--- product_id: 529719367 title: "Universal Size Chair Cylinder Replacement Parts 4.0 inch Stroke Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Hydraulic Piston Cylinder Heavy Duty 1000 LBs" brand: "subhtoh" price: "KD 11.60" currency: KWD in_stock: true reviews_count: 13 category: "Subhtoh" url: https://www.desertcart.com.kw/products/529719367-universal-size-chair-cylinder-replacement-parts-4-0-inch-stroke store_origin: KW region: Kuwait --- # 360° smooth rotation 1000 lbs heavy-duty lift easy DIY installation Universal Size Chair Cylinder Replacement Parts 4.0 inch Stroke Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Hydraulic Piston Cylinder Heavy Duty 1000 LBs **Brand:** subhtoh **Price:** KD 11.60 **Availability:** ✅ In Stock ## Summary > 🪑 Elevate your seat game—stronger, smoother, smarter! ## Quick Answers - **What is this?** Universal Size Chair Cylinder Replacement Parts 4.0 inch Stroke Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Hydraulic Piston Cylinder Heavy Duty 1000 LBs by subhtoh - **How much does it cost?** KD 11.60 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/529719367-universal-size-chair-cylinder-replacement-parts-4-0-inch-stroke) ## Best For - subhtoh enthusiasts ## Why This Product - Trusted subhtoh brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Unmatched Strength:** Supports up to 1000 lbs with Class 3 heavy-duty piston certified by BIFMA & TUV. - • **Seamless 360° Rotation:** Effortlessly swivel your chair in any direction for ultimate flexibility and comfort. - • **Cost-Effective Chair Revival:** Save hundreds by upgrading your chair’s hydraulic piston instead of buying new. - • **Universal Fit for Most Chairs:** Precision-engineered 51mm outer diameter fits gaming, office, and executive chairs alike. - • **Quick & Hassle-Free Installation:** Replace your broken cylinder in under 10 minutes—no professional help needed. ## Overview The Subhtoh Universal Size Chair Cylinder Replacement is a heavy-duty, Class 3 gas lift piston designed to support up to 1000 lbs. Featuring a 4.0-inch stroke and 360-degree rotation, it fits most office and gaming chairs with a 51mm outer diameter. Certified by BIFMA and TUV, it ensures durability through 100,000 lift cycles. Easy to install, this hydraulic piston offers a cost-effective solution to restore chair height and functionality without replacing the entire chair. ## Description desertcart.com: Subhtoh Universal Size Chair Cylinder Replacement Parts 4.0 inch Stroke Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Hydraulic Piston Cylinder Heavy Duty 1000 LBs : Automotive Review: Good product, works well. Instructions iffy. - Installing this item was straightforward, except the instructions said to remove a red cap but there was none. There is an orange button which I left in place and others seem to have done the same. Works fine. Getting the old cylinder out was a PITA. There is a retaining clip on the bottom which, to be fair, the instructions did say to remove. I did not do this and wound up smacking the old one out of the base several times with the hammer side of my 8lb splitting maul. That worked but now I think it might have gone easier if I had removed the clip - perhaps it would have relieved the internal pressure and made the cylinder slightly narrower. To get the other end out of the chair mechanism I went to Harbor Freight and spent $12 on a big pipe wrench. 5 minutes after getting home it was out and the chair was usable again. Overall very happy. Would purchase again. Review: Works as described :) - This slid right in as a replacement to my chair I got from staples. I dealt with a blown hydraulic cylinder for the last year and a half. Finally got tired of it but am not at the point where i'm ready for a new chair. This cylinder fit perfect, took less than 10 minutes to remove the old one and replace with this, and It's been working great for the last few months of use. ## Features - EASY INSTALLATION: No need spending hours to remove your chairs old broken cylinder, you can remove broken piston and install our gas lift for chair easily. We will also make sure to help guide you if you need. - HEAVY DUTY CLASS 3 PISTON CHAIR: our office chair piston passed the top-level test of BIFMA and TUV certification, lifting up and down 100000 times. - ADJUSTABLE CHAIR CYLINDER: 100mm Class 3 piston, extended total length 345mm, 360 degree rotation to all directions, freely lift and rotate your chair smooth and quietly. - EXCELLENT ALTERNATIVE PARTS: Save your money is our goal. If your chair sinking, you don’t need to buy new chair directly. Choose our piston can save your money. - UNIVERSAL SIZE THAT FITS MOST CHAIRS: Outer cylinder diameter 51mm (2 inches). Inner cylinder diameter 28mm (1.1 inches) fits the salon chairs, executive chairs, work chairs, rolling stools on the market, and has a better load-bearing capacity. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BRQ5K1W4 | | Additional Features | Ergonomic | | Age Range Description | Adult | | Arm Style | Armless | | Back Style | Solid Back | | Best Sellers Rank | #579,035 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #1,120 in Home Office Desk Chairs | | Brand Name | Subhtoh | | Color | Black | | Customer Reviews | 4.2 4.2 out of 5 stars (578) | | Fill Material | Foam | | Finish Types | Steel | | Frame Material Type | Alloy Steel | | Furniture Base Movement | Swivel | | Furniture Finish | Black | | Included Components | chair | | Indoor Outdoor Usage | Indoor | | Is Foldable | No | | Item Depth | 2.28 inches | | Item Dimensions | 9.6 x 2 x 2 inches | | Item Dimensions D x W x H | 2.28"D x 2.19"W x 11.93"H | | Leg Style | Straight Leg | | Manufacturer | SUBHTOH | | Material Type | Alloy Steel | | Maximum Weight Recommendation | 1000 Pounds | | Model Number | CYA-BL40-S-R | | Pattern | Solid | | Product Care Instructions | Wipe Clean | | Reclining Position Count | 1 | | Recommended Uses For Product | Gaming, Office | | Required Assembly | Yes | | Room Type | Office | | Seat Material | Foam | | Shape | Rectangular | | Size | 4.0 inch | | Style Name | Modern | | Surface Recommendation | Hard Floor | | Tilting | Yes | | UPC | 606719381869 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Subhtoh - **Color:** Black - **Material:** Alloy Steel - **Product Dimensions:** 2.28"D x 2.19"W x 11.93"H - **Size:** 4.0 inch ## Images ![Universal Size Chair Cylinder Replacement Parts 4.0 inch Stroke Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Hydraulic Piston Cylinder Heavy Duty 1000 LBs - Image 1](https://m.media-amazon.com/images/I/51X9q22g9XL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: is it easy to assemble the new cylinder?** A: By Subhtoh Seller on May 18, 2022 **Q: Does this come with the old cylinder removal tool, the two circular clamps?** A: No. But it is pretty easy to change out. My husband used a hammer to remove the old one. You don't need a lot of force to bump it out. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good product, works well. Instructions iffy. *by P***R on September 5, 2024* Installing this item was straightforward, except the instructions said to remove a red cap but there was none. There is an orange button which I left in place and others seem to have done the same. Works fine. Getting the old cylinder out was a PITA. There is a retaining clip on the bottom which, to be fair, the instructions did say to remove. I did not do this and wound up smacking the old one out of the base several times with the hammer side of my 8lb splitting maul. That worked but now I think it might have gone easier if I had removed the clip - perhaps it would have relieved the internal pressure and made the cylinder slightly narrower. To get the other end out of the chair mechanism I went to Harbor Freight and spent $12 on a big pipe wrench. 5 minutes after getting home it was out and the chair was usable again. Overall very happy. Would purchase again. ### ⭐⭐⭐⭐⭐ Works as described :) *by M***G on October 26, 2024* This slid right in as a replacement to my chair I got from staples. I dealt with a blown hydraulic cylinder for the last year and a half. Finally got tired of it but am not at the point where i'm ready for a new chair. This cylinder fit perfect, took less than 10 minutes to remove the old one and replace with this, and It's been working great for the last few months of use. ### ⭐⭐⭐⭐⭐ Fits most standard office chairs! *by D***N on December 4, 2025* Great replacement part, might have to get your hands dirty. Honestly, if you're heavy like me (250+ lbs) you are most likely gonna need tools to get you're old cylinder out. You'll need a Home Depot bucket, a can of silicone lube/wd40 a hammer and a pipe wrench. Flip your chair over and spry lube/wd40 in all of the seals, let it sit for 5 minutes. After the stem has sat, grab your pipe wrench and tighten it down on the stem right at the base of the chair (Right underneath where the seat cushion is) and twist HARD. You might need to do this multiple times and might also see the pipe wrench dig into the metal of the stem, thats perfectly ok, keep trying. After the stem and wheels are separated from the rest of the chair, you need to separate the stem and the wheel base. Re-lube what you can and set the assembly in the bucket with the wheel base facing upside-down. Using the hammer smack the wheel base off of the stem and let it fall into the bucket. After all of this, its time to install the new cylinder. Slot the new stem into the base with the wheels, after this set the center stem in the mount underneath the chair. let it all slot together. At this point you actually need to sit down on the chair to let the new assembly seat and lock in place. Sit in the chair and bounce up and down for a bit until you hear the chair locking into position. It can take a few tires for the chair to fully lock it, do if it feels loose at first, get trying! ## Frequently Bought Together - Subhtoh Universal Size Chair Cylinder Replacement Parts 4.0 inch Stroke Heavy Duty Gas Lift Cylinder for Office Desk Chairs/Gaming Chair,Hydraulic Piston Cylinder Heavy Duty 1000 LBs - Besitu 500Lbs Office Chair Replacement Parts, w/ 6'' x 10.2" Mounting Holes Chair Base Heavy Duty Plate Swivel Tilt Control Seat Mechanism for Executive and Gaming Chairs --- ## 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.com.kw/products/529719367-universal-size-chair-cylinder-replacement-parts-4-0-inch-stroke](https://www.desertcart.com.kw/products/529719367-universal-size-chair-cylinder-replacement-parts-4-0-inch-stroke) --- *Product available on Desertcart Kuwait* *Store origin: KW* *Last updated: 2026-05-15*