Trailer & Towing

Not on its own. A stabiliser is a towing aid – it damps the side-to-side movement that causes snaking at speed. Some models take a lock, which is where the two overlap, but fitting a stabiliser is not a substitute for a hitch lock.

Not reliably. Trailer wheels are often smaller and narrower than car wheels, so a clamp sized for a car may not close properly, or may foul the mudguard. Check the tyre sidewall figures against the clamp’s stated range before ordering – our sizing guide covers it.

By the coupling, not the trailer. Couplings vary far more than people expect – AL-KO alone has several models, and other makers differ again. Find the make and model stamped on the coupling head, tell us what it says, and we will tell you which locks suit it.

It blocks the fifth-wheel coupling on an HGV semi-trailer so the trailer cannot be picked up by another tractor unit. It does the same job at commercial scale that a hitch lock does on a small trailer, and it is the usual first fitting for anything left standing in a yard. See our commercial vehicle locks.

At minimum a hitch or king pin lock and a wheel clamp, so it can be neither towed nor rolled. On a site with no gate or lighting, a ground anchor and chain through the chassis adds a third fixing that has to be cut rather than picked.

If there is anything in it, yes. A trailer can be perfectly secure against being towed and still be emptied where it stands. Container and trailer door locks cover the doors themselves, and are the usual pairing with a hitch lock on a box or plant trailer.