TRAXXAS TRX4 Trail Crawler 12T Steel Pinion Gear 2pc set by GPM TRX4012T  [TRX4012T]

12T steel pinion for TRX4

This RC-scale pinion gear is a direct-fit aftermarket part produced for the TRAXXAS TRX4 Trail Crawler platform, supplied as a 2pc set. Machined from hardened #45 steel, the gear is intended for use where a steel pinion is preferred for longevity and consistent meshing in low-speed, high-torque crawling setups.

Functionally the part connects to the motor using the supplied 3x3 screw shaft and transfers torque from the motor to the drivetrain. Key dimensional notes taken from the source data include a middle hole diameter of 3.175mm, tooth count 12T, pitch specification 32, and tooth distance 0.8mm, information intended to confirm shaft and spur compatibility before installation.

Installation notes: confirm your motor shaft measures 3.175mm and that your spur gear matches 0.8mm pitch, slide the pinion onto the shaft, secure with the included 3x3 screw shaft, and verify gear mesh and endplay on the bench before first run to avoid premature wear. This description applies to RC-scale models only and is focused on compatibility, installation, and tuning considerations.