---
product_id: 371114887
title: "11 Inches-17 Inches Office Chair Gas Lift Cylinder Replacement, Tall Chair Cylinder 5.5\" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Fit for Most Office Chairs, BIFMA/Class 4 (Black)"
brand: "mastery mart"
price: "313.19 DT"
currency: TND
in_stock: true
category: "Mastery Mart"
url: https://www.desertcart.tn/products/371114887-11-inches-17-inches-office-chair-gas-lift-cylinder-replacement
store_origin: TN
region: Tunisia
---

# 5.5-inch adjustable stroke 360° seamless swivel rotation Class 4 heavy-duty steel build 11 Inches-17 Inches Office Chair Gas Lift Cylinder Replacement, Tall Chair Cylinder 5.5" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Fit for Most Office Chairs, BIFMA/Class 4 (Black)

**Brand:** mastery mart
**Price:** 313.19 DT
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your throne with heavy-duty lift power!

## Quick Answers

- **What is this?** 11 Inches-17 Inches Office Chair Gas Lift Cylinder Replacement, Tall Chair Cylinder 5.5" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Fit for Most Office Chairs, BIFMA/Class 4 (Black) by mastery mart
- **How much does it cost?** 313.19 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/371114887-11-inches-17-inches-office-chair-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:** Premium Class 4 gas lift supports up to 1000 lbs, engineered for long-lasting durability.
- • **Risk-Free Upgrade:** Backed by 100% satisfaction guarantee with responsive support and hassle-free returns.
- • **Smooth & Stable Ride:** Hydraulic pneumatic shock piston eliminates sinking and ensures effortless 360° swivel.
- • **Elevate Your Workspace:** Adjustable 5.5-inch height stroke for personalized comfort and ergonomic excellence.
- • **Universal Compatibility:** Fits most office chairs including Herman Miller Aeron with precise 2-inch base diameter.

## Overview

This Mastery Mart 11-17 inch adjustable office chair gas lift cylinder features a 5.5-inch stroke, fits most office chairs including premium brands, and supports up to 1000 lbs with Class 4 heavy-duty steel construction. Designed for smooth height adjustment and 360-degree swivel, it eliminates sinking issues and comes with a satisfaction guarantee.

## Description

Buy 11 Inches-17 Inches Office Chair Gas Lift Cylinder Replacement, Tall Chair Cylinder 5.5" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Fit for Most Office Chairs, BIFMA/Class 4 (Black) on desertcart.com ✓ FREE SHIPPING on qualified orders

## Features

- 🏆【Adjustable Height 5.5 inches】The compressed length is 11.69 inches (297mm), the fully expanded length is 17.2 inches (437mm), sinking length is 1/2” (15mm), Stroke Length is 5.5 inches, which allows your chairs to rise higher. (Note: Please measure the length of the outer cylinder before purchase).
- 🏆【Universal Fit Size for Most Chairs】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 almost every office chair on the market including herman miller aeron. Please confirm these measurements before making a purchase. Not compatiable with 1KEA and some other brands.
- 🏆【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 (BIFMA/ANSI), the lift has a maximum capacity of 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 | B099R8HLS4 |
| Additional Features | Adjustable Height |
| Age Range Description | Adult |
| Arm Style | Armless |
| Assembly Instructions Description | No assembly required |
| Back Style | Mid Back |
| Best Sellers Rank | #8,898 in Office Products ( See Top 100 in Office Products ) #232 in Office Furniture Accessories |
| Brand | MASTERY MART |
| Brand Name | MASTERY MART |
| Color | Matte Black |
| Customer Reviews | 4.5 out of 5 stars 3,058 Reviews |
| Fill Material | Foam |
| Form Factor | Swivel Chair |
| Frame Material Type | Metal |
| Furniture Base Movement | Swivel |
| Included Components | Arm Pad |
| Indoor Outdoor Usage | Indoor |
| Item Depth | 5.5 inches |
| Item Dimensions | 11.81 x 2.17 x 2.17 inches |
| Item Dimensions D x W x H | 9.84"D x 1.97"W x 1.97"H |
| Item Weight | 2 pounds |
| Leg Style | Straight Leg |
| Manufacturer | Mastery Mart Inc. |
| Manufacturer Part Number | MM-REP-GL04 |
| Material | Metal |
| Material Type | Metal |
| Model Name | Office Chair Gas Cylinder |
| Model Number | GAS-LIFT-GL |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pattern | Solid |
| Product Dimensions | 9.84"D x 1.97"W x 1.97"H |
| Reclining Position Count | 1 |
| Recommended Uses For Product | Office |
| Room Type | Office |
| Shape | Cylindrical |
| Size | 5.5'' Travel Length |
| Style Name | Solid |
| Unit Count | 1 Count |

## Product Details

- **Brand:** MASTERY MART
- **Color:** Matte Black
- **Material:** Metal
- **Size:** 5.5'' Travel Length
- **Item Weight:** 1.2 Kilograms

## Images

![11 Inches-17 Inches Office Chair Gas Lift Cylinder Replacement, Tall Chair Cylinder 5.5" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Fit for Most Office Chairs, BIFMA/Class 4 (Black) - Image 1](https://m.media-amazon.com/images/I/41qa01Qdv-L.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 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.

## Frequently Bought Together

- 11 Inches-17 Inches Office Chair Gas Lift Cylinder Replacement, Tall Chair Cylinder 5.5" Stroke, Hydraulic Pneumatic Shock Piston, Heavy Duty 1000lbs, Fit for Most Office Chairs, BIFMA/Class 4 (Black)
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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-29*