Heartman is a Fuel Injection System manufacturer for Diesel Engine in Marine, Power plant and Railway applications with over 50 years of history. As a new corporation after the former company ” Shinsung Diesel Machinery & Tools Co. “, Heartman has contributed to after sales market by providing the quality products with the reasonable cost on time. Established in 1965 as the former company “Shinsung Diesel Machinery & Tools Co.” by the former president Kim Jong-sun, Heartman started business as the first Diesel Engine Fuel Injecton Manufacturer in Korea, pursuing the goal of localization in the fuel injection system which is the ultra-precision core part of Diesel Engine. Heartman has made a tremendous import substitution effect by reliably providing the quality parts to the major domestic fisheries and shipping companies. In 1992, the Heartman products were provided for HYUNDAI-AKASAKA K26, A31, and A34 models of the No.1 diesel engine manufacturing company in Korea. In addition, STX NIIGATA 34HLX engine fuel injection pump assembly was successfully developed in a short period of time and steadily provided to the STX Engine through NIP, a subsidiary and a fuel injection device manufacturer of NIIGATA Engine Co., Ltd. In 2010, Heartman’s products have passed a strict quality control inspection by ROBERT BOSCH of Germany, the home of diesel engine fuel injection system, and Heart+man signed the supply contract with ROBERT BOSCH as the first supplier of the fuel injection equipment. Based on our long experiences, we have accumulated knowledge and know-how that enables to manufacture the product by reverse-design using the existing product as a sample without the original drawing. Even HHI HIMSEN type has been developed with a Re-Engineering technology, it has been exported to the customer all around the world as a reliable brand of substitution.