REBUILT HARMONIC BALANCER FOR CRANKSHAFT FITS 2003-2008 S-TYPE R, 2004-2009 XJR, 2003-2009 XKR, 2009-2010 XFR, 4.2 SUPERCHARGED CARS ONLY! Replaces AJ88653 AJ810655. The price includes a $400 core charge that you get back when you send your old part to us. Core charge note: Your core must be undamaged and in rebuildable condition or your core charge will not be refunded. (AJ811117)