YAC incorprated in 1971 is engaged in manufacturing of automotive pistons cylinder blocks. The foundation of the company s progress In accordance with the company s belief that all the products should be world class was based on the passion of our predessors for making the products touch prefection. The constant willingness to take risks and dedicated efforts to achieve success make up the YAC spirit which has been inherited in an unbroken line and have contributed to our progress. Flexible design and manufacturing methods have greatly influenced quality at a competitive cost.