Tamiya 1/14 Truck Alloy Centre Gearbox with Heat Sink by GPM TRU018  [TRU018]

Alloy centre gearbox for Tamiya 1/14 trucks

This GPM TRU018 alloy centre gearbox is an aftermarket replacement designed for 1/14 scale Tamiya tractor trucks. The unit replaces the standard plastic centre gearbox with an aluminium alloy housing and integrates a heat sink surface to help dissipate heat from the centre drivetrain area during long runs. The kit is supplied as a 2pcs set with matching mounting screws for straightforward swap-over.

Intended use is strictly as an RC-scale drivetrain component, improving mechanical stiffness and durability where hobbyists demand a firmer coupling between front and rear sections. The gearbox accepts the same drive orientation and mounting points as the stock unit on compatible Tamiya models, so it is suitable where direct-fit aluminium upgrades are preferred over the original plastic part.

Installation notes: basic disassembly of the truck centre section is required, removal of the original centre gearbox, followed by bolt-in of the alloy unit using the included screws. Check gear mesh and alignment after installation, and run-in on low load to confirm smooth engagement. No additional tools beyond common RC hex drivers are required for the swap, and thread locking on screws is optional depending on your service preference.

For builders wanting a tougher centre section and improved heat transfer at the heart of a 1/14 Tamiya truck drivetrain, this GPM alloy gearbox provides a direct-fit aluminium option supplied as a 2pcs set with screws.