Herman Miller Aeron Cylinder Replacement For Your Office Chair

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Are you experiencing issues with your Herman Miller Aeron chair? It might be time to consider replacing the gas lift cylinder. In this blog post, we’ll explore the reasons for cylinder replacement, how to choose the perfect fit, and a step-by-step guide for easy installation.

Key Takeaways – Herman Miller Aeron Cylinder Replacement Part

  • A failing gas lift cylinder in a Herman Miller Aeron chair can cause issues like declining posture, reduced productivity, and strain on the body. It’s important to replace the cylinder promptly to avoid safety hazards and long-term discomfort.
  • Replacing the Herman Miller Aeron cylinder offers numerous benefits, including improved ergonomics and increased productivity. Choosing a high-quality replacement part like the S6112-HMA or Gas Lift Cylinder Heavy Duty ensures durability and cost savings in the long run.
  • When choosing a replacement cylinder for your Herman Miller Aeron chair, it’s important to consider compatibility with your chair as well as whether you need a heavy-duty or standard cylinder. Parts Online offers helpful resources to ensure you choose the right part for your specific needs.
  • The step-by-step guide provided in this article makes replacing the Herman Miller Aeron cylinder easy and straightforward. By following these instructions carefully, you can ensure optimal performance from your chair while also extending its lifespan.
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Table of Contents

Why Replace The Herman Miller Aeron Cylinder?

Over time, the Herman Miller Aeron chair’s gas cylinder can start to fail, leading to a range of problems like declining posture, reduced productivity, and strain on your body.

Signs Of A Failing Cylinder

A failing cylinder in a Herman Miller Aeron Chair is relatively easy to detect, as it typically causes a variety of noticeable issues. The most common sign is that the chair may consistently lose height throughout the day, forcing the user to readjust their sitting position frequently.

Aside from sinking or wobbling chairs, other symptoms of a failing cylinder can include difficulty adjusting the chair’s height and strange noises while using the adjustment mechanism.

You might also experience inadequate support while seated due to an unstable base caused by the uneven distribution of weight on a faulty cylinder.

Ignoring these warning signs could potentially lead to safety hazards and long-term discomfort in your workspace.

Benefits Of Replacement

Replacing the Herman Miller Aeron cylinder offers numerous advantages, resulting in enhanced comfort and improved chair performance. One significant benefit is that a new gas lift cylinder ensures smooth and consistent height adjustments, allowing you to customize your seating position for optimal ergonomics.

In addition to comfort enhancements, investing in a high-quality replacement cylinder can extend the lifespan of your chair. By choosing reliable components like the Gas Lift Cylinder Heavy Duty for Herman Miller Classic Aeron Chair, you not only restore proper functionality but also save money by avoiding frequent repairs or costly replacements down the line.

Choosing The Right Replacement Cylinder

When choosing a replacement cylinder for your Herman Miller Aeron chair, it’s important to consider compatibility, as well as whether you need a heavy-duty or standard cylinder.

Compatibility With Your Chair

Ensuring compatibility between your Herman Miller Aeron chair and the replacement cylinder is a crucial step in maintaining optimal performance. Start by double-checking the dimensions of your existing cylinder, such as the main support tube width and height, piston stroke adjustment range, and the overall extended length from top to bottom.

For example, if you’re considering the S6112-HMA replacement gas lift cylinder, it’s essential that its dimensions align with those of your current Aeron chair setup.

Keep in mind that this particular offering is a non-OEM standard single-stage replacement that works for chairs produced before 2012 without cable operation (important fact number 7).

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Heavy-duty Vs. Standard Cylinders

When selecting a replacement cylinder for your Herman Miller Aeron chair, it’s essential to understand the differences between heavy-duty and standard cylinders. The standard single-stage replacement non-OEM cylinder is suitable for chairs produced before 2012 that are not cable operated.

On the other hand, the heavy-duty cylinder has a higher weight capacity and thicker support column, making it ideal for chairs with heavier usage or requiring a higher weight capacity of up to 500 pounds.

While the standard cylinder is more affordable, opting for a heavy-duty option ensures durability and long-lasting use in high-intensity work environments.

Step-by-Step Guide To Replacing The Herman Miller Aeron Cylinder

To replace the Herman Miller Aeron cylinder, start by removing the old cylinder from the chair base using a rubber mallet and pliers, then insert the new cylinder into the base until it clicks into place.

Removing The Old Cylinder

Before replacing the Herman Miller Aeron Cylinder, it is important to remove the old cylinder. The first step is to turn the chair upside down and locate the retention clip that holds the cylinder in place.

Next, use a rubber mallet or hammer with a block of wood to gently tap on the bottom of the gas cylinder until it releases from its base.

Once you have removed the old cylinder, inspect it for any signs of wear and tear such as leaking or squeaking sounds when adjusting height. These are clear indications that replacement is necessary.

Installing The New Cylinder

After removing the old cylinder, it’s time to install the new one. Begin by inserting the top of the piston into the chair’s mechanism while ensuring that it fits snugly and securely.

Next, align the screw holes on both sides of the replacement cylinder with those on your chair base and insert each screw in turn until fully tightened. Finally, test your newly-installed cylinder to ensure that it adjusts smoothly as you move up or down.

It is crucial to note that when installing a replacement gas lift cylinder for your Herman Miller Aeron chair, choosing a compatible part based on size and weight capacity ensures optimal performance and durability.

If you’re looking for the best replacement cylinder for your Herman Miller Aeron chair, look no further than the S6112-HMA or a heavy-duty gas lift cylinder – both highly recommended by satisfied customers.


Offers a high-quality Replacement Gas Lift Cylinder for Herman Miller Aeron Chair, also known as S6112-HMA. This cylinder is the perfect solution for those who need to replace their old or worn-out cylinder.

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It fits most chair bases and has a 5″ piston stroke adjustment range, providing you with an enhanced sitting experience. The Replacement Gas Lift Cylinder has received four positive customer reviews, ensuring that you can purchase it confidently from the website’s wide selection of office chair parts and hardware.

Additionally, Chair parts online provide helpful instructions and videos to assist customers in choosing and replacing parts quickly and easily.

Gas Lift Cylinder Heavy Duty For Herman Miller Classic Aeron Chair

If you’re looking to replace the gas lift cylinder on your Herman Miller Classic Aeron Chair, look no further than Chair parts online’s heavy-duty replacement.

This non-OEM part is made with high-quality materials and has a 2″ wide by 9.25″ tall main support tube that will fit most chair bases. With a 5″ piston stroke adjustment range and 16.33″ total overall extended length, this replacement cylinder provides improved posture and reduced strain for those who sit for long periods of time.

Plus, with an average rating of five stars based on four product reviews, customers have been more than satisfied with their purchases online.


If you’re experiencing discomfort while sitting in your Herman Miller Aeron chair, it may be time to replace the gas lift cylinder. With affordable replacement cylinders and easy-to-follow instructions, you can improve your posture and reduce strain on your body.

Plus, with free shipping and excellent customer reviews, you can rest assured that your covered.


What is the Herman Miller Aeron chair cylinder replacement?

The Herman Miller Aeron chair cylinder replacement involves replacing the gas lift cylinder that controls the height adjustment of the chair. Over time, this part may wear out or become damaged, which can result in a wobbly or unstable seat.

How do I know if my Aeron chair needs a new cylinder?

If your Aeron chair has lost its ability to hold weight and frequently sinks when you sit on it, then it might be time for a new gas lift cylinder. Additionally, if you hear any hissing sounds coming from your seat when you adjust it up or down, this could also indicate that there’s a problem with your existing gas lift mechanism.

Can I replace my Herman Miller Aeron Chair’s cylinder myself?

Yes, it is possible to replace your own Aeron chair’s gas lift piston with some basic tools and handy online guides available but ensure that you have experience working on chairs before attempting to DIY.

It is recommended to get professional help as they are experienced in handling such intricate equipment.

Where can I buy genuine Herman Miller Aeron Chair Cylinder replacements?

Genuine Herman Miller Replacement Cylinders for an AeronChair can be found online through authorized dealers or directly from manufacturers. The company website lists approved retailers and often offers technical support should users need assistance during the installation process.