Tow Bar Wiring in the Illawarra
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Shellharbour Tow Bar Wiring
Based in Oak Flats and proudly servicing the Illawarra, Bonetig’s Towbars & Trailers offers professional tow bar wiring installations tailored for safe, compliant towing.
Whether you're towing a caravan, trailer, or 4WD setup, we provide high-quality connections for 12-pin plugs, grey Anderson plug systems with isolators, and red Anderson plugs for ESC. We make sure your trailer’s lights, brakes, and accessories function flawlessly with your vehicle.
With over 25 years' experience, we bring expert wiring solutions to your location. Call 0418 478 155 for professional tow wiring setup today.
Stay Road-Ready with Quality Wiring
Poor or incorrect tow wiring can lead to electrical faults, trailer light failures, or disconnected brake systems—posing serious risks on the road.
We fit high-quality, weather-resistant connectors and use tested wiring configurations for everything from basic trailers to advanced caravan setups. Whether you need a full wiring system or just an upgrade to suit a new trailer, we’ll ensure every connection is safe, legal, and built to last.
From Anderson plugs to power isolators, we handle the details so you can tow with total peace of mind.
Grey Anderson Plug Set Up Including Isolator
A Grey Anderson plug setup with an isolator is essential for safe and efficient power delivery between your vehicle and caravan or trailer. These high-capacity connectors are designed for heavy-duty 12V systems, perfect for charging batteries or powering accessories while on the move.
The included isolator prevents battery drain by disconnecting the power when your engine is off. We supply and install Grey Anderson plugs with durable wiring and reliable isolators to suit your vehicle setup. Ideal for dual battery systems, they provide clean, secure connections with long-lasting performance in rugged conditions.
Red Anderson Plug for ESC
A Red Anderson plug is specifically designed to power Electronic Stability Control (ESC) systems in caravans, helping reduce trailer sway and enhance towing safety. Unlike standard plugs, the red design ensures you can’t accidentally connect the wrong power source. ESC helps apply brakes when sway is detected, so reliable power delivery is essential.
We provide quality Red Anderson plugs and install them to comply with towing regulations. Our wiring ensures that your ESC system activates correctly every time, giving you peace of mind and improved handling, especially during high-speed or emergency manoeuvres.
12 Pin Plug Set Ups
12-pin plug setups are a versatile solution for connecting your towing vehicle to your trailer or caravan, supporting a range of electrical needs like lighting, brakes, power charging, and fridge lines. We customise 12-pin setups for your specific configuration, ensuring secure connections and compliance with road safety standards.
Ideal for modern caravans or trailers with multiple electrical systems, these plugs allow for seamless functionality on long trips. Our professional installation includes quality wiring, pin allocation, and testing to make sure everything works exactly as it should—no loose ends.
Frequently Asked Questions
What is tow wiring and why do I need it?
Tow wiring refers to the electrical connections that link your vehicle to your trailer or caravan, allowing signals like brake lights, indicators, and reverse lights to function properly.
It’s essential for safety and legal compliance. Without quality tow wiring, your trailer’s lights may not respond correctly, increasing the risk of accidents and fines.
Professional installation ensures all systems work in sync, especially for larger towing setups.
What’s the difference between 7-pin and 12-pin tow wiring?
A 7-pin plug handles the basic lighting functions like indicators, brake lights, and taillights, making it ideal for small trailers.
A 12-pin plug includes those same connections but adds extra circuits for accessories like battery charging, fridge power, electric brakes, and reverse sensors.
If you’re towing a caravan or anything with electrical needs, 12-pin tow wiring is usually the better choice for functionality and flexibility.
What are Anderson plugs used for in tow wiring?
Anderson plugs are heavy-duty connectors used in tow wiring to supply constant or switched power to a caravan or trailer. Grey Anderson plugs are commonly used for battery charging, while red Anderson plugs are often linked to ESC (Electronic Stability Control) systems. They’re durable, weather-resistant, and essential for powering modern trailers and caravans during travel.
The professional setup ensures correct wiring and fuse protection.
