--- product_id: 23568012 title: "KYB KG4503 Gas-a-Just Gas Shock" brand: "kyb" price: "AR$269562" currency: ARS in_stock: true reviews_count: 5 category: "Kyb" url: https://www.desertcart.com.ar/products/23568012-kyb-kg4503-gas-a-just-gas-shock store_origin: AR region: Argentina --- # High-pressure gas tech 25% more damping power Monotube design, fade-free KYB KG4503 Gas-a-Just Gas Shock **Brand:** kyb **Price:** AR$269562 **Availability:** ✅ In Stock ## Summary > ⚡ Elevate your classic ride with instant, fade-free control! ## Quick Answers - **What is this?** KYB KG4503 Gas-a-Just Gas Shock by kyb - **How much does it cost?** AR$269562 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/23568012-kyb-kg4503-gas-a-just-gas-shock) ## Best For - kyb enthusiasts ## Why This Product - Trusted kyb brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Monotube Mastery:** Outperforms traditional twin-tube shocks with air-free hydraulic design—no fade, just pure performance. - • **Built to Last & Protect:** Full steel rod cover and dual mounting nuts ensure durability and secure fitment for peace of mind. - • **Performance Boosted by 25%:** Experience sharper control and superior damping over stock shocks. - • **Tailored for Classic Muscle:** Precision valving engineered specifically for vintage muscle car dynamics. - • **Instant Response with High Gas Pressure:** Feel immediate handling improvements thanks to advanced nitrogen gas chambers. ## Overview The KYB KG4503 Gas-a-Just shock absorber delivers up to 25% more damping performance with a monotube, air-free hydraulic design that eliminates fade. Engineered specifically for classic muscle cars, it features high-pressure nitrogen gas chambers for instant response and a comfortable ride. Built tough with steel and aluminum components, it ensures durability and precise fitment, making it the ultimate upgrade for vintage car enthusiasts seeking superior handling and reliability. ## Description The KYB Gas-a-Just monotube shock absorber has additional performance advantages over the traditional twin-tube design: It can instantly, automatically adjust to your performance needs and never experiences fade due to aeration. The Gas-a-Just is available as an OE monotube replacement and as an OE twin-tube performance upgrade. The KYB Gas-a-Just has two separate working chambers: An air-free hydraulic piston and valve area for responsiveness & control, and a second high-pressure nitrogen gas area with a floating piston that provides a comfortable ride during normal driving and adds instant performance on demand. Review: Good value. - Good shocks. Stiffer than OE. Great for a heavy car. They lifted the front of my ‘61 TBird slightly. Review: 1954 Hudson Hornet - This is a perfect fit for the 1954 Hudson Hornet. Installed without any modifications. Since I’m doing other work & the car is not driveable I’ll update when I do drive it. Assuming desertcart allows the review to be updated. I can say that compared to the Monroe shocks it replaced these appear to be a much higher quality shock. Why? 1) they have a full steel cover for the rod unlike Monroe, which protects from damage to the rod & subsequent internal seals. 2) they included 2 nuts for each mounting point, thus preventing an unexpected loosening of the one nut at each mounting point the Monroe’s came with. Additionally I used the KYB app to check the compressed & extended lengths as well as listed applications & cross referencing of other shock numbers. Definitely a very good app. The only down side is the instructions are a weird array of photos & no written words. ## Features - Adds up to 25% more damping performance over original equipment shocks - Components and valving designed specifically for classic muscle cars - High gas pressure design provides instant, extra control - monotube design outperforms all other standard shock absorbers - Unique, air-free, hydraulic unit eliminates performance fade ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000C3ZDIO | | Auto Part Position | Rear | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #807,708 in Automotive ( See Top 100 in Automotive ) #86 in Automotive Performance Shocks & Struts #3,567 in Automotive Replacement Shocks | | Brand | KYB | | Brand Name | KYB | | Compatible with Vehicle Type | Car, Truck | | Customer Reviews | 4.5 out of 5 stars 14 Reviews | | Extended Length | 14.53 inches | | Exterior Finish | Machined | | Global Trade Identification Number | 00781552045038 | | Included Components | Shock Absorber | | Item Highlight | Replaces 82026 5751 5819. OE-grade replacement. | | Item Type Name | Shock Absorber | | Item Weight | 1.8 pounds | | Manufacturer | KYB | | Manufacturer Part Number | KG4503 | | Manufacturer Warranty Description | KYB Limited Warranty warrants to the original retail purchaser that each new KYB product purchased from an authorized KYB dealer shall be free from defects for the specific periods listed below, when used on private passenger vehicles and light trucks for personal use under normal operating conditions. Warranty Period A. lifetime: All KYB Shocks Absorbers, Struts, and Strut Cartridges (Except KYB … | | Material | Steel, Aluminum | | Material Type | Steel, Aluminum | | Model Number | KG4503 | | Number of Items | 1 | | OEM Equivalent Part Number | KG4503 | | Part Interchange Info | KG4503 | | Style | Traditional,Classic | | Style Name | Traditional,Classic | | UPC | 781552045038 | | Unit Count | 1 Count | | Vehicle Service Type | Car, Truck | ## Product Details - **Brand:** KYB - **Auto Part Position:** Rear - **Style:** Traditional,Classic - **Vehicle Service Type:** Car - **Exterior Finish:** Machined ## Images ![KYB KG4503 Gas-a-Just Gas Shock - Image 1](https://m.media-amazon.com/images/I/51pdnOHbF-L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good value. *by B***L on March 18, 2021* Good shocks. Stiffer than OE. Great for a heavy car. They lifted the front of my ‘61 TBird slightly. ### ⭐⭐⭐⭐ 1954 Hudson Hornet *by D***S on July 25, 2021* This is a perfect fit for the 1954 Hudson Hornet. Installed without any modifications. Since I’m doing other work & the car is not driveable I’ll update when I do drive it. Assuming Amazon allows the review to be updated. I can say that compared to the Monroe shocks it replaced these appear to be a much higher quality shock. Why? 1) they have a full steel cover for the rod unlike Monroe, which protects from damage to the rod & subsequent internal seals. 2) they included 2 nuts for each mounting point, thus preventing an unexpected loosening of the one nut at each mounting point the Monroe’s came with. Additionally I used the KYB app to check the compressed & extended lengths as well as listed applications & cross referencing of other shock numbers. Definitely a very good app. The only down side is the instructions are a weird array of photos & no written words. ### ⭐⭐⭐⭐⭐ nice ride *by S***. on April 19, 2022* No problems installing. Improved ride quality a lot. --- ## 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.ar/products/23568012-kyb-kg4503-gas-a-just-gas-shock](https://www.desertcart.com.ar/products/23568012-kyb-kg4503-gas-a-just-gas-shock) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-09-13*