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

Aluminium Rear Upper Arm: Auper D6 Fitment

The aluminium rear upper arm is supplied as model SAK-D6823/PU in purple and is intended for use on the Auper D6 chassis as a direct replacement for the stock plastic arm. The part is designed to alter link stiffness while preserving the original mounting geometry.

Installers should swap the original arm for this aluminium unit, transferring any existing hinge pins or hardware that fit. No extra chassis cutting or drilling is described in the product notes.

In practice the aluminium arm is a tuning item: moving from plastic to aluminium increases rigidity at the connection, which can tighten initial turn-in and stabilise the rear during acceleration or cornering loads. Adjust shocks and anti-roll settings in concert with this change for best results.

Post-fit checks are advised: verify hinge-pin clearance, confirm retaining screws are tightened to spec, and inspect for any damage after the first sessions. Keep the mounting surfaces clean to prevent binding.

A reliable aluminium replacement arm that increases rear link rigidity and helps refine suspension behaviour on the Auper D6 chassis.