Replacement Hardware Repair Kit for Office Chair Gas Lift Cylinder - Includes Clip, washers, & Bearing - S4451-K

Saved me a whole lot of pain and expense. Easy to install with clear and simple instructions. Properly solved my bearing-based issue where my hydraulic cylinder was shooting into the floor.

They are easy to install and heavy duty. Don’t buy stock ones for more than this pair cost. I have been working on cars for over 45 years and these are quality. They have a built-in large nut at the top to hold them. Very nice.

I bought a chair off of Marketplace because I liked the retro cover on it, not because it "sat well." Been trouble since I got it home. I've already done work on cleaning it and reattaching the upholstery. It's probably 15 years old. So, the other day, a pile of what looked like greasy graphite appeared below it--under closer inspection, there were assorted ballbearings in the pile. What fresh hell...? A few YouTube videos helped me identify the problem and what I needed to fix it. The gas cylinder seemed to be fine but the uppy/downy lever never did work. I have a height I want--I would not be a person who takes it up and down figuring that out. Anyway, I was so glad to see this kit available--the delivery time was longer than I'd hoped for, but as it turned out, it came two days earlier than the earliest delivery time. Easy installation--however, it appeared that uppy/downy thing was letting it sit too low. Another Amazon find remedied that and now I am queen of the world! Thank you!!!

Rubber stopper is not as wide as original in the classic aeron (2002), which had degraded in mine, thus didn't work out for me. Leaving 4 stars since I went in knowing from description that it only fits "most"

It works as intended. If you’re in a pinch though and can’t get this, just a couple of washers will pretty much do the same thing.

Yes! Fixed my old clunky chair. The old internal parts were completely aged and destroyed. It moves smooth and quiet now!

So I bought a Herman Miller chair second hand from a random man, and although I inspected the chair in the parking lot where we met up, I did not pick it up. I thought the seller was being a gentleman by helping me, a petite woman, load a heavy office chair into my car. Turns out he was holding it together and it fell apart when I unloaded it. Of course I paid cash and of course the seller didn't want to refund my money even though he knowingly sold me a broken chair (may Karma bite his a@*). This kit saved the day. It had all the parts that were broken or missing. For a reasonable cost, I was able to salvage the $$ I spent. The installation was simple enough to follow using the instruction card. Thank you, thank you!

In about 3 months after installing it the bearing just breaks into pieces. I understand that the bearing made out of plastic because it’s cheaper.. but when it lasts for a few months, then I think engineers don’t understand how mechanics works, the more load it experiences the more durable it should be. Plastic isn’t the best solution for 10s of kilograms of load