Rubber O'Ring Set of 4 Fuel Injector O-Ring Kit For 1990-2005 Mazda Miata MX5

4 Injector O-Ring Part number: 8574-13-253. 4 Injector Insulator Part number: JE06-13-257. The item in the actual use of the process of quality problems. We also have a high-standard team, qualified by authorized organizations to ensure products are of the highest quality.