This item is designed to fit specific vehicles. Please ensure correct part fitment before purchasing this project. Contact the seller directly for additional product information and availability. DISC PAD ELECTRONIC WEAR. Front Driver Side Disc Brake Pad Wear Sensor (EWS36) by Raybestos. Determining the condition of the brake pads, this sensor enables you to make necessary replacements before your vehicle's brake system totally fails. Made to OE requirements for quality and fit, the product provides long-lasting service life while requiring no modifications for installation.