High Pressure Monotube Gas Strut

KYB is well-known for making reliable suspension components that help bring vehicles back to their original driving feel. This Gas-A-Just monotube strut is designed as a direct replacement for your Lexus IS250 or IS350, aiming to restore its original capabilities. It’s built to give you back that responsive control you expect from your car, while also offering a comfortable ride during everyday driving.

Inside this strut, you'll find two distinct working chambers. One chamber houses an air-free hydraulic piston and valve system, which is key for responsiveness and precise control. The other chamber contains a high-pressure nitrogen gas area with a floating piston. This setup allows for a comfortable ride when you're just cruising, but it instantly adds performance when you need it, like during spirited driving or quick maneuvers.

When you're replacing your struts, KYB recommends installing new strut mounts at the same time to help reduce the chance of noise and vibration. You can find compatible strut mounts, part number SM5642, on our site.