REBUILT CRANKSHAFT DAMPER HARMONIC BALANCER PULLEY FITS 1998-2003 XJ8 AND 1997-2002 XK8 MODELS. NCA1411AB NCA1411AE NCA1411AF (AJ81330) The price includes a $200 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.