---
product_id: 340832405
title: "5.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts,Universal Size Fits Most Chairs,Heavy Duty Gas Lift Hydraulic/Pneumatic Piston(Black)"
brand: "omyoffice"
price: "$85"
currency: NZD
in_stock: true
reviews_count: 11
category: "Omyoffice"
url: https://www.desertcart.nz/products/340832405-5-5-inch-office-chair-gas-lift-cylinder-office-chair
store_origin: NZ
region: New Zealand
---

# 1000 lbs max load capacity 5.5 inch adjustable height SGS & BIFMA certified safety 5.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts,Universal Size Fits Most Chairs,Heavy Duty Gas Lift Hydraulic/Pneumatic Piston(Black)

**Brand:** omyoffice
**Price:** $85
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your throne: Rise higher, work smarter, and own your office vibe!

## Quick Answers

- **What is this?** 5.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts,Universal Size Fits Most Chairs,Heavy Duty Gas Lift Hydraulic/Pneumatic Piston(Black) by omyoffice
- **How much does it cost?** $85 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/340832405-5-5-inch-office-chair-gas-lift-cylinder-office-chair)

## Best For

- omyoffice enthusiasts

## Why This Product

- Trusted omyoffice brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Endure:** Supports up to 1000 lbs, far surpassing standard cylinders—engineered for heavy-duty, executive-grade use.
- • **Elevate Your Comfort:** Adjustable 5.5-inch height range for perfect ergonomic positioning, even for long-legged pros.
- • **Certified Reliability:** SGS and BIFMA certifications guarantee top-tier safety and explosion-proof durability you can trust.
- • **Whisper-Quiet Performance:** Silent 360° rotation and smooth pneumatic lift keep your workspace distraction-free and professional.
- • **Universal Fit, Effortless Upgrade:** Fits most office chairs seamlessly—transform your existing setup without the hassle or extra cost.

## Overview

The Omyoffice 5.5 inch Office Chair Gas Lift Cylinder is a heavy-duty, universal replacement part designed to fit most office chairs. It offers an adjustable height range of 5.5 inches, supports up to 1000 lbs, and meets rigorous SGS and BIFMA safety certifications. Engineered for silent, smooth operation and durability, this gas lift cylinder is the perfect upgrade for professionals seeking ergonomic comfort and long-lasting performance.

## Description

Buy Omyoffice 5.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts,Universal Size Fits Most Chairs,Heavy Duty Gas Lift Hydraulic/Pneumatic Piston(Black): Managerial & Executive Chairs - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Awesome replacement - My not even 3 year old office chair suddenly wouldn't stay up, and that was a problem when it's lowest position made me feel like a kindergartner at the adult's table. I wasn't really wanting to drop another $100+ on a new chair when this one is fine except for the cylinder, so I took a chance and ordered this replacement. I couldn't be happier! It was a serious pain in the you know what to get the old cylinder out, but once I did everything has been perfect. This new cylinder has a higher range of motion, allowing the chair to rise almost as high as a bar stool. That will be great for my sit/stand desk since I spend half my time on my feet or pacing while working on projects. Now I won't have to constantly raise and lower the desk when I need to sit for a while. Highly recommended.
Review: Easy to install. Quality product. Taking cylinder diameter mesurement was not needed. - I found this product because my office desk task chair recently experienced a failed lift cylinder. I honestly wasn't sure if this replacement would fit or not. After reading the reviews, I decided to take a chance and order. I watched a few youtube videos before hand to see what I was up against. Basically there's very few steps involved to extract the old cylinder, then do the same for the new cylinder. In every video you see someone whacking the base plate of the chair that holds the cylinder. I used a rubber mallet instead of a standard nail hammer. Some reviews recommend using a pipe wrench. I do not own a pipe wrench and I don't understand why you'd even need one for cylinder removal and install. After several attempts with my mallet, I could not get the old cylinder to pop out. Then I just used more muscle, and then BAM!, the old one popped out. I couldn't believe how easy this was. You just have to hit harder if the old cylinder doesn't pop out on the first try. You do the same for the bottom portion where the cylinder is pressed into the chair's wheel (spider shape) mount, also easy. Then you remove the top cap of the new cylinder and kind of lightly tap the new cylinder into place. I used a block of wood over the butt end of the bottom of the cylinder to hit, so I wouldn't damage the new cylinder. It doesn't take as much force pressing/hitting the new cylinder in place. I think body weight and gravity will help seat the new cylinder over time. Super easy install. I'll also note that I decided to upgrade and get the tallest cylinder (5.5"). I think I may have doubled the height at it's highest point compared to how my chair was bought when new. The lowest point is now just below where my old chair use to rest at it's highest. So keep this in mind. You may need to consider whether or not your chair can still be stowed at your desk if your chair has armrests. A taller cylinder might prevent the chair from sliding under your desk if the armrests end up hitting the desktop. My chair still fits, but only if I lower the chair to it's lowest setting. I actually prefer the taller cylinder since I have long legs. I also like that it's almost stool height now, for when I'm playing guitar etc.

## Features

- Adjustable height 5.5 IN: The height of the fully compressed chair piston is: 11.4 IN, the fully expanded height is: 16.9 IN, it has an adjustable height of 5.5 IN,which allows you to rise higher (Note: higher than normal cylinder, measured before purchase)
- Universal size: This hydraulic piston is suitable for almost all office chairs (salon chairs, executive chairs, work chairs, rolling stools) on the market, and has a better load-bearing capacity. The office chair piston maximum weight it supports is 1000 Lbs, which is much heavier than ordinary gas cylinder for office chair
- Official certification: Durable, the best quality gas lift cylinder, withstand higher weight and pressure, high safety and explosion-proof. The gas lift cylinder has passed SGS official test and BIFMA certification, and is made of high-quality thickened outer steel to ensure compliance with quality standards
- Excellent alternative office chair gas cylinder: Stable use, no noise, silent 360° rotation and aerodynamic impact, making the operation simple and smooth. No noise to colleagues even when turning or lying on a chair to rest
- High-quality Office chair gas cylinder: This is a quiet/durable/sturdy office desk gas cylinder. Able to work well in the office

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B097HJRVDG |
| Age Range (Description) | Adult |
| Arm Style | Armless |
| Assembly Instructions Description | Require assembly |
| Back Style | Solid Back |
| Best Sellers Rank | #6,751 in Office Products ( See Top 100 in Office Products ) #11 in Office Chair Armrests, Parts & Accessories |
| Brand | Omyoffice |
| Color | Black |
| Customer Reviews | 4.4 4.4 out of 5 stars (2,736) |
| Date First Available | July 3, 2021 |
| Fill Material | Foam |
| Finish Type | Polished |
| Form Factor | Metal |
| Furniture Finish | Polished |
| Furniture base movement | Swivel |
| Included Components | 1 |
| Indoor/Outdoor Usage | Indoor |
| Is Customizable | No |
| Is Foldable | No |
| Item Weight | 1 pounds |
| Item model number | 1 |
| Leg Style | wheels |
| Manufacturer | Omyoffice |
| Maximum Weight Recommendation | 1000 Pounds |
| Model Name | 1 |
| Pattern | Solid |
| Product Care Instructions | Handle with care, avoid high heat and puncturing |
| Product Dimensions | 2.36"D x 2.36"W x 12.59"H |
| Reclining Position Count | 1 |
| Recommended Uses For Product | Office |
| Room Type | Office |
| Seat Depth | 2.36 inches |
| Seat Height | 16.9 Inches |
| Shape | Cylindrical |
| Size | 5.5 inch |
| Special Feature | Adjustable Height |
| Style | Contemporary |
| Surface Recommendation | Hard Floor |
| Tilting | Yes |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Omyoffice
- **Color:** Black
- **Material:** Alloy Steel
- **Product Dimensions:** 2.36"D x 2.36"W x 12.59"H
- **Size:** 5.5 inch

## Images

![5.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts,Universal Size Fits Most Chairs,Heavy Duty Gas Lift Hydraulic/Pneumatic Piston(Black) - Image 1](https://m.media-amazon.com/images/I/518dNVMxXpL.jpg)
![5.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts,Universal Size Fits Most Chairs,Heavy Duty Gas Lift Hydraulic/Pneumatic Piston(Black) - Image 2](https://m.media-amazon.com/images/I/41XTeEM+yAL.jpg)
![5.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts,Universal Size Fits Most Chairs,Heavy Duty Gas Lift Hydraulic/Pneumatic Piston(Black) - Image 3](https://m.media-amazon.com/images/I/61eL321ksVL.jpg)
![5.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts,Universal Size Fits Most Chairs,Heavy Duty Gas Lift Hydraulic/Pneumatic Piston(Black) - Image 4](https://m.media-amazon.com/images/I/71329qLP-gL.jpg)
![5.5 inch Office Chair Gas Lift Cylinder-Office Chair Replacement Parts,Universal Size Fits Most Chairs,Heavy Duty Gas Lift Hydraulic/Pneumatic Piston(Black) - Image 5](https://m.media-amazon.com/images/I/61pCNaCVCRL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Does it work with Davis Lucid 20-ch--seat?**
A: Seems to work on most standard office chairs

**Q: Work with herman miller mirra chair?**
A: I don't know about that chair.  But it fit in the one I have.  Check the requirements of the gas lift and see if your chair meets them.   To me as long as your chair is a standard chair and the dimensions are the same, it should fit. 

How to make sure the gas lift cylinder fits your office chair?

Check the outer and inner diameter of your broken gas lift cylinder. This replacement part fits the one with an outer diameter of 2" and inner diameter of 1.1".

**Q: Can it fit an evoko gaming chair?**
A: I have used these on a few different chairs. I haven’t had a problem yet, these gas lifts seems to be pretty universal. Worst case is you take it back if it doesn’t fit.

**Q: Will this work with a Noble Chairs Chair?**
A: It worked on the one Noble chair that I have.Most of them are universal sizes, I don’t think it’s a big problem

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome replacement
*by A***A on January 8, 2026*

My not even 3 year old office chair suddenly wouldn't stay up, and that was a problem when it's lowest position made me feel like a kindergartner at the adult's table. I wasn't really wanting to drop another $100+ on a new chair when this one is fine except for the cylinder, so I took a chance and ordered this replacement. I couldn't be happier! It was a serious pain in the you know what to get the old cylinder out, but once I did everything has been perfect. This new cylinder has a higher range of motion, allowing the chair to rise almost as high as a bar stool. That will be great for my sit/stand desk since I spend half my time on my feet or pacing while working on projects. Now I won't have to constantly raise and lower the desk when I need to sit for a while. Highly recommended.

### ⭐⭐⭐⭐⭐ Easy to install. Quality product. Taking cylinder diameter mesurement was not needed.
*by P***O on February 17, 2026*

I found this product because my office desk task chair recently experienced a failed lift cylinder. I honestly wasn't sure if this replacement would fit or not. After reading the reviews, I decided to take a chance and order. I watched a few youtube videos before hand to see what I was up against. Basically there's very few steps involved to extract the old cylinder, then do the same for the new cylinder. In every video you see someone whacking the base plate of the chair that holds the cylinder. I used a rubber mallet instead of a standard nail hammer. Some reviews recommend using a pipe wrench. I do not own a pipe wrench and I don't understand why you'd even need one for cylinder removal and install. After several attempts with my mallet, I could not get the old cylinder to pop out. Then I just used more muscle, and then BAM!, the old one popped out. I couldn't believe how easy this was. You just have to hit harder if the old cylinder doesn't pop out on the first try. You do the same for the bottom portion where the cylinder is pressed into the chair's wheel (spider shape) mount, also easy. Then you remove the top cap of the new cylinder and kind of lightly tap the new cylinder into place. I used a block of wood over the butt end of the bottom of the cylinder to hit, so I wouldn't damage the new cylinder. It doesn't take as much force pressing/hitting the new cylinder in place. I think body weight and gravity will help seat the new cylinder over time. Super easy install. I'll also note that I decided to upgrade and get the tallest cylinder (5.5"). I think I may have doubled the height at it's highest point compared to how my chair was bought when new. The lowest point is now just below where my old chair use to rest at it's highest. So keep this in mind. You may need to consider whether or not your chair can still be stowed at your desk if your chair has armrests. A taller cylinder might prevent the chair from sliding under your desk if the armrests end up hitting the desktop. My chair still fits, but only if I lower the chair to it's lowest setting. I actually prefer the taller cylinder since I have long legs. I also like that it's almost stool height now, for when I'm playing guitar etc.

### ⭐⭐⭐⭐⭐ so far so good. Fixed my chair. SEE INSTALLATION NOTE.
*by S***Y on October 29, 2025*

Well, it has been a few months and it is still working. Hopefully it will not fail like the last brand I bought after less than a year. NOTE ON INSTALLATION: Besides the fact it takes some strength to get the old out on, You MUST insure that it will not SLIDE up too far into the chair mechanism where the lever controls the height. ALL the office chairs seem to have this problem - it relies on a extremely close tolerance between the cylinder case and the chair holder. If it goes too far, it his the lever mechanism and will not work. AND that is even if your chair has an adjustment for that. Two of my chairs over the years have failed the way - the cylinder either quickly or eventually slides too far and stops work. So you have to figure out a solution to keep that from happening. I normally wrap the cylinder with a very thing layer like paper to keep it from going too far - of course it has to get close to the lever or you can't adjust either. A bit tricky - but due to the inherent design of all these chairs. Most people do not realize this and trash the chairs and get another.

## Frequently Bought Together

- 5.5 inch Office Chair Gas Lift Cylinder- Replacement Parts,Universal Size Fits Most Chairs,Heavy Duty Gas Lift Hydraulic/Pneumatic Piston (Black)
- Besitu 500Lbs Office Chair Replacement Parts, w/ 6'' x 10.2" Mounting Holes Chair Base Heavy Duty Plate Swivel Tilt Control Seat Mechanism for Executive and Gaming Chairs
- MASTERY MART 28" Heavy Duty Office Chair Base Replacement Parts, 2500 Lbs, Desk Chair Reinforced Metal Leg with Universal Gas Cylinder Hole and Casters Sockets, Matte Black

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.nz/products/340832405-5-5-inch-office-chair-gas-lift-cylinder-office-chair](https://www.desertcart.nz/products/340832405-5-5-inch-office-chair-gas-lift-cylinder-office-chair)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-03-02*