Heavy Duty 4707 4707Q Brake Shoe Box Kit designed for air brake drum systems on commercial trucks, trailers, and buses. Manufactured with high-quality materials and advanced production processes to ensure stable braking performance and long service life. This brake shoe kit features premium 23K friction lining and precise dimensions of 16.5” x 7”, providing reliable stopping power under heavy loads. The complete box kit includes two brand-new brake shoes and all required hardware components for replacement, helping reduce installation time and vehicle downtime. Engineered for precise fit and consistent performance, this aftermarket brake shoe kit is an ideal solution for maintaining safe and dependable braking in heavy-duty applications.