Feature●Part Number Case half Oring 10991AA001 X 3 Case half Oring 806932030 X 1●Compatible with Subaru Engine Forester Outback mpreza Turbo Legacy and Non EJ20 EJ25 STi WRX●Compatible With Turbo & Non-Turbo H4 EJ: EJ18 , EJ22 , EJ22T , EJ20G , EJ20K , EJ25D,EJ252 , EJ253 , EJ259 , EJ204 , EJ205 , EJ255 , EJ257●Using high quality materials, the product has to be used for a longer time.●Direct installation, simple and convenient, without any changes to the productDescription