Commercial vehicle spare parts are developed in accordance with urban and intercity usage conditions, taking into account the maximum load carrying capacity and road conditions. As a result of R&D studies based on chronic problems, critical components such as transmission gears, axle gears, differential gears and driveline gears are manufactured with materials with increased durability. Offering maximum performance in high torque and long-distance driving, these parts increase the operational efficiency of commercial vehicles by reducing maintenance costs with their wear-resistant structure.