This Robinson Racing Products aluminum pinion gear features 18 teeth on a 48 pitch specification, making it a direct-fit replacement for compatible 1/18-scale and similarly geared RC platforms. The hard coat anodizing on the aluminum construction increases surface hardness for improved wear resistance compared to standard anodized aluminum. It fits a standard motor shaft and is designed for use in the drivetrain between the motor and the rest of the gear train. Features: 48 pitch, 18 tooth aluminum pinion gear Hard coat anodizing for increased surface hardness and durability Lightweight aluminum construction Factory Robinson Racing Products replacement part 7/7/26 cs