OER 12V Horn Relay Automatic DIN Mount Connector

Description

Product Overview

The OER 12V Horn Relay is engineered for dependable horn activation in both classic and contemporary vehicles. Featuring a screw‑type connector and a sturdy DIN rail mounting bracket, this relay integrates seamlessly into existing electrical systems. Operating at 12 volts, it mirrors original equipment (OE) specifications, ensuring the horn sounds exactly as intended. The automatic mode eliminates the need for manual switching, providing instant response when the horn button is pressed. Constructed from high‑grade metal contacts and a robust housing, the relay withstands vibration, temperature fluctuations, and corrosion typical in automotive environments.

Usage

Ideal for restoration projects and routine replacements, this relay fits 1955‑56 GM vehicles and numerous other makes that share the same wiring layout. Install it on a DIN rail within the engine compartment or fuse box, secure it with the provided screws, and connect the three terminals to the horn circuit. The automatic operation makes it perfect for daily driving, emergency situations, and performance driving where reliable horn output is critical.

Why Choose Us

OER combines decades of automotive expertise with rigorous quality control. Each relay undergoes electrical testing to verify coil voltage, contact resistance, and durability before shipping. Our parts are backed by a satisfaction guarantee, and we provide detailed fitment lists to ensure compatibility. Unlike generic alternatives, this relay matches OE part numbers 12339251 and 3145684, guaranteeing a perfect fit and function. Choosing OER means investing in a component that upholds the safety and reliability standards of your vehicle.

Key Features

• 12 V coil voltage for direct OE compatibility
• Screw‑type connector and DIN rail mount for easy installation
• Automatic operation mode for instant horn response
• Meets OE specifications and passes rigorous durability testing
• Fits a wide range of models, including 1955‑56 GM and many others

FAQ

Will this relay fit my 1955 Chevrolet?

Yes, the relay is designed to replace OE part numbers used in 1955‑56 GM vehicles, including Chevrolet models with the same wiring configuration.

Do I need any special tools to install the relay?

Only a standard screwdriver is required to secure the relay to the DIN rail and tighten the screw connector.

Is the relay compatible with modern vehicles?

While primarily intended for classic cars, the relay can be used in any vehicle that operates a 12 V horn circuit and accommodates a DIN rail mount.

What does “automatic” mean for this relay?

Automatic mode means the relay engages the horn as soon as the horn switch is pressed, without the need for a separate manual activation step.

Can I use this relay as an aftermarket upgrade?

Absolutely. It meets or exceeds OE specifications, making it a reliable upgrade for improved durability and consistent horn performance.