Henan Ola Marine Diesel Engine Co., Ltd, founded in 1980s, with over 40 years of experience in manufacturing and commercializing cylinder heads and cylinder blocks, we’re committed to producing high quality aftermarket replacement parts that suitable for Caterpillar®, Cummins®, Detroit Diesel®, Mercedes®, Volvo®, MAN®, Perkins®, Komatsu®, John Deere®, Mitsubishi® and Yanmar® engines . We’re ISO9001 certified, have 158 employees, our factory covers an area of 72,000 sq, including a mold development center, two foundry sites, two CNC Machining factories and a technical R&D center. Our aim is to provide a wide range of affordable, quality products that ensure high performance and reliability.