Tamiya Tractor Truck Aluminum Coupler Lock TTT-56505-04-S by Jazrider  [TTT-56505-04-S]

Silver aluminum coupler lock for Tamiya Tractor Truck rigs

This replacement coupler lock from Jazrider, model TTT-56505-04-S, is an RC-scale accessory made for use with Tamiya Tractor Truck models. Machined from silver aluminum, the unit replaces common plastic or stamped couplers and gives a firmer, longer lasting connection point between tractor and trailer on scale rigs.

The component is focused on one task: secure the trailer coupling, lessen play at the hitch interface, and allow consistent setup changes during chassis tuning. The description does not claim fitment to specific chassis beyond the general Tractor Truck family; confirm fit for your particular model before fitting.

Installation is intended for experienced hobbyists who check the mount points and verify the factory hole pattern. The part installs into the existing coupling area and is made to work within standard RC-scale coupling arrangements without altering drivetrain or suspension components.