TRAXXAS MAXX Motor Pinion 18T Hardened Steel TXMS018TS by GPM  [TXMS018TS]

18-tooth motor pinion for TRAXXAS MAXX

This #45 hardened steel motor pinion is specified as a replacement part to interface cleanly with the motor output on TRAXXAS MAXX monster truck setups. It moves rotational torque into the drivetrain while helping to keep stable mesh between the motor pinion and mating gear under load.

The part is fitted mechanically: locate it on the motor shaft, set the gear mesh to a safe clearance, and tighten the set screw to lock the position. Steel construction gives superior wear resistance compared with more compliant materials, supporting steadier engagement during tuning and everyday runs.

Prep notes: remove debris from mating surfaces, align the tooth faces for uniform contact, and carry out a low-speed test run to check for binding before full-power operation.