Secure Your Trailer with ALKO Genuine Universal Coupling Lock – 616950

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Alko plunger coupling lock. The new Alko universal coupling lock is an easy to use safe and secure coupling lock that suits nearly all braked and un-braked couplings on the market.

Made from cast aluminium the Alko universal coupling lock requires no additional padlock as the locking mechanism is built into the device for added safety. Ensure your towed vehicle can not be removed when it is off your car or truck with the new Alko universal safety lock.


  • Secure your caravan, boat trailer, box trailer or horse float against theft using Alko’s coupling lock
  • The Alko coupling lock fits directly to standard 50mm ball couplings preventing a ball from being inserted in to the coupling until it has been removed
  • The Alko coupling lock is powder coated and zinc plated components for corrosion resistance
  • The incorporated locking mechanism is provided with 2 x keys

Additional information

Weight 1 kg
Dimensions 21 × 20 × 9 cm


Tow Ball Size