This TOPRAN brake pad wear indicator, part number 501 406, is designed to alert you when your brake pads have reached their minimum thickness. Proper functioning of this sensor is crucial for maintaining optimal braking performance and preventing damage to your brake discs. Engineered to meet the specific requirements of your vehicle, this indicator ensures reliable operation and accurate signaling. It is a direct fit replacement, making installation straightforward and hassle-free. Trust TOPRAN for quality components that keep your braking system in top condition.