Team Associated RC18T/RC18R Front Aluminum Caster Block RC18-008/SI by 3Racing  [RC18-008/SI]

Lightweight aluminum caster block for RC18T and RC18R

This aluminum caster block replaces the OEM plastic piece on Team Associated RC18T and RC18R chassis and is supplied as RC18-008/SI. It stiffens the front steering mount to reduce flex without changing the core geometry of the suspension.

Fitting the part is straightforward for anyone comfortable with basic RC servicing: remove the factory caster block, move over bearings or spacers as needed, mount the aluminum block to the upright and fasten with the original hardware. Standard hex drivers are all that is required, and careful torqueing helps prevent binding at the steering joints.

On track the part acts as a tuning aid rather than a major setup change. The increased mounting stiffness can reduce steering deflection under load, which helps maintain consistent response when you adjust caster, camber or toe. Best results come from pairing the block with clean bearings and correctly set steering links.

Setup and inspection tips

• Recheck caster and toe after installation to confirm your setup targets are unchanged.
• Transfer any seals, spacers or shims from the original block to preserve bearing preload.
• Cycle full suspension travel and check for any binding, especially if you are also using aftermarket uprights or hub offsets.