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Yes. Our standard 4 hole couplings are designed to replace all common 4 bolt couplings without modification.

The standard 4 bolt hole measurement is 184mm x 54mm (Hole Centres)

If your trailer uses a different 4-bolt or 6-bolt pattern, please check the guide below to confirm compatibility.

🔗 See: OzHitch Bolt Hole Dimensions (With Diagrams)

Yes. All OzHitch couplings are ADR compliant and CTA approved for use in Australia.

ADR Compliant:
OzHitch couplings comply with Australian Design Rule ADR 62/02 – Mechanical Connections Between Vehicles.

CTA Approval:
OzHitch couplings also carry a Component Type Approval (CTA) number, confirming they meet Australian vehicle component safety requirements.

🔗 See: OzHitch Testing

The OzHitch coupling you choose must be rated equal to or greater than your trailer’s ATM (Aggregate Trailer Mass).

Always check the ATM rating on your trailer’s compliance plate and ensure the coupling rating meets or exceeds this weight.

🔗 See: Understanding Towing Capacity and ATM

The OzHitch model you choose depends on your trailer’s braking system and its ATM (Aggregate Trailer Mass).

2000kg OzHitch – Designed for trailers fitted with override brakes only, which may be cable or hydraulic.

2500kg and 3500kg OzHitch – Suitable for un-braked trailers or trailers with electric brake systems.

In Australia, trailers over 2000kg ATM must be fitted with electric brakes and a breakaway system, which is why larger OzHitch models are designed to suit these setups.

🔗 See: Understanding Towing Capacity and ATM

When OzHitch was first designed, the market commonly used both 4-hole and 6-hole coupling patterns, so both options were produced to suit different trailers.

Today the industry has become more standardised, and most trailers use the 4-bolt pattern, which is why we generally recommend the 4-hole OzHitch model for most applications.

We still supply 6-hole models for customers who require additional mounting points, such as those towing in extreme off-road conditions or with specialised trailer setups.

🔗 See: 4 Hole vs 6 Hole: Which Should I Choose?

Yes. OzHitch couplings are designed to replace many standard 50mm ball couplings, particularly on trailers used for off-road or heavy-duty towing.

The existing tow ball is removed and replaced with an OzHitch receiver bracket, which allows the OzHitch coupling to connect using the heavy-duty pin system.

Before upgrading, make sure the OzHitch you choose matches your trailer’s ATM rating and brake type.

Yes. We ship Australia-wide from Manutec in South Australia.

All OzHitch products are stocked locally in Australia, and orders are typically dispatched the same business day (weekdays) from our warehouse in Cavan, South Australia.

Orders are securely packaged to ensure they arrive safely and ready for installation.

Installation is straightforward for anyone comfortable using basic tools.
You will need:
Correct bolt kit (grade 8.8 bolts)
Torque wrench
Basic hand tools
If unsure, we recommend professional installation.

OzHitch is built for:

Low profile clearance
Self-aligning coupling
Full off-road articulation
Heavy-duty construction
Made for Australian conditions

It’s designed for serious towing — not just highway use.

Contact us immediately.
Our team will help arrange the correct model and advise on returns if required.

OzHitch couplings use a range of high-tensile mounting bolts designed for heavy trailer loads.
🔗 See: OzHitch Bolt Guide

Regular maintenance includes greasing the uni-joint and checking bush wear to keep the coupling operating smoothly.

🔗 See: OzHitch Maintenance Tips

OzHitch offer a range of security products to help prevent trailer theft including:

– Tow Tongue Receiver Lock
– OzHitch Connecting Pin Lock

🔗 See: Security for your Camper Trailer