This hardened 18T steel motor gear is offered as a single aftermarket pinion for the TRAXXAS 1/8 X-Maxx. It is specified for direct replacement of the motor pinion to recover correct motor-to-geartrain engagement using an 18-tooth hardened steel profile.
Install this pinion when replacing a fatigued or damaged motor gear or when recalibrating gear ratios during tuning. The hardened steel construction preserves tooth geometry under repeated torque cycles and supports consistent mesh under demanding loads.
Technical fitment notes: remove the motor assembly to access the pinion, set mesh and backlash precisely against the spur gear, and confirm the set-screw is fully seated. Perform initial run checks and periodic inspections of tooth condition and fastener security to maintain reliable operation.