TRAXXAS TRX4 Precision 14T Pinion TRX4014T by GPM  [TRX4014T]

Precision 14T Pinion for TRAXXAS TRX4

This 14-tooth steel pinion is a replacement/upgrade option for TRAXXAS TRX4 trail crawlers, intended to mount on the motor shaft and drive the vehicle through the spur gear and downstream drivetrain. The twin-pack provides a spare for service or tuning purposes.

Documented specifications include hardened steel #45 construction, 14 teeth, centre bore 3.175mm, 0.8mm tooth spacing and pitch 32. The item ships with a 3x3 screw shaft to secure the pinion. Match these dimensions with your current spur gear and motor shaft before fitting to ensure correct mesh and operation.

Practical tips: confirm the motor shaft diameter is 3.175mm, set and check gear mesh to avoid noise or binding, and secure the pinion with correct torque to prevent movement. Altering the tooth count changes gearing behaviour and should be chosen based on terrain and motor/ESC configuration.