McHitch 3.5T Automatic Coupler

How the McHitch Works

The McHitch replaces your conventional trailer coupling with a proprietary pin-and-receiver system. The design separates the attachment point from the movement point — a heavy-duty universal joint (similar to those used in commercial vehicles) handles all articulation, while a tapered shaft and receiver handle the connection.

To hook up, you reverse the vehicle-mounted receiver onto the caravan-mounted tapered shaft. The coupling locks automatically, with your only manual step being securing the secondary locking pin. The system provides over 105 degrees of articulation with a 210-degree total angle, compared to approximately 36 degrees from conventional poly-block couplings.

The McHitch is fully ADR 62/02 tested and compliant, and features a multiple locking system that McHitch describes as making it "impossible for the coupling to detach from the tow vehicle."

Coupling Security

The McHitch uses an all-metal construction which provides durability compared to couplings that use polymer or plastic casings. The point of attachment is separate from the point of movement and wear, meaning the connection point itself doesn't degrade with articulation.

The universal joint is the same type used in commercial vehicles, delivering consistent articulation regardless of load. ADR testing confirmed the system handles 5-6 tonnes of load in tension and compression with no stress on the universal joint.

The Hookup Process

The McHitch simplifies hookup compared to conventional couplings. You reverse the receiver onto the tapered shaft and it locks automatically. The only manual step is inserting the secondary locking pin.

This is simpler than a standard coupling which requires lifting the coupling over the ball and manually checking the latch. However, some owners note you need to be aligned reasonably well in two planes for the automatic locking to engage smoothly.

Ride Quality

The universal joint design reduces the shunting and rattling common with conventional couplings. The separation of attachment and movement points means less wear on the connection, and the heavy-duty U-joint provides smoother articulation particularly on uneven terrain.

For off-road use, the 105+ degrees of articulation is a significant advantage over conventional couplings, allowing the trailer to follow the tow vehicle through steep departures and rough tracks without binding.

Maintenance

The McHitch requires minimal ongoing maintenance. The 3.5 and 4.5 tonne models use sealed-for-life graphite bushes in the coupling body, meaning no regular greasing of the main housing is needed. The universal joint should be greased annually under normal conditions using molybdenum (black moly) grease — the same maintenance interval as a standard trailer coupling.

The 2 tonne models use a different rear body design that requires annual greasing. All models should have the tapered shaft and receiver inspected periodically for wear, though the all-metal construction means wear rates are significantly lower than polymer-based couplings.

For current pricing, full specifications, and to find an approved fitter near you, visit the McHitch official website. The product range is also available through Aus-Hitch, McHitch's licensed Australian distributor based in Caboolture, Queensland.

Who Is It For?

The McHitch suits owners who want a more secure coupling with better articulation than conventional options. It's particularly relevant for off-road tourers who need maximum articulation, frequent towers who benefit from the faster automatic hookup, and heavy trailer owners using the 4.5T or 6T models.

For standard highway caravanning with a lighter rig, a conventional coupling with an anti-sway device may be adequate at lower cost.

McHitch vs Conventional Couplings

Conventional couplings like the DO35 use a ball-and-socket design — proven and widely used, but limited in articulation and subject to wear on the ball and socket surfaces. The DO35 offers approximately 36 degrees of articulation.

The McHitch offers over 105 degrees of articulation, automatic locking, and separates the wear point from the attachment point. The tradeoff is higher cost (coupler + receiver + fitting vs a single coupling unit) and commitment to the proprietary system.

Weight distribution hitches (WDH) address a separate issue — redistributing tongue weight. The McHitch is compatible with all weight distribution systems including Hayman Reese.