This Schumacher Racing Products factory replacement pinion gear is built to 48 pitch with a 19-tooth count and features a long boss design for secure motor shaft fitment. The extended collar includes a set screw for firm locking, making it well suited to competition 1:10 scale applications. Constructed from steel for durability under high-RPM drivetrain loads. Features: 48 pitch (48dp) 19-tooth count Long boss collar with set screw Steel construction 7/7/26 cs