Carrep Detonation Knock Sensor KS Sensor for Subaru Legacy Limited Postal Brighton Forester Impreza Outback 22060-Aa061 GOOD QUALITY-Directly replace OEM components and will fit exactly for easy installation. OE NUMBER-144-722, WA1752, KS96, SU4989,22060AA061, 22060-AA061, 213-1826, 5S2295, 71-6669 Compatibility: 1996-1998 Subaru Impreza ,1997-1999 Subaru Legacy,1998 Subaru Forester SHIPPING-Free Expedited Shipping ,Built to strict quality control standards