ARRMA ARA330812 Aluminum Emulsion Shock Cap

The ARRMA ARA330812 Aluminum Emulsion Shock Cap set is a genuine factory replacement part for ARRMA 6S BLX vehicles, including the Kraton 6S and Notorious 6S. The shock cap seals the top of the shock body and is what makes an emulsion shock work, so it is a critical piece of the damper assembly rather than a simple cover.

An emulsion shock runs oil and air mixed together in the same chamber instead of separating them with a bladder. That design gives more consistent damping across repeated cycles, because there is no bladder to deform or collapse as the shock heats up and works through a long run. It also makes rebuilding simpler, since there is no bladder to seat correctly during assembly.

The caps are machined from lightweight aluminum, which reduces weight high on the chassis where it matters most for handling, and anodized for durability. Precision manufactured internal threads mean the cap threads on and off cleanly during servicing without cross-threading or binding, which is a real benefit on a part you remove every time you rebuild a shock.

This is a direct replacement for the stock caps and installs with no modification. The set includes two aluminum emulsion shock caps, two rubber upper shock balls, two emulsion shock cap seals, two M3x6mm button head screws, and two copper bleed screw shims.