you are buying a GOOD USED (DISTRIBUTORLESS) MOTION SENSOR DISTRIBUTOR IGNITION SYSTEM IT COMES WITH MOUNTING BRACKET WITH BREAKER ,MOTION SENSOR DISTRIBUTOR,IGNITION COIL , IGNITION CONTROLE MODULE AND WIRING AND SENSORS. CAME OFF A WORKING 1992  3.0 MERCRUISER. SEE PICTURES YOU GET WHAT YOU SEE IN PICTURES MAKE SURE ITS WHAT YOU NEED NO RETURNS