The Diesel company is known as a leading agent in the sale of valves for Komatsu and Cummins engines, manufactured by the Queen brand and the Italian Oswat factory, in Iran. With more than two decades of experience, the company offers deep technical and specialist skills in the field of diesel engines. Diesel Expansion emphasizes expert maintenance, supply of high quality parts, and technical advice. Its commitment to customer satisfaction and strong support has built a reputation for customer-centric service. Innovation and continuous improvement in products and services is the main reason why Diesel Extension has become one of the most trusted dealers in the diesel engine spare parts industry. By striving to increase quality and efficiency, the company ensures that customers' needs are met with the highest level of quality.