---
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: "71186CFA"
currency: XOF
in_stock: true
url: https://www.desertcart.sn/products/371114887-11-inches-17-inches-office-chair-gas-lift-cylinder-replacement
store_origin: SN
region: Senegal
---

# 5.5-inch adjustable stroke 360° smooth 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:** 71186CFA
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your throne, rise above the rest!

## 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?** 71186CFA 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/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 steel cylinder supports up to 1000 lbs for unmatched durability.
- • **Elevate Your Comfort:** Adjustable 5.5-inch gas lift stroke for perfect ergonomic height.
- • **Universal Compatibility:** Fits most office chairs including Herman Miller Aeron with precise 2" base diameter.
- • **Say Goodbye to Chair Sinking:** Reliable hydraulic piston eliminates annoying seat drop issues.
- • **Effortless Installation & Support:** No assembly needed, plus 100% satisfaction guarantee with expert customer care.

## Overview

Mastery Mart’s 11-17 inch adjustable gas lift cylinder is a heavy-duty, Class 4 pneumatic piston designed to fit most office chairs. With a 5.5-inch stroke and 1000 lbs weight capacity, it ensures smooth height adjustment and 360° swivel rotation, eliminating sinking problems for a premium ergonomic experience.

## Description

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)

## 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 |
|---------------|-------|
| Brand | MASTERY MART |
| Color | Matte Black |
| Size | 5.5'' Travel Length |
| Back Style | Mid Back |
| Unit Count | 1.0 Count |
| Pattern | Solid |
| Room Type | Office |
| Age Range (Description) | Adult |
| Included Components | Arm Pad |
| Shape | Cylindrical |
| Arm Style | Armless |
| Furniture base movement | Swivel |
| Indoor/Outdoor Usage | Indoor |
| Leg Style | Straight Leg |
| Reclining Position Count | 1 |
| Tilting | No |
| Is Customizable | No |
| Manufacturer | Mastery Mart Inc. |
| Assembly Instructions Description | No assembly required |
| Item Weight | 2.64 pounds |
| Product Dimensions | 11.81 x 2.17 x 2.17 inches |
| Item model number | GAS-LIFT-GL |
| Is Discontinued By Manufacturer | No |

## 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/41p-aRp3OcL.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”,

**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)
- 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sn/products/371114887-11-inches-17-inches-office-chair-gas-lift-cylinder-replacement](https://www.desertcart.sn/products/371114887-11-inches-17-inches-office-chair-gas-lift-cylinder-replacement)

---

*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-01-26*