---
product_id: 139339366
title: "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"
brand: "dozyant"
price: "287 zł"
currency: PLN
in_stock: true
reviews_count: 10
category: "Dozyant"
url: https://www.desertcart.pl/products/139339366-dozyant-6-long-stroke-office-chair-gas-lift-cylinder-replacement
store_origin: PL
region: Poland
---

# 450 lbs heavy-duty support 6-inch adjustable stroke smooth & noiseless 360° swivel 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

**Brand:** dozyant
**Price:** 287 zł
**Availability:** ✅ In Stock

## Summary

> 💼 Elevate your workspace comfort—because your chair should work as hard as you do.

## Quick Answers

- **What is this?** 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 by dozyant
- **How much does it cost?** 287 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/139339366-dozyant-6-long-stroke-office-chair-gas-lift-cylinder-replacement)

## Best For

- dozyant enthusiasts

## Why This Product

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

## Key Features

- • **Built for Power Users:** Supports up to 450 lbs with highest-end Class 4 gas lift technology—ideal for tall and heavy professionals.
- • **Durable Alloy Steel Build:** Crafted from premium alloy steel for long-lasting strength and reliable daily performance.
- • **Effortless Height Control:** 6-inch stroke lets you customize your chair height for perfect ergonomic alignment.
- • **Whisper-Quiet Performance:** Experience smooth, noiseless adjustments and full 360° swivel without distractions.
- • **Universal Fit, Zero Hassle:** Fits most executive chairs with standard 2-inch diameter; installs easily with no extra screws required.

## Overview

The DOZYANT 6" Long Stroke Gas Lift Cylinder is a heavy-duty, Class 4 hydraulic piston designed to replace office chair gas lifts. With a 6-inch adjustable height range (11.2" to 17.2"), it supports up to 450 lbs, fits most executive chairs with a 2-inch diameter, and offers smooth, noiseless 360° swivel movement. Easy to install without extra screws, it’s built from durable alloy steel to restore your chair’s premium comfort and functionality.

## Description

desertcart.com : 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 : Office Products

Review: Excellent item works very well easy to install - I have some very expensive office chairs, and the cylinder went bad on them. I did not want to spend several hundred dollars for a new chair and was researching replacement of the cylinder online, when I came across this excellent value and easy to replace cylinder for my chairs. Now my chairs function just like as if they were new and give all the proper support. These heavy duty cylinders work excellent because I’m a pretty big guy weighing about 300 pounds and they support my weight all day.
Review: Works as Adverstised: Just Get the Tools for the Installation. - My

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Q8R34R9 |
| Age Range (Description) | Adult |
| Arm Style | Armless |
| Assembly Instructions Description | The gas lift cylinder can be installed easily with no additional screws required. 1. Tip the chair onto its side. 2. Use the rubber mallet to tap and remove the base of the chair away from the seat. 3. Use the pipe wrench to clamp tightly onto the top of the cylinder. Twist and then pull up in order to remove the cylinder. 4. Remove the orange cap of the new cylinder. Insert the bottom of the cyli… |
| Back Style | Solid Back |
| Best Sellers Rank | #37,506 in Office Products ( See Top 100 in Office Products ) #804 in Office Furniture Accessories |
| Brand | DOZYANT |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,316) |
| Date First Available | November 20, 2018 |
| Form Factor | Recliner |
| Furniture base movement | Swivel |
| Global Trade Identification Number | 00765673999173 |
| Indoor/Outdoor Usage | Indoor |
| Is Discontinued By Manufacturer | No |
| Is Foldable | No |
| Item Weight | 1.9 pounds |
| Item model number | 140-QG |
| Manufacturer | DOZYANT |
| Manufacturer Part Number | 140-QG |
| Material Type | Alloy Steel |
| Maximum Weight Recommendation | 450 Pounds |
| Pattern | Solid |
| Product Care Instructions | Wipe Clean |
| Product Dimensions | 11"D x 2"W x 2"H |
| Reclining Position Count | 1 |
| Recommended Uses For Product | Office |
| Room Type | Office |
| Size | Adjustable Height |
| Special Feature | Heavy Duty |
| Surface Recommendation | Hard Floor |
| UPC | 765673999173 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** DOZYANT
- **Color:** Black
- **Material:** Alloy Steel
- **Product Dimensions:** 11"D x 2"W x 2"H
- **Size:** Adjustable Height

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/71RmMOPGxHL.jpg)

## Questions & Answers

**Q: will this fit yamasoro chairs?**
A: Yes.  I used it on my Yamamoto because the one which came with the chair was not high enough.

**Q: Not compressing even with 200-lbs in the chair. Actuator is engaging top button. Cap removed. Any ideas?**
A: when empty, chair should go all the way up when you use the lever.  it should go down when you sit if you again use the lever.  if it is stuck at the top and u installed correctly then it must be defective.  it is a strong item and will not compress at all by just sitting w/out engaging the lever.  maybe lever is bent and not releasing air in lift which is of course how it would go down if its working properly.  my chair has been at the height i put it at since i installed the new lift—it hasn’t had to be readjusted a single time in months!

**Q: Does this 6” stroke version work better for Aeron Classic, or is the older 5" stroke model a better fit?**
A: Both fit the same, as both the bottom and top diameters are the same regardless of stroke. The only reason that I can see to change the stroke is to have a different height adjustment range, if the chair user was happy before I would use the cylinder with the same stroke length.

**Q: Will this fit a furmax office chair?**
A: If the piston size is standard, yes it will fit.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent item works very well easy to install
*by A***I on October 30, 2025*

I have some very expensive office chairs, and the cylinder went bad on them. I did not want to spend several hundred dollars for a new chair and was researching replacement of the cylinder online, when I came across this excellent value and easy to replace cylinder for my chairs. Now my chairs function just like as if they were new and give all the proper support. These heavy duty cylinders work excellent because I’m a pretty big guy weighing about 300 pounds and they support my weight all day.

### ⭐⭐⭐⭐⭐ Works as Adverstised: Just Get the Tools for the Installation.
*by B***I on September 30, 2019*

My

### ⭐⭐⭐⭐⭐ Piston Replacement
*by G***G on January 1, 2026*

Worked as expected. Replacement of the old one was easy and this fit as advertised.

## Frequently Bought Together

- 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
- DOZYANT 8" 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

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**Shop now:** [https://www.desertcart.pl/products/139339366-dozyant-6-long-stroke-office-chair-gas-lift-cylinder-replacement](https://www.desertcart.pl/products/139339366-dozyant-6-long-stroke-office-chair-gas-lift-cylinder-replacement)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-02-08*