Tamiya Tractor Trucks Coupler Lock, Black Aluminum - TTT-56505-04-BK by Jazrider  [TTT-56505-04-BK]

Secure black aluminum coupler lock for Tamiya 56505

This coupler lock is an RC-scale replacement part designed for Tamiya Tractor Trucks 56505 applications. It offers a compact black aluminum option that sits at the trailer coupling interface to reduce unwanted play and improve retention during towing practice.

Installation is straightforward for model technicians familiar with Tamiya tractor-trailer assemblies: remove the existing coupler fastener, fit the coupler lock into the original mounting position, and secure it using the factory mounting hardware. No special tools are required beyond common hex drivers and basic hand tools used for Tamiya chassis maintenance.

For setup and tuning the component acts as a mechanical retention device to stabilise the trailer tongue and maintain coupling alignment, helping to reduce lateral movement and improve trailer tracking during low-speed maneuvers and loaded towing tests.