ACDelco 15989709 GM Genuine Parts Front Coil Spring Insulator

The ACDelco 15989709 is a GM Genuine Parts front coil spring insulator (also known as a coil spring isolator or coil spring seat) designed for the steering and suspension system of select Chevrolet and GMC vehicles. This yellow rubber insulator sits between the coil spring and the spring seat, cushioning the interface to prevent metal-on-metal contact and reduce noise, vibration, and harshness (NVH) transmitted into the cabin.

Key Features:

• GM Genuine Part — designed, engineered, and tested to meet GM Original Equipment standards
• Yellow rubber construction for durability and long-lasting resilience
• Front suspension application — upper coil spring position
• Prevents metal-on-metal contact between the coil spring and spring perch
• Reduces suspension noise, vibration, and harshness
• Sold individually (single insulator)
• Direct OEM replacement for precise fit, form, and function

A worn or damaged coil spring insulator can cause clunking noises, increased vibration, and degraded ride quality. Replacing it with the correct GM Genuine Part restores proper suspension performance and helps protect surrounding suspension components from premature wear.