---
product_id: 253878512
title: "9 Inches to 13 Inches Office Chair Cylinder Replacement, 4\" Stroke, Heavy Duty 1000lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4, Black"
brand: "mastery mart"
price: "12571CFA"
currency: XOF
in_stock: false
url: https://www.desertcart.sn/products/253878512-9-inches-to-13-inches-office-chair-cylinder-replacement-4
store_origin: SN
region: Senegal
---

# 360° seamless chair rotation 4-inch adjustable height stroke Class 4 heavy-duty steel build 9 Inches to 13 Inches Office Chair Cylinder Replacement, 4" Stroke, Heavy Duty 1000lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4, Black

**Brand:** mastery mart
**Price:** 12571CFA
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Upgrade your throne with power and precision!

## Quick Answers

- **What is this?** 9 Inches to 13 Inches Office Chair Cylinder Replacement, 4" Stroke, Heavy Duty 1000lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4, Black by mastery mart
- **How much does it cost?** 12571CFA with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/253878512-9-inches-to-13-inches-office-chair-cylinder-replacement-4)

## 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 gas cylinder supports up to 1000 lbs, engineered with premium steel for unmatched durability.
- • **Elevate Your Comfort:** Adjust your chair height smoothly with a 4-inch stroke for perfect ergonomic alignment.
- • **Effortless Installation:** Quick swap design lets you replace your old cylinder with simple tools—no hassle, no downtime.
- • **Universal Compatibility:** Fits most office chairs including premium models like Herman Miller Aeron—measure once, upgrade forever.
- • **Say Goodbye to Chair Sinking:** Reliable hydraulic piston eliminates annoying sinking issues, keeping you stable and focused.

## Overview

The MASTERY MART 9-13 inch adjustable office chair gas lift cylinder offers a heavy-duty Class 4 pneumatic piston with a 4-inch stroke, supporting up to 1000 lbs. Designed for universal fit on most office chairs, including high-end models, it ensures smooth height adjustment and 360-degree rotation while eliminating sinking issues. Crafted from premium steel and finished in matte black, this replacement cylinder combines durability with effortless installation for a seamless ergonomic upgrade.

## Description

MASTERY MART Office Chair Gas Lift Cylinder Replacement, 4'' Stroke Length, Heavy Duty 1000 LBs, Hydraulic Pneumatic Shock Piston, Universal Size Fits Most Office Chair, Class 4 (Matte Black)

## Features

- 🏆【Adjustable Height 4 inches】The compressed length is 9.88 inches (251mm), the fully expanded length is 13.6 inches (346mm), sinking length is 1/2" (15mm), stroke length is 4 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 compatible 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 rubber mallet or pipe 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 |
| Model Number | MF-PT001 |
| Color | Matte Black, 2020 Version |
| Product Dimensions | 25 x 5 x 5 cm; 800 g |
| Material | Metal |
| Special Features | Adjustable Height |
| Item Weight | 800 g |

## Product Details

- **Brand:** MASTERY MART
- **Colour:** Matte Black, 2020 Version
- **Material:** Metal
- **Product dimensions:** 5D x 5W x 25H centimeters
- **Size:** 4'' Travel Length

## Images

![9 Inches to 13 Inches Office Chair Cylinder Replacement, 4" Stroke, Heavy Duty 1000lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4, Black - Image 1](https://m.media-amazon.com/images/I/51vgc3GW7CL.jpg)
![9 Inches to 13 Inches Office Chair Cylinder Replacement, 4" Stroke, Heavy Duty 1000lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4, Black - Image 2](https://m.media-amazon.com/images/I/71BGO-k6POL.jpg)
![9 Inches to 13 Inches Office Chair Cylinder Replacement, 4" Stroke, Heavy Duty 1000lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4, Black - Image 3](https://m.media-amazon.com/images/I/712jX+y1pFL.jpg)
![9 Inches to 13 Inches Office Chair Cylinder Replacement, 4" Stroke, Heavy Duty 1000lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4, Black - Image 4](https://m.media-amazon.com/images/I/71255OW7a4L.jpg)
![9 Inches to 13 Inches Office Chair Cylinder Replacement, 4" Stroke, Heavy Duty 1000lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4, Black - Image 5](https://m.media-amazon.com/images/I/81SCT4Z-F7L.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 ( 9.88 Inches -13.6 Inches ); 4.5“ stroke ( 10.7 Inches -15.2 Inches ); 5.5“ stroke ( 11.7 Inches -17.2 Inches ); 8“ stroke ( 14 Inches -21.8 Inches ).

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

## Frequently Bought Together

- 9 Inches to 13 Inches Office Chair Cylinder Replacement, 4" Stroke, Heavy Duty 1000lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4, Black
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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-01-26*