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Office Chair Cylinder Replacement

$39.95 $29.95
445 reviews
You save $10 + Free Shipping & Returns

Revive your sinking office chair by replacing the cylinder instead of buying a brand new chair.  This kit comes with everything you'll need to repair your chair:  The best chair cylinder on the market, removal tools, step-by-step instructions, and gloves.

In stock

6 Year Warranty
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  • FAQ'S
Removal Tools Included
High Weight Capcity
Step-by-Step Instructions Included
Universal Standard Size
6 Year Warranty

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 Cylinder - Obviously 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 & Our 6 Year Warranty - 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.

Universal Standard Size (Fits 95% of Office Chairs)

This pneumatic piston cylinder will fit almost every office chair on the market. It has a standard 1-1/8" (28mm) diameter piston for fit into a chair mechanism, and a standard 2" (50mm) diameter column for fit into a chair base. If it doesn't fit your specific chair, return it for a full refund and we'll even cover the cost of shipping for you.

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 a complete step-by-step guide 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.


We spend a lot of money on our ergonomic office chairs, but after some time the cylinder loses its lift.



No one should have to deal with an office chair that keeps sinking. It’s time to repair your chair!



Purchase the Cylinder Kit


Remove Your Old Cylinder
(With Our Included Removal Tool)


Revive Your Office Chair
(And Sit Comfortably at Your Desk)


Fits 95% of Office Chairs

chair cylinder standard size

Worried the Cylinder Won't Fit Your Office Chair?

The majority of office chairs are built in the same way. So unless you have a non-standard chair, chances are it will fit. Plus we're happy to offer you free returns and even pay for the return shipping if it isn't compatible.


Steps Below Show the Removal Tools in Action

Attach shaft collars to old chair cylinder piston.
Tighten lower shaft collar, leave upper shaft collar slightly loose.
Add screws, allow screws to press against the surface of upper shaft collar.
Tighten screws until old chair cylinder is completely removed from chair seat.
Simply add your new office chair cylinder replacement

Comes With Everything Needed To Fix Your Chair

By Joyce P.

The kit was a complete package with easy to follow instructions and easy to use parts. Well worth the money. The chair is operating like new. Thank you for your product!!!

Perfect Replacement for Herman Miller Aeron

By Ben N.

Just wanted to say how impressed I am with this product – I have now been able to remove the old cylinders from 4 Aeron Chairs that had been firmly stuck in place after 15 years of constant use and have defeated several previous attempts to be replaced – your replacement tool made a difficult job very easy.

Easy Removal, Even Easier Installation

Shannon T.

The removal tool was a huge selling point for me. I was stuck (literally) on removing the old cylinder from the base of the seat.

The removal tool worked like a charm and I’m back in my comfy chair again. As a tip – use two wrenches at the same time on the nuts that push the rings apart – makes things go smoother.


445 reviews

I had to have some help getting the old cylinder out but one that was accomplished it went very smoothly.

Posted by Heather H.

Bought this cylinder to fix my office chairs inability to stay in the position selected.....It now does thanks to the opportunity to purchase from this seller. It took a little bit of work, but was easier than I made it!!

Posted by Andrea J.

My 20-year old Aeron's air cylinder recently failed. Not knowing this product comes with a removal tool, I took out the old cylinder the hard way. This involved a sizable hammer, and quite a bit of work. For my chair, detaching the cylinder from the bottom wheel assembly was relatively easy. A few hits got it loose. The top part, on the other hand, was much more difficult. I ended up removing the seat pan, and cover of the spring assembly. I had to hit top part of the cylinder via a suitable hex socket really hard. And I mean REALLY hard. It eventually came out.Putting it back together was a breeze. Everything fit nicely. I did have to adjust the cable actuator inside the spring assembly, so the plate would activate the cylinder switch. Looking back, I should have waited for the part to arrive, because it comes with a removal tool. I did not actually use it, but it does look like a well-designed and well-made product by itself. I have saved it, in case I need it in the future.I don't know whether it will fit other office chairs, but it fit the Aeron perfectly. Only time will tell whether it will last the same 20 years.

Posted by Janet T.

So much less expensive than the OEM cylinder and worked perfectly and saved $1,000 chair from the junk file

Posted by Sara A.

Don't follow what it says in the manual. Their process to slowly wedge the cyllinder out to remove it doesn't work. The best method would be to attach one of the collars to your current cyllinder and hit it with a hammer until it comes loose

Posted by William S.

I was so excited to be able to fix my chair myself and for such a reasonable price (especially after calling Herman Miller vendor) that I forgot to put the plastic sleeve? back before bouncing on newly repaired chair. NBD.Great product!

Posted by Tim N.

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