This KYB SM1089 kit includes all the necessary components to replace your worn strut mount. A failing strut mount can lead to increased noise, vibration, and a decrease in handling performance. Properly functioning strut mounts are crucial for maintaining your vehicle's ride quality and ensuring the strut operates effectively. They absorb shock and vibration, preventing them from transferring into the cabin. Replacing your strut mounts with this KYB kit will help restore a smoother ride, improve steering response, and reduce unwanted noises from the suspension system.