Trailer Tow Balls

ADR Compliant Towing Solutions for Every Load

When it's time to hit the road, the humble tow ball is the single point of contact between your vehicle and your livelihood—be it a caravan, boat, or work trailer. We provide a heavy-duty range of trailer tow balls engineered to meet strict Australian standards. From standard 50mm options to high-capacity 70mm balls, our collection ensures your connection is secure, legal, and built to last.

Choosing the correct tow hitch ball isn't just about fitment; it’s about safety and weight ratings. We stock premium hardware from industry leaders like Hayman Reese and Mister Hitches, giving you the peace of mind that your trailer tow hitch setup can handle the demands of the Australian terrain.

 

17 Products Found

Selecting the Right Towing Balls for Your Setup

Not all towing balls are universal. To ensure you remain compliant with Australian towing regulations, it is essential to match your hardware to your trailer's Gross Trailer Mass (GTM).

  • 50mm Tow Balls (Up to 3,500kg): The most common standard in Australia. These are ideal for most caravans, horse floats, and tandem trailers. Look for the "3.5T" stamp to ensure you have the capacity you need.
     
  • 70mm Tow Balls (Up to 4,500kg): Required for heavy-duty towing applications where the trailer weight exceeds 3.5 tonnes. These require a specific 70mm coupling to match.
     
  • Hi-Rise & Specialty Options: We offer "Hi-Rise" trailer towing balls designed to provide extra clearance for specific couplings (like AL-KO friction hitches) or to level out a trailer that sits higher than the tow vehicle.

Quality Towing Gear Delivered Australia-Wide

Whether you need a replacement chrome ball, a stainless steel upgrade, or a protective cover, Total Trailer Parts makes it simple to buy your tow ball online. We provide technical specifications for every shank size and rating, ensuring you get the right part for your hitch the first time.

Towing & Hitches: Frequently Asked Questions

What is the standard tow ball size in Australia?

The most common Australian standard is the 50mm tow ball. Legally, these must be stamped with the manufacturer’s name and a "50" to denote the size. Most 50mm balls are rated to 3,500kg, but always check the shank diameter (typically 7/8" or 1") to ensure it matches your ball mount.

Can I use a 50mm ball for a 4.5-tonne trailer?

No. In Australia, any trailer with a GTM over 3,500kg generally requires a 70mm tow ball or a specialty pintle hook. Using an undersized tow hitch ball for a heavy load is a major safety risk and is illegal for road use.

How do I know if my tow ball needs replacing?

You should inspect your trailer tow hitch regularly for signs of wear. If the sphere of the ball has flat spots, deep scoring, or has reduced in diameter by more than 1mm through friction, it must be replaced. A worn ball can lead to "slop" in the coupling, increasing the risk of the trailer detaching.

What is a "Hi-Rise" tow ball?

A hi-rise ball features a built-in "shoulder" that raises the ball higher off the hitch platform. These are often used to ensure the trailer stays level during transit or to provide the necessary clearance for modern stabiliser couplings that require a wider range of movement.