38T Mod1 Safe-D5 Pinion Gear (ARA311133)

This rugged 38-tooth Mod1 Safe-D5 pinion gear is a steel gear built for high-stress RC applications. It helps transfer power from the motor to the drivetrain by meshing with the spur gear, delivering smooth performance and reliable control in demanding conditions.

Made for durability, it features a wide tooth profile for precise engagement and a D-shaped bore that matches the motor shaft profile to help keep the pinion secure even if the set screw loosens. Designed to fit 5mm motor shafts, the kit includes a set screw and an E-clip to retain the pinion on the shaft.