TRAXXAS TRX4 Crawler 12T Pinion Steel Gear - TRX4012T by GPM  [TRX4012T]

12T hardened steel pinion for TRX4 use

This aftermarket 12-tooth pinion is designed for the TRAXXAS TRX4 Trail Crawler family and is supplied as a 2pc set. Manufactured from hardened #45 steel, it is aimed at hobbyists seeking a tougher pinion option for sustained low-speed torque applications.

The component fastens to the motor using the included 3x3 screw shaft and transfers rotational force to the drivetrain. Key dimensional details are a center hole diameter of 3.175mm, 12T tooth count, pitch 32, and a tooth distance of 0.8mm; confirm these figures against your spur and shaft before fitting.

Setup notes: confirm a 3.175mm motor shaft and a 0.8mm pitch spur gear, slide the pinion into place, secure with the supplied 3x3 screw shaft, and bench-check gear mesh and endplay prior to running to reduce the chance of early tooth wear. This guidance is for RC-scale compatibility and installation only.