1998 Mercury Sport Jet Models Where can I find my serial number? 120 [JETPUMP] H63SP10UD 120 [JETPWHD] H120J0RUD 120XR (JET DRIVE) 1998 0E288446 THRU 0E344999 [Serial] 120XR (POWERHEAD) 1998 0E315905 THRU 0E341982 [Serial] 120XR [JETPUMP] H63SP20UD 175 [XR2] 1175J01UD 175XR2 [JETPUMP] H74SP10UD