The STL14234T main gear is a hardened steel #45 aftermarket replacement intended for Tamiya TL-01 drivetrains and supplied as a single unit. The gear presents a 34T large face and a 24T small face to match common TL-01 gearbox arrangements.
Designed to transmit drive torque through the gearbox, this unit benefits from hardened material for improved wear resistance. Inspect pinion and bearing condition before installation to ensure correct load distribution and to prevent premature tooth wear.
Installation procedure: remove the gearbox cover, transfer existing shims or spacers as required, install the gear with correct orientation on the shaft, then set backlash and verify rotation under manual and powered checks. No special adapters are required for standard TL-01 maintenance and fitment.