TRAXXAS TRX4 15T Steel Pinion Gear for TRX4 TRX4015T by GPM  [TRX4015T]

15T hardened pinion optimised for TRX4 crawl rigs

This is a GPM TRX4015T 15T pinion gear made for the TRAXXAS TRX4 Trail Crawler platform, supplied as a 2 pcs set for routine replacement or gearing swaps. The pinions are machined to 32 pitch with 0.8mm tooth spacing to mate cleanly with standard TRX4-compatible spur gears in scale crawling builds.

Material and dimensions follow the part data: hardened steel #45 construction for increased wear resistance, a 3.175mm centre bore for common motor shafts, and a 15-tooth count. The set includes one 3x3 screw shaft (1 pc) for securing the pinion to the motor where needed.

Installation and tuning notes: verify your motor shaft diameter and that your spur is 32 pitch before fitting, set proper mesh to avoid premature wear, and choose 15T when you want lower gearing with stronger wheel torque for technical crawling rather than top speed. This component is intended for RC scale use only.