TAMIYA Tractor Truck Brass Gearbox Set TRU1200S by GPM  [TRU1200S]

Brass gearbox gears for TAMIYA tractor trucks

This aftermarket gear set supplies replacement brass gears cut for installation inside the gearbox of compatible TAMIYA tractor truck models. The components are mechanical parts intended to modify drivetrain behaviour and not to change motor or electronic specifications.

Changing to the supplied brass gears can produce small, measurable shifts in gearbox response and effective gearing. Installation requires access to the internal gearbox and careful attention to gear mesh and bearing condition to preserve reliability.

For model builders seeking a straightforward mechanical tweak to gearbox behaviour on compatible TAMIYA tractor trucks, these brass gears give a direct replacement option; always confirm fit and alignment during installation.