Professional Grade; Box of 12 Alternate/OEM Part Number(s): H11392 RAYBESTOS Warranty Information 3 years / 36,000 miles (excluding normal/uneven wear such as warping which could be an indication of faulty calipers and/or other faulty brake components). Service Grade-90 days. Axle Bearing and Hub Assemblies 12 months, unlimited mileage. Towing, racing, off-road, and fleet vehicles not covered under warranty. Warranty Details