How to Change the Gas Lift on a Herman Miller Aeron Chair

TL;DR: Guide to replacing the gas lift on a Herman Miller Aeron chair.

What this page covers

Overview of the gas lift replacement process for an Aeron chair.
Tools and parts needed for the repair.
Step-by-step instructions for removing and installing the new gas lift.

Who Is This For

Owners of Herman Miller Aeron chairs who need to replace the gas lift.
DIY enthusiasts looking for a clear, step-by-step guide.