37T Mod1 Safe-D8 Pinion Gear (ARA311125)

This tough steel 37-tooth Mod1 Safe-D8 pinion gear is a dependable drive component for RC cars and trucks, built to deliver smooth power transfer in demanding conditions. The kit includes the pinion gear, a M4 x 4 mm set screw, and a 6 mm E-clip for secure shaft retention.

Durable steel construction with a precise wide tooth profile supports smooth operation, while a D-shaped hole matches the motor shaft to prevent loss of drive or braking if the set screw backs out. Designed for an 8 mm motor shaft diameter, the gear features a precisely threaded set-screw hole and retention hardware to ensure secure mounting during high-load RC runs.