Auper D6 Rear Upper Arm Aluminium (Purple) - SAK-D6823/PU by 3Racing  [SAK-D6823/PU]

Performance Rear Upper Arm for Auper D6

This aluminium rear upper arm is an RC-scale replacement part listed as SAK-D6823/PU and finished in purple, designed for the Auper D6 chassis. It serves as a direct rear suspension link that replaces the factory plastic arm to increase stiffness at the mounting point while leaving core chassis geometry unchanged.

For installation treat this as a like-for-like swap: remove the original rear upper arm, transfer any hinge pins or retained hardware as required, and mount the aluminium arm to the same points. The description does not indicate any chassis modifications are needed.

On track, this arm is a tuning item used to alter rear suspension behaviour. Replacing a softer plastic arm with an aluminium unit generally increases lateral and longitudinal rigidity at the mount, which can produce crisper turn-in and a steadier rear feel under load. Integrate this change into an iterative setup process with shock valving and anti-roll adjustments.

After fitting, perform routine checks: confirm hinge-pin clearance, verify retaining screws are torqued, and inspect for wear or damage after running. Keep mounting faces clean to avoid binding and re-torque hardware after the first session.

A straightforward aluminium replacement arm to increase rear link rigidity and refine suspension response on the Auper D6 chassis.