--- product_id: 625986349 title: "MySit 6\" Stroke Gas Lift Cylinder for Herman Miller Aeron Chair Replacement Parts, Heavy Duty 450lbs New Pneumatic Cylinder, Gas Cylinder, Class 4 (Pin Type)" brand: "mysit" price: "1336.18 DT" currency: TND in_stock: true url: https://www.desertcart.tn/products/625986349-mysit-6-stroke-gas-lift-cylinder-for-herman-miller-aeron store_origin: TN region: Tunisia --- # 6-inch adjustable stroke Class 4 heavy-duty build Supports up to 450 lbs MySit 6" Stroke Gas Lift Cylinder for Herman Miller Aeron Chair Replacement Parts, Heavy Duty 450lbs New Pneumatic Cylinder, Gas Cylinder, Class 4 (Pin Type) **Brand:** mysit **Price:** 1336.18 DT **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your workspace — because your chair should work as hard as you do. ## Quick Answers - **What is this?** MySit 6" Stroke Gas Lift Cylinder for Herman Miller Aeron Chair Replacement Parts, Heavy Duty 450lbs New Pneumatic Cylinder, Gas Cylinder, Class 4 (Pin Type) by mysit - **How much does it cost?** 1336.18 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/625986349-mysit-6-stroke-gas-lift-cylinder-for-herman-miller-aeron) ## Best For - mysit enthusiasts ## Why This Product - Trusted mysit brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Heavyweight Support:** Robust piston designed to handle up to 450 lbs, perfect for long hours of professional use. - • **Precision Height Control:** 6-inch adjustable stroke lets you customize your seating height for ultimate ergonomic comfort. - • **Seamless Herman Miller Fit:** Specifically crafted for Aeron chairs (1996-2012 models), ensuring perfect compatibility. - • **Easy Installation, Instant Upgrade:** Replace your worn-out cylinder effortlessly and reclaim your chair’s premium performance. - • **Built to Last with Class 4 Strength:** Engineered to BIFMA Plus standards for unmatched durability and reliability. ## Overview The MySit 6" Stroke Gas Lift Cylinder is a heavy-duty, Class 4 pneumatic replacement part designed exclusively for Herman Miller Aeron chairs made between 1996 and 2012. Built to BIFMA Plus quality standards, it offers a 6-inch adjustable height range and supports up to 450 lbs, ensuring ergonomic comfort and durability for demanding professional environments. ## Description MySit 6" Stroke Gas Lift Cylinder for Herman Miller Aeron Chair Replacement Parts, Heavy Duty 450lbs New Pneumatic Cylinder, Gas Cylinder, Class 4 (Pin Type) ## Features - CLASS 4 LEVEL GAS LIFT CYLINDER -- This heavy duty gas lift cylinder made with high construction industry standard (BIFMA Plus Qaulity) for Herman Miller Aeron Chair cylinder. - ADJUSTABLE HEIGHT 6 INCH -- Adjustable Height 6 Inch, the fully expanded height is 16 inch, the fully compressed height is 9.9 inch. - HEAVY DUTY 450LBs CHAIR PISTON -- Cylinder replacement for Classic Herman Miller Aeron Chair Size A,Size B, Size C, available for Aeron chair made between 1996-2012 only. Please Check the production date under seat of the chair. - REPLACEMENT PARTS FOR HERMAN MILLER AERON CHAIR -- Please check the cylinder by opening the mechanism box under seat before purchasing. If the Cylinder has a cable plastic actuator on the top of the cylinder that this version will workable. If the Cylinder has a cable pin hook on the top of the cylinder that this version won't workable, please reference to other ASIN: B0B7QTP77K ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | MySit | | Manufacturer | MySit | | Country of Origin | USA | | Model number | GasLiftHMA_R | | Colour | black | | Form Factor | Metal | | Number of Memory Sticks | 1 | | Item Weight | 1 kg 660 g | | Product Dimensions | 5.08 x 5.08 x 29.21 cm; 1.66 kg | | Item model number | GasLiftHMA_R | | Item Height | 11.5 Inches | | Item Width | 2 Inches | | Included Components | Gas Lift Cylinder | | Are batteries included? | No | ## Images ![MySit 6" Stroke Gas Lift Cylinder for Herman Miller Aeron Chair Replacement Parts, Heavy Duty 450lbs New Pneumatic Cylinder, Gas Cylinder, Class 4 (Pin Type) - Image 1](https://m.media-amazon.com/images/I/41t0RLGxk5L.jpg) ![MySit 6" Stroke Gas Lift Cylinder for Herman Miller Aeron Chair Replacement Parts, Heavy Duty 450lbs New Pneumatic Cylinder, Gas Cylinder, Class 4 (Pin Type) - Image 2](https://m.media-amazon.com/images/I/615dGZlFeIL.jpg) ![MySit 6" Stroke Gas Lift Cylinder for Herman Miller Aeron Chair Replacement Parts, Heavy Duty 450lbs New Pneumatic Cylinder, Gas Cylinder, Class 4 (Pin Type) - Image 3](https://m.media-amazon.com/images/I/61ejSI3W6cL.jpg) ![MySit 6" Stroke Gas Lift Cylinder for Herman Miller Aeron Chair Replacement Parts, Heavy Duty 450lbs New Pneumatic Cylinder, Gas Cylinder, Class 4 (Pin Type) - Image 4](https://m.media-amazon.com/images/I/61uY1-LwIqL.jpg) ![MySit 6" Stroke Gas Lift Cylinder for Herman Miller Aeron Chair Replacement Parts, Heavy Duty 450lbs New Pneumatic Cylinder, Gas Cylinder, Class 4 (Pin Type) - Image 5](https://m.media-amazon.com/images/I/51s10LaRAfL.jpg) ## Questions & Answers **Q: The manufacturing plate on my second hand Aeron is missing. Is there some other way to determine the year of manufacture?** A: My label for my Arron also was missing and my chair is very old. I had bought it second hand so had no idea the year it was manufactured. The rings designed to help remove the cylinder were too big for the width of my cylinder and the cylinder was truly stuck. In the end I sprayed WD40 and let it sit overnight then and watched a video on how to remove with a pipe wrench and a hammer. Success!! The new cylinder works perfectly after watching another video on how to adjust it. The videos were on YouTube. I can recommend the cylinder. The rings would have worked well if they had fit my specific situation. ## Frequently Bought Together - MySit 6" Stroke Gas Lift Cylinder for Herman Miller Aeron Chair Replacement Parts, Heavy Duty 450lbs New Pneumatic Cylinder, Gas Cylinder, Class 4, Ref Code 1B08VM B/C (Pin Type) - The Office Oasis Original Rollerblade Office Chair Wheels (As Seen On PBS) - Incredibly Smooth & Quiet Casters - Safe for Hardwood Floors & Carpet - Easy Installation with Universal Fit - Set of 5 - Seat Pad Foam Insert Replacement for Herman Miller Classic Aeron Office Chair A B C Size (Black, A/B) --- ## 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.tn/products/625986349-mysit-6-stroke-gas-lift-cylinder-for-herman-miller-aeron](https://www.desertcart.tn/products/625986349-mysit-6-stroke-gas-lift-cylinder-for-herman-miller-aeron) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-11-10*