There’s no single mileage or time interval for damper replacement. It depends on your driving habits, road conditions, and the vehicle type. However, a general guideline is to have them inspected around every 50,000 miles (80,000 kilometers) and consider replacement between 60,000 and 80,000 miles (96,000 and 128,000 kilometers). If you notice any signs of wear or reduced performance (like excessive bouncing, poor handling, or leaks), have them checked immediately, regardless of mileage. Your vehicle’s owner’s manual might also have recommendations.