---
product_id: 529719367
title: "Universal Size Chair Cylinder Replacement Parts 4.0 inch Stroke Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Hydraulic Piston Cylinder Heavy Duty 1000 LBs"
brand: "subhtoh"
price: "A$65"
currency: AUD
in_stock: true
reviews_count: 12
category: "Subhtoh"
url: https://www.desertcart.com.au/products/529719367-universal-size-chair-cylinder-replacement-parts-4-0-inch-stroke
store_origin: AU
region: Australia
---

# 1000 lbs heavy-duty lift 360° smooth rotation 4.0 inch stroke precision Universal Size Chair Cylinder Replacement Parts 4.0 inch Stroke Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Hydraulic Piston Cylinder Heavy Duty 1000 LBs

**Brand:** subhtoh
**Price:** A$65
**Availability:** ✅ In Stock

## Summary

> 💺 Elevate your workspace with power, precision, and style!

## Quick Answers

- **What is this?** Universal Size Chair Cylinder Replacement Parts 4.0 inch Stroke Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Hydraulic Piston Cylinder Heavy Duty 1000 LBs by subhtoh
- **How much does it cost?** A$65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/529719367-universal-size-chair-cylinder-replacement-parts-4-0-inch-stroke)

## Best For

- subhtoh enthusiasts

## Why This Product

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

## Key Features

- • **Universal Fit:** Fits 51mm outer & 28mm inner diameters—compatible with most office & gaming chairs.
- • **Built to Endure:** Class 3 piston certified for 100,000 lift cycles—reliability that outlasts your workday.
- • **Smooth & Silent:** 360-degree rotation with whisper-quiet hydraulic lift for seamless comfort.
- • **Effortless Upgrade:** Install in minutes—no pro tools needed, just plug & play convenience.
- • **Sustainable Savings:** Replace, don’t replace—save hundreds by reviving your favorite chair.

## Overview

The Subhtoh Universal Size Chair Cylinder is a heavy-duty, Class 3 gas lift piston designed for office and gaming chairs. Featuring a 4.0-inch stroke and a 1000 lbs load capacity, it offers smooth 360-degree rotation and quiet hydraulic operation. Certified by BIFMA and TUV, it fits most standard chairs with 51mm outer and 28mm inner diameters, providing a cost-effective, durable replacement that extends your chair’s life and comfort.

## Description

desertcart.com: Subhtoh Universal Size Chair Cylinder Replacement Parts 4.0 inch Stroke Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Hydraulic Piston Cylinder Heavy Duty 1000 LBs : Automotive

Review: Good product, works well. Instructions iffy. - Installing this item was straightforward, except the instructions said to remove a red cap but there was none. There is an orange button which I left in place and others seem to have done the same. Works fine. Getting the old cylinder out was a PITA. There is a retaining clip on the bottom which, to be fair, the instructions did say to remove. I did not do this and wound up smacking the old one out of the base several times with the hammer side of my 8lb splitting maul. That worked but now I think it might have gone easier if I had removed the clip - perhaps it would have relieved the internal pressure and made the cylinder slightly narrower. To get the other end out of the chair mechanism I went to Harbor Freight and spent $12 on a big pipe wrench. 5 minutes after getting home it was out and the chair was usable again. Overall very happy. Would purchase again.
Review: Fits most standard office chairs! - Great replacement part, might have to get your hands dirty. Honestly, if you're heavy like me (250+ lbs) you are most likely gonna need tools to get you're old cylinder out. You'll need a Home Depot bucket, a can of silicone lube/wd40 a hammer and a pipe wrench. Flip your chair over and spry lube/wd40 in all of the seals, let it sit for 5 minutes. After the stem has sat, grab your pipe wrench and tighten it down on the stem right at the base of the chair (Right underneath where the seat cushion is) and twist HARD. You might need to do this multiple times and might also see the pipe wrench dig into the metal of the stem, thats perfectly ok, keep trying. After the stem and wheels are separated from the rest of the chair, you need to separate the stem and the wheel base. Re-lube what you can and set the assembly in the bucket with the wheel base facing upside-down. Using the hammer smack the wheel base off of the stem and let it fall into the bucket. After all of this, its time to install the new cylinder. Slot the new stem into the base with the wheels, after this set the center stem in the mount underneath the chair. let it all slot together. At this point you actually need to sit down on the chair to let the new assembly seat and lock in place. Sit in the chair and bounce up and down for a bit until you hear the chair locking into position. It can take a few tires for the chair to fully lock it, do if it feels loose at first, get trying!

## Features

- EASY INSTALLATION: No need spending hours to remove your chairs old broken cylinder, you can remove broken piston and install our gas lift for chair easily. We will also make sure to help guide you if you need.
- HEAVY DUTY CLASS 3 PISTON CHAIR: our office chair piston passed the top-level test of BIFMA and TUV certification, lifting up and down 100000 times.
- ADJUSTABLE CHAIR CYLINDER: 100mm Class 3 piston, extended total length 345mm, 360 degree rotation to all directions, freely lift and rotate your chair smooth and quietly.
- EXCELLENT ALTERNATIVE PARTS: Save your money is our goal. If your chair sinking, you don’t need to buy new chair directly. Choose our piston can save your money.
- UNIVERSAL SIZE THAT FITS MOST CHAIRS: Outer cylinder diameter 51mm (2 inches). Inner cylinder diameter 28mm (1.1 inches) fits the salon chairs, executive chairs, work chairs, rolling stools on the market, and has a better load-bearing capacity.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BRQ5K1W4 |
| Age Range (Description) | Adult |
| Arm Style | Armless |
| Assembly Instructions Description | Remove old cylinder, insert new one, and let parts fasten on their own. |
| Back Style | Solid Back |
| Best Sellers Rank | #320,384 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #745 in Home Office Desk Chairs |
| Brand | Subhtoh |
| Color | Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (556) |
| Date First Available | January 5, 2023 |
| Fill Material | Foam |
| Finish Type | Steel |
| Form Factor | Recliner |
| Furniture Finish | Black |
| Furniture base movement | Swivel |
| Included Components | chair |
| Indoor/Outdoor Usage | Indoor |
| Is Discontinued By Manufacturer | No |
| Is Foldable | No |
| Item Weight | 1.65 pounds |
| Item model number | CYA-BL40-S-R |
| Leg Style | Straight Leg |
| Manufacturer | SUBHTOH |
| Pattern | Solid |
| Product Care Instructions | Wipe Clean |
| Product Dimensions | 2.28"D x 2.19"W x 11.93"H |
| Reclining Position Count | 1 |
| Recommended Uses For Product | Gaming, Office |
| Room Type | Office |
| Shape | Rectangular |
| Size | 4.0 inch |
| Special Feature | Ergonomic |
| Style | Modern |
| Surface Recommendation | Hard Floor |
| Tilting | Yes |
| UPC | 606719381869 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Subhtoh
- **Color:** Black
- **Material:** Alloy Steel
- **Product Dimensions:** 2.28"D x 2.19"W x 11.93"H
- **Size:** 4.0 inch

## Images

![Universal Size Chair Cylinder Replacement Parts 4.0 inch Stroke Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Hydraulic Piston Cylinder Heavy Duty 1000 LBs - Image 1](https://m.media-amazon.com/images/I/51X9q22g9XL.jpg)

## Available Options

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

## Questions & Answers

**Q: is it easy to assemble the new cylinder?**
A: By Subhtoh
      




 







  
    
    
      
        Seller
      
    
  
  
     on May 18, 2022

**Q: Does this come with the old cylinder removal tool, the two circular clamps?**
A: No. But it is pretty easy to change out. My husband used a hammer to remove the old one. You don't need a lot of force to bump it out.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product, works well. Instructions iffy.
*by P***R on September 5, 2024*

Installing this item was straightforward, except the instructions said to remove a red cap but there was none. There is an orange button which I left in place and others seem to have done the same. Works fine. Getting the old cylinder out was a PITA. There is a retaining clip on the bottom which, to be fair, the instructions did say to remove. I did not do this and wound up smacking the old one out of the base several times with the hammer side of my 8lb splitting maul. That worked but now I think it might have gone easier if I had removed the clip - perhaps it would have relieved the internal pressure and made the cylinder slightly narrower. To get the other end out of the chair mechanism I went to Harbor Freight and spent $12 on a big pipe wrench. 5 minutes after getting home it was out and the chair was usable again. Overall very happy. Would purchase again.

### ⭐⭐⭐⭐⭐ Fits most standard office chairs!
*by D***N on December 4, 2025*

Great replacement part, might have to get your hands dirty. Honestly, if you're heavy like me (250+ lbs) you are most likely gonna need tools to get you're old cylinder out. You'll need a Home Depot bucket, a can of silicone lube/wd40 a hammer and a pipe wrench. Flip your chair over and spry lube/wd40 in all of the seals, let it sit for 5 minutes. After the stem has sat, grab your pipe wrench and tighten it down on the stem right at the base of the chair (Right underneath where the seat cushion is) and twist HARD. You might need to do this multiple times and might also see the pipe wrench dig into the metal of the stem, thats perfectly ok, keep trying. After the stem and wheels are separated from the rest of the chair, you need to separate the stem and the wheel base. Re-lube what you can and set the assembly in the bucket with the wheel base facing upside-down. Using the hammer smack the wheel base off of the stem and let it fall into the bucket. After all of this, its time to install the new cylinder. Slot the new stem into the base with the wheels, after this set the center stem in the mount underneath the chair. let it all slot together. At this point you actually need to sit down on the chair to let the new assembly seat and lock in place. Sit in the chair and bounce up and down for a bit until you hear the chair locking into position. It can take a few tires for the chair to fully lock it, do if it feels loose at first, get trying!

### ⭐⭐⭐⭐⭐ Holding up well.
*by A***Y on August 11, 2024*

I didn’t like that the parts were free floating in the box it came in and there was only one glove instead of two. It made me think that it was a previous return. Other than that, the quality seems to be well made and so far, it has been doing the job. I was having problems with my chair staying up and I didn’t want to buy a new office chair, so this was a great replacement option. The QR code that was supposed to show a video of instructions didn’t work, but I found other instructions online for removing the old place and putting the new one in.

## Frequently Bought Together

- Subhtoh Universal Size Chair Cylinder Replacement Parts 4.0 inch Stroke Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Hydraulic Piston Cylinder Heavy Duty 1000 LBs
- 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

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-21*