JAI YUCH Corporation is the leading manufacturer of precision diesel fuel injection parts for heavy-duty engines. We were established in 1970 with headquarters in Kaohsiung (Southern Taiwan) and operate in national and international markets. We have over 40 years of experience in automobile, marine, railroad applications, and tractor market.  To ensure every single unit of our product to have the maximum performance, and reliability, we're using the highest standard equipment to measure, and test our products.