CRANKSHAFT DAMPER, REBUILT, HARMONIC BALANCER (V-BELT) FITS 1976-1988 XJS V12 5.3 ENGINES. 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. (C36013)