Yeah Racing TRX-4 waterproof micro servo
Yeah Racing have introduced a waterproof micro servo for the Traxxas TRX-4 and TRX-6 trail trucks. Featuring full metal gears for durability and reliability the servo is capable of up to 2.6kg-cm of torque an it is a direct replacement for the standard diff locking and gear changing Traxxas servo. A long black-colour receiver wire and the included servo arms allow the use in other vehicles.
View a list of the specifications and another image here