I have a 1988 Mercurser 3.0L with an Alpha 1 drive.<br /><br />I am looking for the SHIFT INTERRUPTER or CUT OUT SWITCH p/n 39670A28. This sits on the rocker cover and disables the starting (coil?) circuit if trying to start the engine while in gear.<br /><br />Mercruser parts as well as Mercury parts express both do not stock this part any longer. It is obsolete.<br /><br />Anyone out there know of a replacement part number? Thanks in advance.