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Chair Cylinder Replacement


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Revive your sinking office chair by replacing the cylinder instead of buying a brand new chair. This kit comes with everything you need to repair your chair. Learn More

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Description & Details

The Complete Cylinder Replacement Kit

Sure, there are plenty of other office chair cylinder replacements you could purchase. But ours comes with everything you need to complete the full installation and feel good about your purchase:

Extra Heavy Duty Chair CylinderObviously the most important item in the replacement kit. Our desk chair cylinders are all Class 4, which are known as the most durable, longest lasting, & highest quality gas lift cylinders on the market. They have even been tested to support up to 1000 lbs without fail.

Cylinder Removal Tools - Developed specifically for removing your old chair cylinder that seems impossible to budge. The removal mechanism makes the process much easier. No more struggling and spending hours with a pipe wrench trying to pry the cylinder loose.

Gloves, Step-by-Step Instructions - We're here for you every step of the way. Each replacement kit comes with detailed installation instructions and gloves.

6 Year Hassle-Free Warranty - Our goal is to provide you with the highest quality office chair parts so you can extend the life of your chair. So if for some reason our cylinder fails, leaks, or starts sinking - email us, and we'll send you a brand new one. Our warranty lasts for up to 6 years from your purchase date.


Industry Standard Size:
This pneumatic piston cylinder will fit almost every office chair on the market.
Piston Diameter: 1-1/8" (28mm)
Column Diameter: 2" (50mm)

Weight Capacity:
1000 lbs

Cylinder Class:
Class 4 Gas Lift
(Known as the most durable, longest lasting, & highest quality gas lift cylinders)

Frequently Asked Questions

Will this cylinder fit my specific chair?
Our office chair cylinders are the industry universal standard size and will fit almost all office chairs. The cylinder measures 2” (50mm) at the bottom where it fits into the chair base, and 1-1/8” (28mm) at the top where it fits into the chair seat.

We do offer a 100% satisfaction guarantee, so if you purchase our cylinder and it does not fit your specific chair we’ll give you a full refund.

How do I remove & install an office chair gas lift cylinder?
Every cylinder we ship comes standard with cylinder removal tools and step-by-step instructions to successfully remove and install a gas lift chair cylinder.

For complete step-by-step instructions check out our how to replace an office chair cylinder guide.

What is the weight capacity for this chair cylinder?
Our chair cylinders will support up to 1000lbs. They are all Class 4 gas lifts, which are known as the most durable, longest lasting, & highest quality gas lift cylinders.


Customer Reviews

Based on 960 reviews
Bart B.
Easy Peasy!

I have had various office chairs over the years. I always went with a basic model because they did the job with a minimum of fuss. However, no matter what I bought, the chair cylinder was the first thing to go! Some lasted a long time, some did not. On a most recent purchase, the cylinder failed after 18 months. I decided enough was enough an ordered a replace kit from Oasis. I am so glad I did. The hardware is top rate and after 20 minutes (I’m not the fastest person in the world) I was sitting pretty! I highly recommend this product to any one looking for a replacement cylinder! Just wish I knew about it sooner!

Richard d.M.
Replacement saves the day!!!!!!!!!!!!

GREAT PRODUCT. My swivel chair never felt so comfortable!

David S.
Awesome upgrade for my Aeron chair of 14 years

The gas cylinder on my Herman Miller Aeron Size C chair was lacking performance the past few years, and finally gave out October 2022. Purchased this kit, followed their online youtube videos and within 30 minutes was able to remove the old bad cylinder using their removal tool included in the replacement kit. Installing the replacement took 2 minutes. I wish I did this years ago, chair it better than it ever was, performs as I remember it did when brand new. I also splurged and bought their roller blade like wheel kit and my chair is now an amazing machine, a very reasonable priced piece to restore a chair that I made a huge investment in years ago.

Barbara M.
Happy Purchase

Thank you Office Oasis! Excellent product. Arrived timely. The directions were easy to read and my chair is fixed. I didn’t want to have to buy another office chair!

Carol B.
Office chair lifter

Best product and easy install. Thanks for the you tube videos making an easy process