ACDelco 22916399 Rear Upper Coil Spring Seat Isolator

The ACDelco 22916399 is an OEM-quality rear upper coil spring seat (also known as a spring isolator or spring pad) designed to provide a precise fit and restore factory ride quality. This upper spring seat mounts between the top of the rear coil spring and the upper spring perch, cushioning the spring under load and helping to isolate road noise, vibration, and harshness (NVH) from the vehicle's chassis.

Key Features:

• Direct OEM replacement for the original rear upper spring seat
• Manufactured to ACDelco's Original Equipment standards for fit, form, and function
• Helps reduce noise, vibration, and harshness (NVH) transmitted through the suspension
• Prevents metal-to-metal contact between the coil spring and spring perch
• Designed for precise positioning and retention of the coil spring
• Durable construction for long service life under normal suspension loads

ACDelco part number 22916399 is a genuine GM-sourced component, making it the ideal choice for restoring suspension integrity on applicable GM vehicles. Replacing worn or collapsed spring seats is an important part of suspension maintenance and helps maintain proper ride height, handling, and comfort.