Rebuilt Damper, Crankshaft Damper, Rebuilt, XJ-S 5.3-Liter V-12 With Multi-Rib Serpentine Belt but Without Marelli Ignition. $150 core charge. Click "VIEW" for specific application information. Illustration item 1 This damper fits XJ-S V-12 engines 8S.57572 to 8S.64244. These engines have a serpentine belt but do not have Marelli ignition. This damper does not have what looks like a roll pin set in the rubber portion. JA-EAC9693/X or JA-EAC9693/RB can be used for this application, but not the other way around.