TRAXXAS TRX4 32-Pitch 13T Steel Pinion for Crawling TRX4013T by GPM  [TRX4013T]

Hardened 13T Pinion for TRX4

This aftermarket 2pcs pinion gear set is supplied for TRAXXAS TRX4 Trail Crawler scale models as an accessory component. The gears are machined from hardened steel #45 to stand up to contact wear, and the set comes with one 3x3 screw shaft for securing the chosen pinion to the motor.

Intended to replace or upgrade the factory pinion, the 13-tooth 32-pitch option offers a straightforward method to tweak final drive for stronger low-speed torque without swapping spur gears. Manufacturer measurements to check are a bore diameter of 3.175mm, tooth pitch spacing of 0.8mm, and 13 teeth compatible with 32-pitch spur gears used in TRX4 configurations. This steel choice suits situations where durability under slow-speed load is more important than weight savings.

Installation guidance: press the pinion onto the motor shaft, align gear mesh with the spur gear, then secure using the supplied 3x3 screw shaft. Verify mesh, backlash and that both gears are 32-pitch to prevent early failure.