---
product_id: 321683468
title: "5.5 inch Office Chair Cylinder Replacement,Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Gas Lift Hydraulic/Pneumatic Piston, Universal Size (Silver)"
brand: "omyoffice"
price: "$70.04"
currency: USD
in_stock: true
reviews_count: 13
category: "Omyoffice"
url: https://www.desertcart.us/products/321683468-5-5-inch-office-chair-cylinder-replacement-heavy-duty-gas
store_origin: US
region: United States of America
---

# 5.5 inch adjustable height silent 360° smooth rotation 1000 lbs heavy-duty load capacity 5.5 inch Office Chair Cylinder Replacement,Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Gas Lift Hydraulic/Pneumatic Piston, Universal Size (Silver)

**Brand:** omyoffice
**Price:** $70.04
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your seat, elevate your game — the silent powerhouse your office deserves!

## Quick Answers

- **What is this?** 5.5 inch Office Chair Cylinder Replacement,Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Gas Lift Hydraulic/Pneumatic Piston, Universal Size (Silver) by omyoffice
- **How much does it cost?** $70.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/321683468-5-5-inch-office-chair-cylinder-replacement-heavy-duty-gas)

## 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

- • **Universal Compatibility:** Fits almost all office and gaming chairs on the market—upgrade your setup without hassle or guesswork.
- • **Whisper-Quiet Operation:** Experience smooth, noiseless 360° rotation that keeps your workspace distraction-free and professional.
- • **Built to Endure Heavy Use:** Supports up to 1000 lbs with premium thickened alloy steel—engineered for the busiest workdays and intense gaming marathons.
- • **Certified Safety & Durability:** SGS and BIFMA certified for explosion-proof reliability, ensuring peace of mind with every sit.
- • **Effortless Height Customization:** Adjust your chair height by 5.5 inches for perfect ergonomic alignment and all-day comfort.

## Overview

This 5.5 inch Office Chair Cylinder Replacement is a heavy-duty, universal gas lift piston designed for office and gaming chairs. It offers adjustable height from 11.4 to 16.9 inches, supports up to 1000 lbs, and features silent 360° rotation. Made from thickened alloy steel, it meets SGS and BIFMA safety certifications, ensuring durability and smooth, noiseless operation for professional and home office environments.

## Description

Buy 5.5 inch Office Chair Cylinder Replacement,Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Gas Lift Hydraulic/Pneumatic Piston, Universal Size (Silver): Home Office Desk Chairs - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Easy to install and it works! - It was very easy to install, once I removed the old hydraulic pump. I highly suggest watching a tutorial for removal. Overall, I am very pleased with this purchase. I hope the pump last longer than the one that came with my gaming chair.
Review: An easy 2 minute repair - It was easy to install and works perfectly, much cheaper than spending a couple hundred dollars for a new chair.

## Features

- 5.5 IN Adjustable height Office Chair Cylinder Replacement: The height of the fully compressed gas lift cylinder is: 11.4 inches, the fully expanded height is: 16.9 inches, it has an adjustable height of 5.5 inches, which allows you to rise higher and more Use office chairs in case.
- Universal size: This air lift cylinder 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 maximum weight it supports is 1000 LBS, which is much heavier than ordinary gas cylinders
- Excellent alternative: 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
- 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
- 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 | B08XJZTBS2 |
| Age Range (Description) | Adult |
| Arm Style | Armless |
| Assembly Instructions Description | The gas lift cylinder requires assembly. Follow these steps to replace the old cylinder with the new one: 1. Add shaft collars between the old cylinder and chair seat. 2. Tighten the lower shaft collar, leaving the upper shaft collar slightly loose. 3. Add a screw, allowing it to press against the surface of the upper shaft collar. 4. Tighten the screws until the chair pops off the old cylinder. 5… |
| Back Style | Solid Back |
| Best Sellers Rank | #259,177 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #626 in Home Office Desk Chairs |
| Brand | Omyoffice |
| Color | Silver |
| Customer Reviews | 4.3 4.3 out of 5 stars (2,114) |
| Date First Available | February 25, 2021 |
| Fill Material | Foam |
| Finish Type | Polished |
| Form Factor | Recliner |
| Furniture base movement | Glide |
| Included Components | Chair Gas Lift Cylinder |
| Indoor/Outdoor Usage | Indoor |
| Is Foldable | No |
| Item Weight | 7.1 ounces |
| Item model number | 2ff7f5ea-f2dd-40d1-9ded-5c5fc70a9015 |
| Leg Style | Sled Base |
| Manufacturer | Omyoffice |
| Material Type | Alloy Steel |
| Maximum Weight Recommendation | 450 Pounds |
| Number of Items | 1 |
| Pattern | Solid |
| Product Care Instructions | Wipe Clean |
| Product Dimensions | 13"D x 13"W x 10"H |
| Reclining Position Count | 1 |
| Recommended Uses For Product | Gaming, Office |
| Room Type | Office |
| Seat Height | 16.9 Inches |
| Shape | Cylindrical |
| Size | 1000 lbs |
| Special Feature | Adjustable Height, Durable, Smooth Operation |
| Surface Recommendation | Hard Floor |
| Tilting | No |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Omyoffice
- **Color:** Silver
- **Material:** Alloy Steel
- **Product Dimensions:** 13"D x 13"W x 10"H
- **Size:** 1000 lbs

## Images

![5.5 inch Office Chair Cylinder Replacement,Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Gas Lift Hydraulic/Pneumatic Piston, Universal Size (Silver) - Image 1](https://m.media-amazon.com/images/I/51kMgovzl0L.jpg)

## Questions & Answers

**Q: Whats the exact size of the item?**
A: By Amazoncustomers on May 26, 2021

**Q: Is it quiet? Or do you make a sudden noise when you move around?**
A: By Amazoncustomers on May 26, 2021

**Q: Work with herman miller mirra chair?**
A: No, this type of gas cylinder will not work with a great deal of Herman Miller chairs.  This is because most chairs that Herman Miller has manufactured over the last 20-25 years use a cable to actuate the gas cylinder.  Mirra is one of these chairs.  It has a special mechanism on top of the gas cylinder for attaching the cable assembly.  This gas cylinder won't work for Mirra.

**Q: Is the item durable?**
A: By kiljaffdeno on May 22, 2021

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to install and it works!
*by A***S on January 7, 2026*

It was very easy to install, once I removed the old hydraulic pump. I highly suggest watching a tutorial for removal. Overall, I am very pleased with this purchase. I hope the pump last longer than the one that came with my gaming chair.

### ⭐⭐⭐⭐⭐ An easy 2 minute repair
*by J***N on December 15, 2025*

It was easy to install and works perfectly, much cheaper than spending a couple hundred dollars for a new chair.

### ⭐⭐⭐⭐⭐ Better than stock!
*by N***N on October 21, 2024*

I've had two of these chairs in the past and both had the same issue. This chair was given to me by the company to promote and it's one of their more expensive lines. Sadly it's in generic red and not purple loke my last one that was their base line. But the both has the same problem the lift went out. So the chair it's self is very comfortable and this one has the Bluetooth speakers in it so I be damned if I was gonna throw out a FREE BLUETOOTH ENABLED CHAIR. If I get another chair by then I am definitely going to be buying this along side it to use instead of the stock cylinder give. The old one was a pain to get out but easy to install the new one once it was out in. I can definitely tell a difference because this one is def more study than the original one.

## Frequently Bought Together

- 5.5 inch Office Chair Cylinder Replacement,Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Gas Lift Hydraulic/Pneumatic Piston, Universal Size (Silver)
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-26*