---
product_id: 230147090
title: "9 Inches to 13 Inches Office Chair Cylinder Replacement, 4'' Stroke, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4 (Polished Steel)"
brand: "mastery mart"
price: "65377CFA"
currency: XOF
in_stock: true
reviews_count: 8
category: "Mastery Mart"
url: https://www.desertcart.sn/products/230147090-9-inches-to-13-inches-office-chair-cylinder-replacement-4
store_origin: SN
region: Senegal
---

# 4'' adjustable height stroke Universal fit for most office chairs Class 4 heavy-duty steel build 9 Inches to 13 Inches Office Chair Cylinder Replacement, 4'' Stroke, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4 (Polished Steel)

**Brand:** mastery mart
**Price:** 65377CFA
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your throne: Rise higher, sit stronger, work smarter!

## Quick Answers

- **What is this?** 9 Inches to 13 Inches Office Chair Cylinder Replacement, 4'' Stroke, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4 (Polished Steel) by mastery mart
- **How much does it cost?** 65377CFA 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/230147090-9-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:** Premium Class 4 polished steel supports up to 1000 lbs without sinking.
- • **Elevate Your Comfort:** Smooth 4-inch height adjustment for personalized seating.
- • **Seamless Compatibility:** Fits nearly all office chairs including Herman Miller Aeron for effortless upgrades.
- • **Effortless Installation:** Quick replacement with simple tools—no more embarrassing chair sinking moments.
- • **Trusted Quality & Support:** Backed by industry standards and a satisfaction guarantee for peace of mind.

## Overview

This Mastery Mart Class 4 polished steel office chair gas cylinder offers a robust 4-inch adjustable height range, supporting up to 1000 lbs. Designed for universal compatibility with most office chairs, it ensures smooth, stable seating with easy installation and industry-leading durability.

## Description

Buy 9 Inches to 13 Inches Office Chair Cylinder Replacement, 4'' Stroke, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4 (Polished Steel): 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 4 inches】The compressed length is 9.88 inches (251mm), the fully expanded length is 13.6 inches (346mm), travel 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 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 | B0859WSH26 |
| Additional Features | Durable, Easy to Replace and Install, Heave Duty, Quality Guaranteed, Universal Fit |
| Age Range Description | Adult |
| Arm Style | Armless |
| Best Sellers Rank | #6,509 in Office Products ( See Top 100 in Office Products ) #165 in Office Furniture Accessories |
| Brand | MASTERY MART |
| Brand Name | MASTERY MART |
| Color | Polished Steel |
| Customer Reviews | 4.5 out of 5 stars 2,779 Reviews |
| Finish Types | Polished |
| Frame Material Type | Metal |
| Furniture Base Movement | Swivel |
| Indoor Outdoor Usage | Indoor |
| Is Customizable? | No |
| Is Foldable | No |
| Item Dimensions D x W x H | 9.8"D x 2"W x 2"H |
| Item Height | 5 centimeters |
| Item Type Name | Electroplating |
| Item Weight | 1 Kilograms |
| Leg Style | Straight Leg |
| Manufacturer | Mastery Mart Inc. |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Maximum Weight Recommendation | 1000 Pounds |
| Model Number | GAS-LIFT-GL |
| Pattern | Solid |
| Product Dimensions | 9.8"D x 2"W x 2"H |
| Reclining Position Count | 1 |
| Recommended Uses For Product | Office |
| Room Type | Office |
| Seat Depth | 9.7 inches |
| Seat Material | Metal |
| Size | 4'' Travel Length |
| Style Name | Solid |
| Surface Recommendation | Hard Floor |
| Tilting | No |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** MASTERY MART
- **Color:** Polished Steel
- **Product Dimensions:** 9.8"D x 2"W x 2"H
- **Size:** 4'' Travel Length
- **Special Feature:** Durable, Easy to Replace and Install, Heave Duty, Quality Guaranteed, Universal Fit

## Images

![9 Inches to 13 Inches Office Chair Cylinder Replacement, 4'' Stroke, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4 (Polished Steel) - Image 1](https://m.media-amazon.com/images/I/51hwtAR-q2L.jpg)
![9 Inches to 13 Inches Office Chair Cylinder Replacement, 4'' Stroke, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4 (Polished Steel) - Image 2](https://m.media-amazon.com/images/I/716ClsIqMlL.jpg)
![9 Inches to 13 Inches Office Chair Cylinder Replacement, 4'' Stroke, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4 (Polished Steel) - Image 3](https://m.media-amazon.com/images/I/71QaxasF5HL.jpg)
![9 Inches to 13 Inches Office Chair Cylinder Replacement, 4'' Stroke, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4 (Polished Steel) - Image 4](https://m.media-amazon.com/images/I/71iZNwVwdXL.jpg)
![9 Inches to 13 Inches Office Chair Cylinder Replacement, 4'' Stroke, Heavy Duty 1000 lbs, Hydraulic Pneumatic Shock Piston, Universal Gas Cylinder Fit for Most Office Chairs, Class 4 (Polished Steel) - Image 5](https://m.media-amazon.com/images/I/71jjocXNSgL.jpg)

## 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.

## 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

- MASTERY MART 9 Inches to 13 Inches Gas Lift Cylinder for Most Office Chair, 4" Stroke, Heavy Duty 1000 lbs, Office Chair Gas Lift Cylinder Replacement, Class 4 (Not for 1KEA, Silver)
- MASTERY MART Office Chair Base Replacement, 28 Inch Heavy Duty 2500Lbs Metal Leg, Reinforced for Swivel Gaming Chair, Universal Caster and Gas Cylinder Size, Polished Steel
- MasteryMart Rollerblade Style Caster Wheels Replacement Set of 5 for Office Chair, Office Chair Wheels Universal Size 11x22mm, Rubber Casters for All Floors, Heavy Duty, Smooth (Not for 1KEA, Silver)

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