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DOZYANT

DOZYANT 6" Long Stroke Office Chair Gas Lift Cylinder Replacement,Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) for Tall Person Universal Size Fits Most Executive Chairs, Highest End Class 4

    • Based on 2,024 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Dec 28
Order within 12 hours and 16 minutes
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Features

  • 6" STROKE FOR ADJUSTING CHAIR HEIGHT: Minimum length: 11.2 inches; maximum length when fully extended: 17.2 inches; adjustable range: 6 inches
  • HEAVY DUTY Gas lift cylinder that holds great weights - tall center support column of the chair. Holds up to 450 lbs on most office, executive and computer chairs. Highest End Class 4 gas cylinder on market.
  • STANDARD CYLINDER DIAMETER: Outer cylinder: 2 inches, Inner cylinder: 1. 1 inches. Please confirm the measurement before ordering.
  • SMOOTH & NOISELESS: Full 360 degree rotation, smooth and noiseless movements to all directions
  • EASY INSTALLATION : Can be installed easily with no additional screws required.

Brand: DOZYANT


Color: Black


Product Dimensions: 11"D x 2"W x 2"H


Back Style: Solid Back


Special Feature: Arm Rest


Brand: ‎DOZYANT


Color: ‎Black


Material: ‎Alloy Steel


Product Dimensions: ‎11"D x 2"W x 2"H


Item Weight: ‎1.9 Pounds


Back Style: ‎Solid Back


Frame Material: ‎Alloy Steel


Special Feature: ‎Arm Rest


Product Care Instructions: ‎Wipe Clean


Unit Count: ‎1 Count


Recommended Uses For Product: ‎Office


Maximum Weight Recommendation: ‎450 Pounds


Pattern: ‎Solid


Room Type: ‎Office


Age Range (Description): ‎Adult


Surface Recommendation: ‎Hard Floor


Furniture base movement: ‎Swivel


Indoor/Outdoor Usage: ‎Indoor


Is Electric: ‎Yes


Is Foldable: ‎No


UPC: ‎765673999173


Global Trade Identification Number: ‎73


Manufacturer: ‎DOZYANT


Item Weight: ‎1.9 pounds


Item model number: ‎140-QG


Is Discontinued By Manufacturer: ‎No


Material Type: ‎Alloy Steel


Manufacturer Part Number: ‎140-QG


Date First Available: November 20, 2018


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Dec 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Great Purchase - Saved an old office chair and adds several inches height
I was going to replace my old office chair but decided to try to install a new pneumatic cylinder first instead. The chair itself was still in good condition. The hardest part of installation is removal of the old cylinder from the old chair. It was a very tight fit to the plastic base with casters. I needed to tap with a mallet many times on bottom and I also had to remove clip from old pneumatic cylinder after removal of base from chair. Finally the old pneumatic cylinder released and I could install the new purchase cylinder. Very easy to install within a minute. Works great and adds several inches to height of chair. Thank you. Update - Because of my great experience, I purchased 2 more pneumatic cylinders for 2 other office chairs. Same bad experience with removal of the old cylinder on the other chairs. Need to be prepared for this. This time I had to purchase a 24 inch Pipe Wrench as recommended by others along with PB Blaster to soak into the area. It still took a lot of muscle power to get the old cylinder to release. A smaller pipe wrench would not have worked in my case. Very satisfying finally to remove the old cylinders and place the new cylinders with the extra height. Still a great purchase ! ... show more
Reviewed in the United States on August 5, 2023 by J Siegel
    • WORKS GREAT
I was thinking of buying a new office chair, one that would raise a bit higher than the one I had when I saw this high lift replacement cylinder. My old chair was still in good shape, only needed to go a little higher up, so I thought I would order the cylinder and save the expense of a new chair. I watched the numerous videos showing how to remove the old cylinder and install the new one and they made it look quite simple, some even showed women doing the job with ease. I can assure you mine was not coming out without a serious struggle. I had a helper, used a large pipe wrench and a 2 pound hammer to remove the old cylinder after much pounding. The chair was three years old and I'm a pretty heavy guy so maybe that made it so much harder to remove. Once you get the old one out the new one just slips in. I ordered the 6" model and was surprised at how much higher it could raise the chair. I only needed an extra inch or so higher but it can now raise the chair all the way to a 26" seat height. The chair also feels more solid with the new cylinder and I'm quite pleased with it. ... show more
Reviewed in the United States on February 24, 2024 by Dennis R
    • Works as Adverstised: Just Get the Tools for the Installation.
My B009ZNEUOA HON Lota Mid-Back Work Chair from 2012 started sinking this year. By August the cylinder would no longer hold any height. Rest of the chair had been holding up for seven years through multiple moves so I wasn’t about to replace it all. I put up with the low seating until my neck and my hands started to complain. Okay, okay—time to swap out the cylinder instead of a whole new chair. The cylinder is packed in a plain brown box with no instructions or anything. It is mislabeled for the five-inch model but the Amazon customer questions show that this is indeed the six-inch job. That’s it—pull it out of the box and you only have everything else to do. Installing the new cylinder was easy. Only tricky part about that was lining the seat up with the post so the base plate would slip right over—took about a minute. It was getting the old cylinder out that took me more than an hour, if you count the trip into town for a wrench. Right away you will need the right tools for the job: 1. Pipe wrench with at least 14-inch handle. 2. Two or more clamps. 3. A work table or similarly study clamping station. 4. B000F09CF4 Kroil, the oil that creeps! 5. A good metal hammer. The basic process is to pop the clip off the bottom of the old cylinder. This will allow the wheelbase and the bottom casing of the cylinder to separate from the rest of the chair. Some washers fell out of the bottom and the piston stuck out of the cylinder itself. Next, I had to remove the tilting base plate from the bottom of the seat. I had to do this after spending ten minutes trying to wrench the damn cylinder loose and only making gashes in the metal. For my Lota chair, I undid four hex bolts with a 3/16 hex wrench and pulled the plate clean off. Easy peasy. Then I added into the socket of the base plate some Kroil, the oil that creeps! Boy was that stuff slippery. The socket and cylinder were so tight I am not even sure the Kroil crept in there much. After that I clamped the plate down to a work table with a pair of strong C-clamps. It took a few minutes of adjustment to get them in place enough to keep the plate from twisting off the edge of the table. From there I ran into town and bought a 14-inch pipe wrench from Lowe’s. An extra 14 bucks. I recommend getting an even longer one for the leverage. Once clamped on, the wrench will slide one direction and dig in when pulled the other way. Pull with both hands, with all your might, in the biting direction. Just when you think that sucker isn’t going to come loose, be pleasantly relieved when the cylinder twists right out in one motion. At last, you’ll need to clamp your wheel base down and tap out the old cylinder bottom. In my case, the bottom was flush with the barrel of the base, so I couldn’t use a wide-face mallet, while my small rubber mallet was just too darn light. Finally, I took a good old fashioned steel hammer and with careful aim knocked it out in about six hard whacks. The finishing touch, before reassembling the whole chair with the new cylinder, was to add swap the original casters for rollerblade-style B01CTIG4GE Heavy Duty Caster Wheels from Office Oasis, an office aftermarket supplier. They came five to a pack and roll more smoothly and swiftly than the OEM wheels. For final assembly, the new cylinder dropped into the wheel base nice as you please. Don’t forget to pull the purple safety cap off the top! This exposes the plunger that the chair base plate will tap whenever you pull the lever. Day one at least, my chair works immediately well with the new cylinder. Without sitting on the seat, I depressed the lever and let the chair raise to its full height. Now I sat down and adjusted down so my feet were just touching. This put my hands and my head at a more ergo-friendly posture. Overall I think it is a good idea, when you are replacing the cylinder, to go head and consider upgrading the casters, possibly even the whole wheelbase. Maybe get some coverings for the stems of the base as well to protect them from being marred by your shows and to help you lift off. ... show more
Reviewed in the United States on September 30, 2019 by Brian M. Ranzoni
    • Fit well and works well.
This fit my chair perfectly. It also has a stronger lift than the one I replaced. Unlike that girl showed us in the video, you will probably need a sturdy tool like a pipe wrench and hammer to get the old part off. I gave it 4 stars because I am waiting to see how long it lasts.
Reviewed in the United States on July 15, 2023 by RH
    • Easy to install and a great replacement for a dead gas shock.
It was a perfect fit. It installed easily. No problems. And it took care of the problem. I would absolutely buy it again.
Reviewed in the United States on April 16, 2024 by Thomas Harris
    • Very good quality and workmanship
Used this product to replace a lift cylinder on a shop chair. The DOZYANT 6" Long Stroke Office Chair Gas Lift Cylinder is high quality and has very good workmanship. It is performing flawlessly so far (one week) and has met or exceeded all expectations. Removing the old lift cylinder from the chair took about 30 minutes and is a lot of work. There is a lot written about how to do the removal in the reviews at Amazon and on the internet. Do a search. Removing the seat cushion from its bottom plate made removing the old cylinder from the chair much easier than using a pipe wrench. Once the old cylinder is removed, the DOZYANT cylinder slipped easily into place in seconds. ... show more
Reviewed in the United States on January 23, 2024 by Call It Fairly
    • I waited too long to buy this.
I waited too long to buy this. Easy to install, works great, and makes my work life oh-so-much easier!
Reviewed in the United States on April 29, 2024 by JS

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