Fits rear upper and lower coil spring seats on Honda Civic (2006–2011). These insulators cushion the spring and seat interface to reduce noise, vibration, and premature wear — restoring quieter, smoother rear suspension performance. Key benefits Reduces noise and rattles: cushions metaltometal contact between coil spring and chassis or spring perch. Protects suspension components: minimizes abrasion and wear on springs and mounting surfaces. Restores ride quality: helps maintain correct spring seating for consistent handling and comfort. Simple replacement solution: intended for rear applications on 2006–2011 Honda Civic models to address common wear and degradation. Key attributes Compatibility: designed for rear coil spring upper and lower seats on Honda Civic model years 2006 through 2011. Functionality: isolates vibration, prevents metal contact, and stabilizes spring positioning. Performance: improves NVH (noise, vibration, harshness) characteristics and extends component life. Form factor: shaped to fit upper and lower rear spring seats for the specified vehicle range. Typical applications / use cases Suspension refresh: worn or cracked rear spring insulators during a strut or spring replacement to restore correct seating and reduce suspension noise. Eliminate rear spring rattle: solve intermittent clunking or rattling coming from the rear when driving over bumps or rough roads. Prevent further damage: install insulators to stop rust or wear on the spring ends and mounting surfaces after noticing deterioration of the original parts. Installation notes Intended for rear application on Honda Civic 2006–2011. Confirm vehicle fitment before installation. both upper and lower insulators if either shows wear to ensure balanced performance and proper spring seating. What you get Rear upper and lower coil spring seat insulators compatible with Honda Civic (2006–2011) rear suspension — designed to restore proper fit, reduce noise, and protect spring and mounting surfaces.