DENSO has taken everything they have learned as an Original Equipment manufacturer and use it to their superior aftermarket product lines of auto parts. Every part that leaves their factories has been designed with precision, manufactured to OE standards and subjected to rigorous safety and performance tests. DENSO factories are QS9000 and ISO9000 certified worldwide, just one of the many reasons why zero defects for parts produced in the millions is a reality for DENSO. The OE-standard quality and reliability of DENSO aftermarket components add up to a tremendous value. Quality, Reliability and Value.