---
product_id: 62700573
title: "5\" Chair Hydraulic Cylinder Replacement for Office Chair Gas Lift Cylinder"
brand: "dozyant"
price: "¥11707"
currency: JPY
in_stock: true
reviews_count: 13
category: "Dozyant"
url: https://www.desertcart.jp/products/62700573-5-chair-hydraulic-cylinder-replacement-for-office-chair-gas-lift
store_origin: JP
region: Japan
---

# 450 lbs max load 5-inch adjustable stroke 360° smooth rotation 5" Chair Hydraulic Cylinder Replacement for Office Chair Gas Lift Cylinder

**Brand:** dozyant
**Price:** ¥11707
**Availability:** ✅ In Stock

## Summary

> 💼 Elevate your workspace with power, precision, and effortless style!

## Quick Answers

- **What is this?** 5" Chair Hydraulic Cylinder Replacement for Office Chair Gas Lift Cylinder by dozyant
- **How much does it cost?** ¥11707 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/62700573-5-chair-hydraulic-cylinder-replacement-for-office-chair-gas-lift)

## 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

- • **Seamless Mobility:** Experience whisper-quiet, full 360° swivel without a hitch
- • **Heavy-Duty Strength:** Supports up to 450 lbs for executive-grade durability
- • **Precision Height Control:** 5-inch adjustable stroke for perfect ergonomic positioning
- • **Premium Class 4 Cylinder:** Top-tier alloy steel build ensures long-lasting, reliable performance
- • **Universal Fit & Easy Install:** Fits most office chairs with no extra screws needed—upgrade in minutes

## Overview

This 5-inch Class 4 hydraulic gas lift cylinder replacement is engineered for professional office chairs, supporting up to 450 lbs with smooth, noiseless 360° rotation and a 5-inch adjustable height range. Crafted from durable alloy steel, it offers universal compatibility and easy installation, making it the ultimate upgrade for executive comfort and reliability.

## Description

Buy 5" Chair Hydraulic Cylinder Replacement for Office Chair Gas Lift Cylinder | Universal Class 4 office chair gas lift cylinder replacement 450 lbs heavy duty piston fits most executive office desk chairs: Lifting Cylinders - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: I am tall - this does the job - I beat the old one out by whacking it with a sledgehammer. I would not say it was easy but it's no more difficult than any other tube would be to install. The right tools would be a must especially for someone who hasn't done it before. I have a bit of experience assembling chairs (unfortunately!) and so I knew how to get the tube out hitting in the correct spots. For the bottom part of the tube that connects to the legs/casters I turned the chair sideways so the floor was supporting the chair and the legs and then I beat the bottom of the tube out of the legs with a small metal mallet/sledgehammer. After removing the legs, I needed to get the chair off the top of the tube. For the top of the tube I slightly damaged the paint under my chair whacking the metal all around the chair near the top of the tube to try to pop the chair off the tube. I did not whack the tube, only around it with firm strokes parallel to the tube, hitting the base of the chair near the tube's connection, carefully tapping it out. Or actually not very carfully- you do have to whack it good. While whacking I had a good grip on the base of the tube pulling it away from the chair as I whacked the chair. The you put the new tube in the base, carefully align the seat to the top of the tube and set it straight down. Carefully knee it in the middle to make sure it's snug and centered and solid then put some weight on it by sitting. Bounce a bit to get it good and snug. Done. After I got the new tube on, and with the chair upright, you can't see the paint marks that I made, so it's fine for me. Also, like some others, I have trouble getting the thing to activate up and down. Make sure you fully compress the chair seat onto the top of the tube. Bounce your butt square in the middle to get it good and snug. Wiggle and bounce. Then try to activate it, maybe bounce a bit while trying to activate it. I noticed the knobby on the top of this tube is a bit smaller than the knobby on the tube that came with my chair. That's probably why it's difficult to activate. Anyway, once I got it activated and the chair lifted up and I could swing my feet I felt like I was in heaven. I'm 6'2 and I probably am on the longer side of average when it comes to my legs... In other words I have long legs, not short legs. This is important because some tall guys have a longer torso and shorter legs - not drastic enough to notice but definitely enough to matter when it comes to your chair height. Point is that this tube should be fine for most 6'2" guys. However I will say it's just barely enough. I also have 4" wheels on my chair too, so that might be something you need to look into. I bought these and they've been great for me: https://www.desertcart.com/gp/product/B00NFQAVZA/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 I won't need to adjust the chair at all so the adjustment being finicky doesn't bother me. It's amazing to sit at my desk without having to tuck my legs and feet in odd positions.. Five stars because this product, while not perfect, I think it is a good functionality for the price. I hope it lasts!
Review: Great for Big Man and Easier to Install than it looks! - Seems like a high quality product. Just installed today. We'll see! I am 6' 5" tall and just under 300 pounds! This thing raises higher than the blown out cylinder which is a plus. It also accommodates my weight so there is no worry there. I would recommend this item over the competition that comes with gloves and a couple rings (plastic and can break, read others reviews!) that help you pull apart. For the same cost, get this item, a small can of WD 40, and a 14" pipe wrench (that won't break and you can use for something else) all for the same cost or less that the combo thingy. Lube the old cylinder that typically sticks under the seat, with the WD 40, then afterwards, use pipe wrench and viola!. Chair is repaired and you got WD 40 and a pipe wrench. Update: it’s now 3 years later and the thrill is gone. Chair sinks ever so slowly you don’t realize how much until I’ve gotten up and came back to realize the lowered position. About to reorder this one or another brand. Good that I have WD40 and pipe wrench available. 6 May 2024: My new cyclinder came in yesterday and it is the exact one I originally ordered. I was actually pleased with the maker, even though it only lasted 3 years. $20-$25 dollars to get three years is worth it to me. Again, I have all the tools mentioned before and the removal and install processes were the same. I sitting pretty again. Also at the start I am 6'5" and was 280lbs. Same height but now 245 lbs so I should get an extra year (?) We will see.

## Features

- 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
- 5’’ STROKE FOR ADJUSTING CHAIR HEIGHT: Minimum length: 10 inches; maximum length when fully extended: 15 inches; adjustable range: 5 inches
- EASY INSTALLATION : Can be installed easily with no additional screws required.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B078BPJ6W1 |
| Age Range Description | Adult |
| Arm Style | Armless |
| Assembly Instructions Description | Tip the chair onto its side. Use the rubber mallet to tap and remove the base of the chair away from the seat. Use the pipe wrench to clamp tightly onto the top of the cylinder. Twist and then pull up in order to remove the cylinder. Remove the orange cap of the new cylinder. Insert the bottom of the cylinder into the center of the chair base. Carefully lift both the chair base and the chair cylin… |
| Back Style | Solid Back |
| Best Sellers Rank | #19,410 in Office Products ( See Top 100 in Office Products ) #497 in Office Furniture Accessories |
| Brand | DOZYANT |
| Brand Name | DOZYANT |
| Color | Black |
| Customer Reviews | 4.5 out of 5 stars 7,769 Reviews |
| Fill Material | Plastic |
| Form Factor | 360 |
| Frame Material Type | Alloy Steel |
| Furniture Base Movement | Swivel |
| Global Trade Identification Number | 00765673999159 |
| Indoor Outdoor Usage | Indoor |
| Item Depth | 11 inches |
| Item Dimensions | 11 x 8.6 x 2 inches |
| Item Dimensions D x W x H | 11"D x 8.6"W x 2"H |
| Item Highlight | Universal Class 4 office chair gas lift cylinder replacement 450 lbs heavy duty piston fits most executive office desk chairs |
| Item Type Name | Hydraulic Pneumatic Shock Piston Heavy Duty |
| Item Weight | 1.9 pounds |
| Leg Style | Straight Leg |
| Manufacturer | DOZYANT |
| Manufacturer Part Number | 120-QG |
| Manufacturer Warranty Description | N. |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Maximum Weight Recommendation | 450 pounds |
| Model Name | Gas Lift Cylinder, Office Chair Gas Lift Cylinder Replacement |
| Model Number | 120-TKee |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pattern | Solid |
| Product Care Instructions | Wipe Clean |
| Product Dimensions | 11"D x 8.6"W x 2"H |
| Reclining Position Count | 1 |
| Recommended Uses For Product | Office |
| Room Type | Office |
| Seat Depth | 8.6 inches |
| Seat Height | 15 inches |
| Seat Material | Plastic |
| Shape | cylinder |
| Size | 5 inch |
| Style Name | Formal |
| Surface Recommendation | Hard Floor |
| UPC | 765673999159 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** DOZYANT
- **Color:** Black
- **Material:** Alloy Steel
- **Product Dimensions:** 11"D x 8.6"W x 2"H
- **Size:** 5 inch

## Images

![5" Chair Hydraulic Cylinder Replacement for Office Chair Gas Lift Cylinder - Image 1](https://m.media-amazon.com/images/I/51uqmfakZML.jpg)

## Available Options

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

## Questions & Answers

**Q: Does this shock sit you up higher than most chairs**
A: "Than most chairs?"  NO.  There is no "most chairs". This is 5" extension model (really 4 1/2) which is middle of the 3 standard extension.  You need to measure the total compression, lowest to highest, of your existing chair and get the model that matches it (or changes it if you want that).

**Q: Is the weight capacity rating correct (1,000 lbs.)? this is the only i've seen with that rating at comparable prices. thanks.**
A: I know it is much higher than any of the other chairs I have had it also adjusts to much higher height if need be. I have not tested to 1000 lbs but it is very sturdy even if using all day, everyday.

**Q: I have an effezeta executive office leather chair made in Italy. Will this gas cylinder fit?**
A: You would need to find out if your chairs cylinder is replaceable and if it uses the same size cylinder.  The cylinders work great, I have replaced the cylinder in two chairs and they work great.

**Q: What is the length of the gas lift cylinder?**
A: 10", 15" extended. So 5" of adjustable height.

## Customer Reviews

### ⭐⭐⭐⭐⭐ I am tall - this does the job
*by R***S on May 20, 2020*

I beat the old one out by whacking it with a sledgehammer. I would not say it was easy but it's no more difficult than any other tube would be to install. The right tools would be a must especially for someone who hasn't done it before. I have a bit of experience assembling chairs (unfortunately!) and so I knew how to get the tube out hitting in the correct spots. For the bottom part of the tube that connects to the legs/casters I turned the chair sideways so the floor was supporting the chair and the legs and then I beat the bottom of the tube out of the legs with a small metal mallet/sledgehammer. After removing the legs, I needed to get the chair off the top of the tube. For the top of the tube I slightly damaged the paint under my chair whacking the metal all around the chair near the top of the tube to try to pop the chair off the tube. I did not whack the tube, only around it with firm strokes parallel to the tube, hitting the base of the chair near the tube's connection, carefully tapping it out. Or actually not very carfully- you do have to whack it good. While whacking I had a good grip on the base of the tube pulling it away from the chair as I whacked the chair. The you put the new tube in the base, carefully align the seat to the top of the tube and set it straight down. Carefully knee it in the middle to make sure it's snug and centered and solid then put some weight on it by sitting. Bounce a bit to get it good and snug. Done. After I got the new tube on, and with the chair upright, you can't see the paint marks that I made, so it's fine for me. Also, like some others, I have trouble getting the thing to activate up and down. Make sure you fully compress the chair seat onto the top of the tube. Bounce your butt square in the middle to get it good and snug. Wiggle and bounce. Then try to activate it, maybe bounce a bit while trying to activate it. I noticed the knobby on the top of this tube is a bit smaller than the knobby on the tube that came with my chair. That's probably why it's difficult to activate. Anyway, once I got it activated and the chair lifted up and I could swing my feet I felt like I was in heaven. I'm 6'2 and I probably am on the longer side of average when it comes to my legs... In other words I have long legs, not short legs. This is important because some tall guys have a longer torso and shorter legs - not drastic enough to notice but definitely enough to matter when it comes to your chair height. Point is that this tube should be fine for most 6'2" guys. However I will say it's just barely enough. I also have 4" wheels on my chair too, so that might be something you need to look into. I bought these and they've been great for me: https://www.amazon.com/gp/product/B00NFQAVZA/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1 I won't need to adjust the chair at all so the adjustment being finicky doesn't bother me. It's amazing to sit at my desk without having to tuck my legs and feet in odd positions.. Five stars because this product, while not perfect, I think it is a good functionality for the price. I hope it lasts!

### ⭐⭐⭐⭐⭐ Great for Big Man and Easier to Install than it looks!
*by D***X on February 20, 2021*

Seems like a high quality product. Just installed today. We'll see! I am 6' 5" tall and just under 300 pounds! This thing raises higher than the blown out cylinder which is a plus. It also accommodates my weight so there is no worry there. I would recommend this item over the competition that comes with gloves and a couple rings (plastic and can break, read others reviews!) that help you pull apart. For the same cost, get this item, a small can of WD 40, and a 14" pipe wrench (that won't break and you can use for something else) all for the same cost or less that the combo thingy. Lube the old cylinder that typically sticks under the seat, with the WD 40, then afterwards, use pipe wrench and viola!. Chair is repaired and you got WD 40 and a pipe wrench. Update: it’s now 3 years later and the thrill is gone. Chair sinks ever so slowly you don’t realize how much until I’ve gotten up and came back to realize the lowered position. About to reorder this one or another brand. Good that I have WD40 and pipe wrench available. 6 May 2024: My new cyclinder came in yesterday and it is the exact one I originally ordered. I was actually pleased with the maker, even though it only lasted 3 years. $20-$25 dollars to get three years is worth it to me. Again, I have all the tools mentioned before and the removal and install processes were the same. I sitting pretty again. Also at the start I am 6'5" and was 280lbs. Same height but now 245 lbs so I should get an extra year (?) We will see.

### ⭐⭐⭐⭐⭐ Office Chair Savior – DOZYANT Gas Lift Cylinder!
*by S***N on October 29, 2023*

When the gas lift on my office chair started giving out, I was on the brink of buying a whole new chair. That’s when I stumbled upon the DOZYANT Gas Lift Cylinder, and I decided to give it a shot. This decision turned out to be a game changer! The installation process was incredibly easy, and it fit my executive chair like a glove, thanks to its universal size design. It's evident that this cylinder is built to last, supporting up to 450 lbs with a seamless and smooth operation, making it feel like I've got a brand new chair. The hydraulic pneumatic shock piston operates flawlessly, providing the perfect amount of lift and stability. What impressed me the most is how it has transformed my seating experience at work, ensuring comfort throughout my long hours at the desk. This product is a lifesaver for anyone looking to fix their office chair without breaking the bank. The DOZYANT Gas Lift Cylinder is a high-quality, durable solution that I would highly recommend to anyone facing similar chair woes. It’s truly a top-notch product and the highest end of its class!

## Frequently Bought Together

- DOZYANT Gas Lift Cylinder Replacement,Hydraulic Pneumatic Shock Piston Heavy Duty (450 lbs) Universal Size Fits Most Executive Office Chairs, Highest End Class 4
- TICONN Office Chair Caster Wheels Set of 5 for Tile, Hardwood Floors and Carpets, Universal Fit for Most Chairs (Black)
- 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

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-07*