay set offers automatic operation with built-in overload protection, making it a must-have upgrade for any modern vehicle’s electrical system.

## Description

Automotive Horn Relay Set 4-Pin 12V SPST With Interlocking Socket/Wiring Harnesses

## Features

- The durable relay and heavy duty relay socket are made by high-grade materials to ensure superior quality.
- Widely used in car keys power control, over-load protection, trunk release, polarity change, power door lock/actuator control, change a low current output to high current, add ignition/accessory outputs, control motors/other electronics.
- Suitable for automobile used for control, alarms, horn, headlight etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Connector Type | Plug-In" or "Quick Connect |
| Contact Material | Silver Tin Oxide |
| Contact Type | Normally Closed, Open |
| Mounting Type | Chassis Mount |
| Brand | Auto-Ex |
| Operation Mode | Automatic |
| Coil Voltage | 12 Volts |
| Maximum Switching Current | 87 Amps |
| Minimum Switching Voltage | 12 Volts (DC) |
| Manufacturer | Auto-Ex |
| Item part number | Auto-Ex 4 Pin Relay With Socket |
| Manufacturer Part Number | Auto-Ex 4 Pin Relay With Socket |
| Manufacturer | Auto-Ex |
| Country of Origin | India |

## Product Details

- **Connector Type:** Plug-In" or "Quick Connect
- **Contact Material:** Silver Tin Oxide
- **Contact Type:** Normally Closed, Open
- **Mounting Type:** Chassis Mount
- **Brand:** Auto-Ex

## Images

![Auto-Ex Automotive Horn Relay Set 4-Pin 12V SPST With Interlocking Socket/Wiring Harnesses - Image 1](https://m.media-amazon.com/images/I/51q64tAbHWL.jpg)

## Frequently Bought Together

- Auto-Ex Automotive Horn Relay Set 4-Pin 12V SPST With Interlocking Socket/Wiring Harnesses
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**Shop now:** [https://www.desertcart.co.za/products/248487185-auto-ex-automotive-horn-relay-set-4-pin-12v-spst](https://www.desertcart.co.za/products/248487185-auto-ex-automotive-horn-relay-set-4-pin-12v-spst)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-01-24*