---
product_id: 371730426
title: "14 Inches-22 Inches Extra Long Gas Lift Cylinder Replacement, 8\" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Universal Fit For Drafting Chairs Bar Stools, Class 4, Black"
brand: "mastery mart"
price: "96502CFA"
currency: XOF
in_stock: true
reviews_count: 13
category: "Mastery Mart"
url: https://www.desertcart.sn/products/371730426-14-inches-22-inches-extra-long-gas-lift-cylinder-replacement
store_origin: SN
region: Senegal
---

# 8-inch adjustable stroke Universal fit for drafting chairs Class 4 heavy-duty steel 14 Inches-22 Inches Extra Long Gas Lift Cylinder Replacement, 8" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Universal Fit For Drafting Chairs Bar Stools, Class 4, Black

**Brand:** mastery mart
**Price:** 96502CFA
**Availability:** ✅ In Stock

## Summary

> 🪑 Upgrade your throne, rule your workspace!

## Quick Answers

- **What is this?** 14 Inches-22 Inches Extra Long Gas Lift Cylinder Replacement, 8" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Universal Fit For Drafting Chairs Bar Stools, Class 4, Black by mastery mart
- **How much does it cost?** 96502CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/371730426-14-inches-22-inches-extra-long-gas-lift-cylinder-replacement)

## Best For

- mastery mart enthusiasts

## Why This Product

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

## Key Features

- • **Built to Endure:** Class 4 steel construction supports up to 1000 lbs—durability you can trust.
- • **Effortless DIY Upgrade:** Quick install with no hassle—transform your chair in minutes and impress your guests.
- • **Say Goodbye to Chair Sinking:** Reliable pneumatic lift eliminates annoying seat drop—stay confidently seated.
- • **Elevate Your Workspace Comfort:** Smooth 8-inch height adjustment for perfect posture and productivity.
- • **Seamless Universal Compatibility:** Fits most drafting chairs and bar stools with precise 2" diameter base.

## Overview

This 14-22 inch extra-long gas lift cylinder offers an 8-inch adjustable stroke, crafted from premium Class 4 steel to support up to 1000 lbs. Designed for universal compatibility with most drafting chairs and bar stools, it ensures smooth height adjustment and 360-degree rotation while eliminating sinking issues. Easy to install and built for heavy-duty use, it’s the ultimate upgrade for professionals seeking ergonomic comfort and lasting reliability.

## Description

Buy 14 Inches-22 Inches Extra Long Gas Lift Cylinder Replacement, 8" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Universal Fit For Drafting Chairs Bar Stools, Class 4, Black: Furniture Accessories - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Perfect Fit and Works Exactly as Expected - Great replacement cylinder! The size was spot-on, installation was straightforward, and it brought my chair right back to the height and stability it originally had. Smooth lift, solid feel, and no sinking issues at all. Exactly what I needed highly recommend if you’re repairing or upgrading an office chair.
Review: Hallelujah the chair is fixed! - This worked perfectly to fix our computer chair and our manners! It was embarrassing to slowly sink uncontrollably in our computer chair every time we sat in it - especially in front of guests. It was easy to assemble and the chair feels very sturdy now. I love not sinking anymore! It really is the little things in life that make me feel happy, this chair part helped a lot!

## Features

- 🏆【Adjustable Height 8 inches】The compressed length is 13.97 inches (355mm), the fully expanded length is 21.85 inches (555mm), travel length is 8 inches, which allows your chairs to rise higher. (Note: Please measure the length of the outer cylinder before purchase).
- 🏆【Dimensions of Chair Cylinder】The outer column cylinder diameter connected to the base is 2 inches (50mm), and the piston shaft diameter connected to the chair is 1-1/8" (28mm). This pneumatic piston cylinder will fit most drafting chairs and bar stools. Please confirm these measurements before making a purchase. Not compatible with 1KEA chair and some other models that have a cable pin hook on the top of the cylinder.
- 🏆【Upgraded Class 4 Gas Cylinder】Mastery Mart's office chair cylinder replacement is made of premium steel. This heavy-duty gas lift cylinder is manufactured to meet the highest industry standard Class 4 (BIFMA/ANSI). The pneumatic lift replacement supports up to 1000 lbs.
- 🏆【Eliminate Sinking Concerns】Prevent sinking issues by removing the old cylinder using a hammer or wrench. Simply assemble our new cylinder into the base and attach the seat. Our office chair lift provides seamless 360-degree rotation.
- 🏆【100% Satisfaction Guaranteed】For any issues with using our chair shock replacement, please don't hesitate to contact us. We are here to provide guidance, offer replacements, or process refunds, depending on your specific case. Your satisfaction is our priority.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B099RMKP99 |
| Age Range (Description) | Adult |
| Arm Style | Armless |
| Assembly Instructions Description | DIY |
| Back Style | Mid Back |
| Best Sellers Rank | #5,984 in Office Products ( See Top 100 in Office Products ) #133 in Office Furniture Accessories |
| Brand | MASTERY MART |
| Color | Matte Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,790) |
| Date First Available | October 12, 2021 |
| Fill Material | Foam |
| Form Factor | Tower |
| Included Components | No components included |
| Indoor/Outdoor Usage | Indoor |
| Is Customizable | No |
| Is Discontinued By Manufacturer | No |
| Is Foldable | No |
| Item Weight | 1.76 pounds |
| Item model number | GAS-AD8 |
| Leg Style | Straight Leg |
| Manufacturer | Mastery Mart Co., Limited |
| Pattern | Solid |
| Product Care Instructions | Wipe Clean |
| Product Dimensions | 13.9"D x 2"W x 2"H |
| Reclining Position Count | 1 |
| Room Type | Office |
| Shape | Cylindrical |
| Size | 8'' Travel Length |
| Special Feature | Durable, Easy to Replace and Install, Heave Duty, Quality Guaranteed, Universal Fit |
| Style | Solid |
| Unit Count | 1 Count |

## Product Details

- **Brand:** MASTERY MART
- **Color:** Matte Black
- **Material:** Alloy Steel
- **Product Dimensions:** 13.9"D x 2"W x 2"H
- **Size:** 8'' Travel Length

## Images

![14 Inches-22 Inches Extra Long Gas Lift Cylinder Replacement, 8" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Universal Fit For Drafting Chairs Bar Stools, Class 4, Black - Image 1](https://m.media-amazon.com/images/I/51osjvW2tSL.jpg)

## Available Options

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

## Questions & Answers

**Q: How durable is this gas lift?**
A: The office chair cylinder is made from high-strength alloy steel, high-quality thickened outer steel, high safety and explosion-proof. The gas lift cylinder has passed SGS official test and BIFMA certification, highest safety Class 4.

**Q: Will this chair cyinder fit on the herman miller aeron office chair?**
A: Yes, our cylinder measures 1-1/8” (28mm) at the top, where it fits into the chair seat, shaft diameter 2” (50mm) at the bottom, where it fits into the chair base, you can measure your original cylinder before ordering.

**Q: What are the measurements of the cylinder, shortest and longest height as well as overall length and width?**
A: Top of the cylinder: 1-1/8”, Shaft diameter：2”, Shortest and longest height for 4“ stroke ( 9.7 Inch -13.6 Inch ); 4.8“ stroke ( 10.7 Inch -15.5 Inch ); 6“ stroke ( 11.5 Inch -17.5 Inch ); 8“ stroke ( 14.7 Inch -22.2 Inch ).

**Q: Will this chair cyinder work for 1KEA office chair?**
A: No.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect Fit and Works Exactly as Expected
*by Y***H on December 11, 2025*

Great replacement cylinder! The size was spot-on, installation was straightforward, and it brought my chair right back to the height and stability it originally had. Smooth lift, solid feel, and no sinking issues at all. Exactly what I needed highly recommend if you’re repairing or upgrading an office chair.

### ⭐⭐⭐⭐⭐ Hallelujah the chair is fixed!
*by Y***E on January 17, 2026*

This worked perfectly to fix our computer chair and our manners! It was embarrassing to slowly sink uncontrollably in our computer chair every time we sat in it - especially in front of guests. It was easy to assemble and the chair feels very sturdy now. I love not sinking anymore! It really is the little things in life that make me feel happy, this chair part helped a lot!

### ⭐⭐⭐⭐⭐ Steel Case Leap V2
*by J***L on January 13, 2026*

Works great with my Steel Case Leap V2. The previous strut never worked all that great but this new one is soft and doesnt drop down. I went with a taller one to fit my desk heigh of 36" and its a perfect match with the 11-17 inch.

## Frequently Bought Together

- 14 Inches-22 Inches Extra Long Gas Lift Cylinder Replacement, 8" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Universal Fit For Drafting Chairs Bar Stools, Class 4, Black
- Mastery Mart Office Chair Caster Wheels for Hardwood Floors, Heavy Duty and Quiet Smooth Rollerblade Wheels for Office Chair, Universal Size (11x22mm), Suitable for Most 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

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-12*