AL-KO Profi AK 351 Trailer Coupling, 3500 kg, 60 mm, H16 + SoftDock

Product detailed description

The robust cast-iron trailer coupling AL-KO AK 351 is a ball coupling designed for braked trailers with a maximum technically permissible mass of 3500 kg. It replaces the older AK 350 model. The package includes the protective SoftDock bumper. The ball coupling is equipped with a correct coupling indicator and a coupling wear indicator.

• Maximum trailer weight: 3500 kg
• Maximum vertical load: 350 kg
• Mounting on tube: Ø 60 mm
• Mounting hole diameter: 16.5 mm

The coupling does not require adjustment throughout its service life. Its mechanism compensates for wear on the contact surfaces of both the coupling and the tow ball. If excessive wear occurs, the side wear indicator points to the minus sign (-). In this case, there is a risk of the trailer becoming detached from the towing vehicle, and the coupling must be replaced.

  If the indicator mark points to the plus sign (+), neither the coupling nor the tow ball is excessively worn, and the connection between the towing vehicle and the trailer is correct. The operating handle is secured by a push-button safety lock to prevent accidental opening. 

The ball coupling features a recess for installing an integrated lock. After removing the plastic cover, the lock can be easily fitted. The lock is not included in the package.

Important: Regular lubrication and cleaning will significantly extend the service life of the ball coupling.