--- product_id: 9494151 title: "Lisle 20400 Universal Shock Absorber Tool" brand: "lisle" price: "€ 36.18" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.at/products/9494151-lisle-20400-universal-shock-absorber-tool store_origin: AT region: Austria --- # Dual hex socket sizes (9/16" & .591") Quick one-end hold, other-end turn design Fits older domestic & Ford OEM shock nuts Lisle 20400 Universal Shock Absorber Tool **Brand:** lisle **Price:** € 36.18 **Availability:** ✅ In Stock ## Summary > 🔩 Master shock nuts like a pro—because your ride deserves precision. ## Quick Answers - **What is this?** Lisle 20400 Universal Shock Absorber Tool by lisle - **How much does it cost?** € 36.18 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/9494151-lisle-20400-universal-shock-absorber-tool) ## Best For - lisle enthusiasts ## Why This Product - Trusted lisle brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Lifetime Reliability:** Backed by Lisle’s limited lifetime warranty—your go-to shock absorber tool for years to come. - • **Compact & Durable Build:** Lightweight 8.96 oz tool crafted with a gemalt finish for long-lasting corrosion resistance. - • **Universal Compatibility:** Engineered to fit a wide range of older domestic and Ford OEM shock absorbers—never get stuck again. - • **Ergonomic Two-End Design:** Hold one end steady while turning the other for effortless shock nut removal and installation. - • **Precision Dual Socket Fit:** Seamlessly tackles both 9/16" and .591" shock nuts for versatile use. ## Overview The Lisle 20400 Universal Shock Absorber Tool is a compact, dual-ended hex socket wrench designed specifically for removing and installing shock nuts on many older domestic vehicles and select Ford OEM models. Featuring two precise socket sizes (9/16" and .591"), it enables quick, secure grip and effortless turning. Lightweight yet durable with a corrosion-resistant gemalt finish, this tool is a trusted choice for mechanics and DIY enthusiasts alike, backed by a limited lifetime warranty. ## Description For Removing and Installing Shock Nuts. Fits many older domestic models and some Ford OEM shock nuts. Place stem socket over shock stem. Hex nut socket fits the nut. Hold one, turn the other for removal. 1 End 9/16" (.5625") and the other end .591" ## Features - For Removing and Installing Shock Nuts. - Fits many older domestic models and some Ford OEM shock nuts. - Place stem socket over shock stem. Hex nut socket fits the nut. - Hold one, turn the other for removal. - One end 9/16" (.5625") and the other end .591" ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B000CO88C6 | | Best Sellers Rank | #39,145 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #6 in Mechanical Shock Absorbers | | Bit Compatibilities | .591, 9/16 | | Bit Set Composition | Single Bit | | Brand Name | Lisle | | Customer Reviews | 4.3 4.3 out of 5 stars (722) 4.3 out of 5 stars | | Drive Bit Application | automotive | | Drive Bit Shank Style | dual | | Drive System | Hex | | Finish Types | Gemalt | | Global Trade Identification Number | 00083045204008 | | Included Components | Manufactuered Brand Product | | Item Length | 1.15 inches | | Item Type Name | Tools | | Item Weight | 8.96 ounces | | Manufacturer | Lisle | | Manufacturer Part Number | 20400 | | Manufacturer Warranty Description | Limited Lifetime | | Material Type | manmade | | Model Number | 20400 | | Number Of Items | 1 | | Number Of Pieces | 1 | | Unit Count | 1 Count | | Upc | 083045204008 | ## Product Details - **Brand:** Lisle - **Item Length:** 1.15 Inches - **Material:** manmade - **Finish Type:** Gemalt - **Number of Pieces:** 1 ## Images ![Lisle 20400 Universal Shock Absorber Tool - Image 1](https://m.media-amazon.com/images/I/41vDZUJHsAL.jpg) ![Lisle 20400 Universal Shock Absorber Tool - Image 2](https://m.media-amazon.com/images/I/71t2bNz5rML.jpg) ## Questions & Answers **Q: What are the dimensions of the double d end(s)? Flat to flat, and oval to oval.** A: This set 3 sizes Flat to Flat / Oval to oval-6.3mm/7.9mm, 5.6mm/7.7mm, 6.5mm/8mm. They have been used so it was hard to measure accurately- Cheers Good luck **Q: What is the wrench size of the Double D hex tool? (I need to put this one a 1/4 drive inside a 19 mm deep socket)** A: The silver is a 1/2 inch outside diameter the black granite is a 7/8 inch outside diameter **Q: Does this fit to 17 mm nut?** A: It doesn't fit over ANY nut. It fits over the end of the SHAFT, so you can turn the nut, without the shaft turning. **Q: Will this fit an Audi rear shock?** A: Am not sure on that one. If they have been replaced most likely. If original maybe. These fit the kind that have a center post that is ground flat on 2 sides..I ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very good High-Quality Tool *by on Reviewed in the United States August 8, 2026* Very good, high-quality tool. Worked perfectly for my shock replacement work. ### ⭐⭐⭐⭐⭐ Can't go wrong with Lisle, Grips like a Crocodile *by on Reviewed in the United States October 12, 2025* What a timesaver. This tool makes quick work out of swapping shock absorbers, EASY to remove and reinstall. Cost is worth 30 to 45 minutes of my time while being rained on by road debris as I am figuring out new words of frustration with improper hand tools that are destroying fasteners. Make life easier on yourself, this just works and works quick. Let the tool be a tool and don't be a tool of cheapness; this is a gift to yourself! ### ⭐⭐⭐⭐⭐ Amazing Tool! Simplicity at it's Best *by on Reviewed in the United States May 29, 2011* For every do-it-yourself type personality out there, this is a must have tool. You may only use it once in a lifetime. But for the minimal cost, it is worth every penny. In fact this little tool will pay for itself once you remove the first shock absorber. If anyone reading this has never removed a front shock absorber, it can be a nightmare.The shock stem, which has a shaft that slides within the shock body, has a threaded top and supported by rubber bushing and a top nut. When you attempt to loosen the top nut, the stem will spin inside the shock body. This makes it virtually impossible to remove the top nut. Most backyard mechanics resort to cutting the stem, nut splitters or using some muscle and breaking the shock shaft. In most cases using one of the above mentioned procedures results in loss time, knuckle busters and frighteningly abrupt language.How this tool works is the larger hex key will fit over most OEM shock absorber nuts. There is a different fitment on each end of the hex key for different size nuts (9/16 or 15mm). On the top of each shock absorber shaft, above the threaded portion, there is a oblong shaped nib. The smaller hex keys provided have various size fitments for the top of the stems. The smaller hex key will slide down inside of the other larger nut hex key and you can hold the stem in place with either a wrench or a small socket ratchet. Then, using an open end wrench turn the larger hex key that is over the stem nut. In a perfect situation, using this tool. I can change out a shock in about 5 minutes!Please note that I have found the hex key for the nut may not fit the nuts on aftermarket shocks. There are two solutions for this. The first is the easiest. Just get a new nut of the same thread pattern that will fit the tool. The second is more work involved, but if you plan on changing out shocks more than a few times, or are just the type that is a tool junkie, you could get an inexpensive socket set containing larger sizes. Put them in a vice and grab your angle grinder and grind some flat sides on the end of each socket. You can then grab it with a wrench. I don't particularly recommend this, as it's just easier to find a new nut. At any rate, I think you will find this tool a pretty useful time saver worth the price. ## Frequently Bought Together - Lisle 20400 Universal Shock Absorber Tool - CTA Tools A430 GM Shock Absorber Socket - Compatible with GM - ZKTOOL Suspension Strut Housing Socket for Ford GM --- ## 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.at/products/9494151-lisle-20400-universal-shock-absorber-tool](https://www.desertcart.at/products/9494151-lisle-20400-universal-shock-absorber-tool) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-08-16*