Description This valve spring retainer will fit all Kawasaki 1200 STX 1200cc model engines. OEM #: 12009-1058 16 req'd 2003 Kawasaki STX-12F 2004 Kawasaki STX-12F 2005 Kawasaki STX-12F 2006 Kawasaki STX-12F 2007 Kawasaki STX-12F