Couplings & Tow Balls
PREMIUM TRAILER COUPLINGS & TOW BALLS - FAST NZ WIDE DELIVERY
Welcome to our dedicated section on Couplings & Tow Balls, pivotal components in the world of trailer spares. Whether you're looking to secure your trailer for a weekend getaway or need a robust solution, the right coupling and tow ball can make all the difference. Delve into our extensive range of high-quality products, including the popular 50mm high-rise tow ball used on European caravans, each crafted to meet the stringent standards of the New Zealand market, and discover the perfect fit for your trailer's requirements.
We stock a wide range of products from leading brands, including Trojan tow hitches and braked trailer coupling products, plus CM Trailer Parts couplings, safety chains and locks. Our tow ball parts and accessories include tow ball extensions and tow ball mounts. Whatever your towing needs, we have the right product or accessory for you.
- Do I Need Brakes on My Trailer? NZ Rules Explained Weight thresholds, safety chains, and why 2,500kg is the line for coupling ratings.
Couplings & Tow Balls — Frequently Asked Questions
What size tow ball do I need?
It depends on your trailer coupling, not your vehicle. New Zealand has moved from the older 1-7/8 inch standard to 50mm, so check the size stamped on the coupling itself. If you tow more than one trailer with different couplings, an interchangeable multi-ball kit lets you swap between sizes in seconds.
What shank size do I need?
The shank is the threaded stem that passes through your tow bar tongue. Common sizes are 3/4 inch (19mm), 7/8 inch (22mm) and 1 inch (25mm). Measure the hole in your tow bar, or check your existing tow ball.
What is a high rise tow ball for?
High rise tow balls are the recommended fitment for European stabiliser couplings, common on imported caravans. Standard tow balls and interchangeable multi-ball kits are not a suitable substitute on those couplings.
What is the difference between a braked and unbraked coupling?
An unbraked coupling simply connects the trailer to the tow ball. A braked coupling also actuates the trailer's brakes, with an override (mechanical or hydraulic) coupling doing this by sensing the trailer pushing forward as you slow down. Your coupling must be rated at or above your trailer's gross laden weight.
How do I check my coupling is still safe?
Look for excessive play between the coupling and a correctly sized tow ball, cracks or elongation around the mounting bolts, a latch that does not close positively, and worn or missing safety chain attachment points. Couplings are a wear item and are cheap relative to the consequences of failure.
